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Instant Noodles

Moment noodles are famous and much of the time devoured by the vast majority today. Be that as it may, most purchasers are dumbfounded with regards to the harms these items incur on their bodies. By exploring the most well known brands of moment noodles here in China, we will have the option to precisely discover the â€Å"most healthy† brand of moment noodles dependent on its oil content. Thusly, we will have the option to forestall the various medical issues that have occured from these items from emerging once more. Besides, the restricted brands of noodles likewise impede us from having a more extensive examination on the theme. Related Literature From the time Momofuku Ando built up the principal moment noodles, they have ruled the noodle business, and its belongings can in any case be seen today. Their fundamental clients are the undergrads and others who are consistently in a hurry, individuals who don't have the opportunity to prepare breakfast, or individuals who are languid to. Moreover, as indicated by english. ndtv. com there have been high measures of plasticizers in moment noodles in China.The procedure of making the noodles is the thing that influences the water permeableness of the noodles. Truth be told by Beijing time progress innovation improvement co. LTD. , moment noodles are made out of an assortment of batters, which are framed to make noodles, cooked, at that point southern style in oil. They are then gotten through air blades, which doesn't in any case, expel all the oil. This is the reason moment noodles contain such high measures of oil, which causes kidney stones, and keeps it from engrossing water.Oil isn't the main unfortunate material in moment noodles. Truth be told by Dr. Edmond Lee, moment noodles likewise contain high measures of starches, sodium, MSG, and immersed fat. This is the reason we test the noodles for its water permeableness, since it is one of the components that will show whether a moment noodle item is hig h regarding oil-content. This is on the grounds that oil and water don't blend when something is canvassed in oil water won't have the option to go through in this way less water absorbency.We plan to test the water receptiveness by soaking the noodles in water and estimating the measure of unabsorbed water left. By doing this we can assist individuals with picking the moment noodles with the least oil content, in this way helping them forestall different afflictions brought about by the moment noodles, and helping them get as much supplements as possible acquire. Besides, the network will be progressively educated regarding the best brand of moment noodles with the help of this examination.

Essay Writing Tips - Writing an Essay Online

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Child Development And Childhood Development - 1564 Words

Child Development 2 to 5 Years By creating a decent understanding of parenting strategies and childhood development, this will help parents understand and comprehend exactly what to expect and how to provide what their child needs during each developmental stage of their life. All parents can benefit, also those who work with children can benefit greatly by increasing their knowledge, awareness and understanding of overall childhood development. The stage of child development I have chosen to discuss is 2 to 5 years old. This developmental stage is often referred to as the â€Å"preschool years† where children learn a great deal. The reason I chose this stage is because I believe it is very broad and quite a bit goes on during this stage in a child’s life. When a child begins to take the first steps on their very own, they are free to explore and roam around their own little world; this opens up a brand new phase of development. During the preschool years, children are able to take huge leaps in lang uage development, discover independent nature, self/emotional regulation and rapid physical and intellectual development. As preschoolers enter and exit the â€Å"terrible twos,† their language skills change radically. Parents, caregivers and other family members play a strong role and influence on a child’s development of language and pre-literacy skills. The number of words a child can say during this stage increases not only highly but also very quickly. When children reach 2 years ofShow MoreRelatedChildhood Development And Child Development Essay2174 Words   |  9 PagesMy topic is Early Childhood Development and this is the finding to know if attending pre-school or head start would help the child’s development and have the child more prepared for kindergarten. This topic is based on the social learning theory and how each family teaches their child differently. I have chosen to do my topic on Early Childhood Development because of my practicum being a developmental center (Inspire), also because I have a passion in working with families and children. This appealsRead MoreChild Development And Childhood Development1877 Words   |  8 PagesIntroduction Childhood development encompasses the cognitive, physical, social, moral and emotional changes from birth until the end of adolescence (White, Hayes Livesey, 2013). Throughout childhood, environment and genetics promote or discourage growth and development. This essay will analyse the cognitive, physical, social, moral and emotional domains in relativity to my own development from the prenatal stage until adolescence. Psychological and environmental theories are used to develop theRead MoreEarly Childhood And Child Development928 Words   |  4 PagesChildren that are well nurtured can live well and be sociable. Early childhood is the most rapid period of development in a human life. A child creates their own sense of identity. Indeed, it is important for a child to have a sense of identity. Although individual children develop at their pace, all children progress through an identifiable sequence of physical, cognitive, and emotional growth and change. The early child development approach is based on that children respond best when caregivers useRead MoreChildhood Development : Child And Adolescent Psychology1265 Words   |  6 PagesChild and Adolescent Psychology Early Childhood Development Unit 9 Assignment Kenneth Peter Smith PS220 December 18, 2014 Professor Linda Smith So what goes on during Early Childhood - ages 3 to 6. Development is very crucial in every aspect of childhood but why is it important during early childhood? What goes on during this time frame in a child’s life that’s going to dictate every aspect of the child’s life for now and evermore? Is this stage of a child’s development even importantRead MoreEarly Childhood Development : Child Welfare1640 Words   |  7 Pages Early Childhood Development Rossy Sical SWK 346 Child Welfare Professor Carew February 3, 2015 Early Childhood Development Early childhood development is a fundamental key to a full and productive life. This stage of development is not only important because of its rapid development but also because it is the foundation of children’s future cognitive, behavioral and emotional well-being. Children during this stage require love and physical and verbal stimulationRead MoreChildhood Development And The Whole Child Concept Essay1365 Words   |  6 Pagesearly childhood development and the Whole Child concept. Early childhood development is the study of children’s growing and development from eight years old to pre-birth. Explain why it is important to understand early childhood development. It is important to understand early childhood development because it helps to understand the children better. In order for the teachers to meet the children’s needs, they have to know how and what they need to do. Learning early childhood development is alsoRead MoreChild Development And Early Childhood Education Essay1193 Words   |  5 Pageshe location chosen to do the twelve hours of service learning participation was the Early Childhood Learning Center. Interviews to the agency occurred on November 8th and 9th. The Early Childhood Learning Center (ECLC) is a child development and early childhood education center. ECLC was established the fall of 1970 to provide Early Childhood Education Majors an opportunity to familiarize themselves with children and their characteristics. ECLC is a great facility that not only helps children butRead MoreEarly Childhood Development: Breastfeeding and Child Milestones632 Words   |  3 Pagesmost nutritional option. The CDC (center for dieses control) released a statement saying, â€Å"Breast milk is widely acknowledged as the most complete form of nutrition for infants, with a range of benefits for infants health, growth, immunity and development (Nrdc.org, 2005).† When an infant is born they are rapidly exposed to a multitude of new diseases and infections. Infant formulas are only able to mimic a very small amount of the nutritional components found in breast milk. One of the best thingsRead MoreThe Impact Of Early Childhood Education On Child Development1298 Words   |  6 PagesImpact of Early Childhood Education on Child Development Over the past century, the role of education has greatly increased in areas all over Canada. It has grown in not just in the number of students attending, but also in the ways it has been offered. Before the 1960’s, the education of children consisted solely of parenting done at home (Molnar, 2002, p. 2). Over time, due to the growing importance of education, schools have slowly begun to target younger and younger generations. As a resultRead MoreChildhood Development : An Reliable And Affordable Child Care Essay2067 Words   |  9 Pagesmany families in America struggle to find reliable and affordable child care? The problem is epidemic; households spend close to $30 billion a year due to this child care problem. The government should step in and offer more support to these families by developing a government sponsored day care system that would be staffed by professionals trained in early childhood development. This would help solve the reliable and affordable child care p roblem because the fees would be based on a family’s income

Supporting Teaching and Learning Level 3 Diploma free essay sample

At present employed at Cheam Park Farm Junior School in Year 5 as per the job description (see attachment 1) I have a range of duties such as enabling access to learning pupils and to assist the teacher in the management of pupils and the classroom. Supervising and providing particular support for pupils and ensuring their safety and access to learning activities but also challenging children to make them work to the best of their ability. Supervising children at playtime and making sure there playing safely individually and in groups. Setting out activities asked by the teacher and clearing up after the lesson has finished, delivering interventions groups and working one to one for the lower ability that may need more support, also making relevant resources to help the children with their learning. 1. 2 The introduction of the standards for Teaching Assistants to see a clear path for progression which therefore the role of the TA has become more valued and professional. The qualifications available for Teaching Assistants are as followed Level 2 in Supporting Teaching and Learning, Level 3 Certificate Supporting Teaching and Learning, Level 3 Diploma in Supporting Teaching and Learning and becoming a HLTA which a in job status and is up to your work place to do so, to progress even higher foundation degree/QTS are available. As a TA`s role has become professional more emphasis is now placed on CPD so that the TA can evaluate their classroom performance skills to become more qualified. In addition TA`s must also have qualities such as being a good communicator, be a good listener, a concern and understanding for children, being able to build good relationships with children and colleagues, working well in a team, being sensitive and enthusiastic and being able to use their initiative when necessary and willing to undertake a CPD to be able to reflect and progress in the job. Other Expectations needed to be reached in order to be a competent TA are, emotional intelligence, be a good listener, be consistent and have a good sense of humour. Outcome 2 2. 1 Reflection is important as it helps us identify what we think we do and what we actually do such as Donald Shon introduced the concept of reflective practise he claimed that reflection is a continuous process from a personal perspective, by considering critical incidents through life experiences. There are two types of reflection, reflective in action which is during being able to think on our feet and adjust what we are doing this comes from our experience and knowledge, whereas reflective on action is after the event has finished and reflect on what we do and why. It is helpful to have feedback from more than once source to that we can use the critical reflection to become more experienced and do our job to the best we can be. Sometimes we find it hard to judge our own performance, we may not like to compliment or criticise ourselves but unless we use reflective methods, how are we going to teach effectively and better our knowledge. As a teaching assistant we teach: Lifeskills Social skills Manners He identified that there were four different lenses in which reflection could be used to increase our awareness to be critically reflective. The Autobiographical Lens- Based upon our own individual experiences and influences what we view as acceptable behaviour and how we judge others. Our Students Eyes- Based upon how the pupil see us and do we meet their expectations of what a teacher should do. Our Colleagues experiences- This is based on how colleagues observe and judge us. Theoretical literature- This is the use of all Medias: Magazines, Television and reports to underpin reasons for our practice through theory. 2. 2 Reflecting on my practise by identifying personally what I found hard and how I could improve and gain more knowledge and extend. Also by completing a SWOC analysis(see attachment 2) for my own feelings and what I as an individual would like to gain more knowledge on and what current opportunities would be available to me and what may prevent me from turning my weaknesses into strengths. In class I also answered some questions on what I have learnt about myself as a TA and what were my highest/lowest emotional moments in the current week this was a good way of reflecting on my practise as made think on what my strengths and weaknesses are and what I need to progress on (see attachment 3) In my place of work we also every 6-8 months have a performance management meeting with our line manager to discuss what courses we would like to attend and what we would like to progress on(see attachment 4). During the course of Unit 332 we complete a PDP (personal development plans) by using SMART targets to address development/learning we want to improve on ( see attachment 5). Specific- target states exactly what is required Measurable- you have to be able to measure whether the target has been achieved Achievable- the target should be accessible Realistic- you have to have access to the training or resources required Time-bound – must have a time limit (short/mid/longer term) Johari`s (Luft 1970) The Jorahi`s Window is like a grid It goes from the obvious and more conscious areas of your life to the less obvious areas that you may not be aware of, starting in the unconsciously incompetent such as a blind area to then becoming unconsciously competent where you are good but you don’t realise or need to develop to then becoming consciously competent, and I as an individual would like to continue to develop and progress my knowledge. 2. 3 There are four main influences that may affect our working practise; institutional the work place and what the school stands for and how to promote and reinforce the ethos. Professional the things that each individual believes and putting them into practise, which comes from their professional background. National and Regional beliefs which are what individuals and groups believe and stand for because of their background. Personal values are views and opinions which have influenced us by parents, teachers, media, politicians, friends, colleagues and personal life experiences. An important part of personal and professional development is to be aware of differences and how to respond to them, we must be open minded, if you fail to do this is may interfere with the standard of the codes and practises for working in the children’s environment. We must treat others how we wish to be treated ourselves and that their values and beliefs are important and although they may be different to your own, this is what gives us our own individual personalities. Outcome 3 3. 1 My job description and the level 3 standards are based around my performance, knowledge and understanding of Supporting Teaching and Learning. My job description (attachment 1)clearly states to be up to date with Level 2 supporting children which I am qualified in and have recently passed my Level 2 Cert Qualification and continuing my qualification by becoming more experienced with Level 3 Cert , also being up to date and having a record of recent and relevant in service training such inset days which I attend at the start of each term to keep and weekly Teaching assistant meetings with our SENCO to have a regular understanding on different ways of how children learn and if to go any relevant courses. By using new skills in your performance to ensure the children are learning the best way for that individual and what new strategies are being put in place. I would like to improve my knowledge by going on courses that are relevant and keeping up to date with new procedures that are put in place. 3. 2 I have received different types of feedback from working at Cheam Park Farm; School monitoring Evaluation HLTA/TA planning from which I received from my schools SENCO ( see attachment 6 ) My PDP from work ( see attachment 4) Regular Teaching assistant meeting agendas which I attend every Tuesday morning ( see attachment 7 ). Outcome 4 4. 1 TA`s can engage in CPD Every day. By assisting in the classroom we are observing how our colleagues work and we can absorb this information and put into practise to improve our performance. When I am working in the classroom I get plans of what we will be doing and who I’ll be working with so I have time to gather resources to support and assist the children to meet the needs of the individual and can identify areas which I need to work on and ask the teacher if I’m unsure. The schools learning strategies are rapidly  changing and we must be able to uphold these changes and new methods. We can also ask other staff in the school such as other TAs/HLTAs and observe them to gain more knowledge and new methods and ideas we can use. At Cheam Park Farm we are always engaging in training and have weekly meetings with our line manager (SENCO) to be given training and to discuss different methods and ways of working when in the classroom assisting the children a nd teacher, we also have to complete planning at the end of each lesson to say who we supported and what methods we used to teach the individual. It is important to identify priorities when agreeing a plan, as this is all about you and your needs as we all have different abilities and areas of concern, these areas can be improved and developed will be on going, as the school environment is changing and expectations are getting higher so our skills needs to be constantly increasing. The areas of priority for development are stated in my PDP( see attachment 5). 4. 2 As an employee of Cheam Park Farm Junior School I attend regular Performance Management meetings and reviews where I Discuss with my Line manager ( SENCO ) training I would like to go on and ways of meeting this. (see attachment 45) 4. 3 In class we have had many discussions, we recently worked in groups to discuss and compare our job roles using our individual job description, and then we compared them to what we actually do whilst looking at our job description. We also worked in groups to discuss certain areas we would like to develop in and widen our knowledge by completing a SWOC analysis (See attachment2). The evidence gathered from this allowed me to complete my PDP (attachment 5) with targets using SMART for guidelines, we also answered a list of questions relating to a week of working as a TA (see attachment 3). Outcome 5 5. 1 Since attending college, I have learnt a lot on how to evaluate my progress and how to act on findings. By having group discussions and feedback has helped me to deal with situations effectively also by taking into account different beliefs and values. I always take notes in the classroom and from this can put tasks in to action. I have also learnt that feedback is important and which help me to progress and focus on the certain areas I need to improve. In the classroom I have also realised everyone has different ideas and knowledge but we all want the same results and that there are different paths to follow. 5. 2 One of my tasks in school is to take care of a small spelling group. I have a group of 4 children, of which I do one to one spelling test and helping them find ways to improve their spellings at least twice a week. At the start of the week we have one to one sessions using different resources and strategies to meet that child’s individual needs to give them the best support I can for them to remember and get there spellings right in the test, such as using the LOOK COVER RIGHT CHECK method has helped the majority of my group to become more independent when writing alone, we also have regular phonics group to help them practise sounding the word out. I always feed back to the class teacher on how each child done in there test and if certain child need more help then we always figure out the most suitable time to take the child out to help them and support them in their spellings. I feel I have made a good relationships with each child and find fun but suitable ways to remember there spellings for examples songs or little phrases for them to remember the trickier words. The school must be aware of our achievements and qualifications so they know what the next step of training we should be going on and how to progress. Certificates and qualifications should be available as evidence and helps to keep a portfolio of your achievements to show colleagues later on in the future.

Partial Replacement of Cement with Marble Powder free essay sample

PARTIAL REPLACEMENT OF CEMENT WITH MARBLE POWDER A MINI PROJECT REPORT Submitted by; RAHUL-M JAMSHEED . P MUHAMMAD SHANIL . K. P GEO . P. JOSE JAGADEESH . K. A | | | | | | | | In partial fulfilment of the requirements for the award of degree of BACHELOR OF TECHNOLOGY IN CIVIL ENGINEERING DEPARTMENT OF CIVIL ENGINEERING AWH ENGINEERING COLLEGE KUTTIKKATOOR DEPARTMENT OF CIVIL ENGINEERING AWH ENGINEERING COLLEGE CALICUT-8 KERALA 2011 CERTIFICATE This is to certify that this report entitled â€Å"partial replacement of cement with marble powder† is a bonafide record of the mini project presented by rahul , jamsheed, shanil , geo, and jagdeesh, under our guidance towards the partial fulfilment of the requirements for the award of bachelor of technology degree in civil engineering, by the university of Calicut during the year 2011. Guide;Head of department; Miss. DIVYA RAJAN Prof. Dr. M. R. MADHAVAN NAMBIAR LECTURER HOD, civil engineering dept; Department of civil engineering AWH ENGINEERING COLLEGE AWH ENGINEERING COLLEGE ACKNOWLEDGEMENT We take this opportunity to express our sincere gratitude to Prof. We will write a custom essay sample on Partial Replacement of Cement with Marble Powder or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Dr. M. R. MADHAVAN NAMBIAR (the Head of CIVIL engineering dept;) and Miss. DIVYA RAJAN (Our guide for the project) for their constant encouragement, valuable suggestions and inspiration, which help us to optimize this project. We are thank full to BABU . S (staff in charge of mini project) for his kind co-operation. We also wish to express our deep thanks to Miss, ANUSHA . A (lab assistant, civil department) and all the teachers of civil engineering department for their whole hearted co-operation and moral support. Finally we convey thanks to our friends for installing us the strength and power required to fulfil any work extended to us. ABSTRACT Leaving the waste materials to the environment directly can cause environmental problem. Hence the reuse of waste material has been emphasized. Waste can be used to produce new products or can be used as admixtures so that natural resources are used more efficiently and the environment is protected from waste deposits. Marble stone industry generates both solid waste and stone slurry. Whereas solid waste results from the rejects at the mine sites or at the processing units, stone slurry is a semi liquid substance consisting of particles originating from the sawing and the polishing processes and water used to cool and lubricate the sawing and polishing machines. Stone slurry generated during processing corresponds to around 40% of the final product from stone industry. This is relevant because the stone industry presents an annual output of 68 million tonnes of processed products. These industrial wastes are dumped in the nearby land and the natural fertility of the soil is spoiled. Therefore the scientific and industrial community must commit towards more sustainable practices. There are several reuse and recycling solutions for this industrial by-product, both at an experimental phase and in practical applications. Keeping the above in view, cement is partially refilled with marble powder in concrete. Concrete blocks replaced with 5%, 10%, 15% 20%. Marble powder have been prepared and compared with standard blocks of conventional cement. These blocks are then tested for properties like compressive strength and tensile strength. The results obtained are quite encouraging. Compressive strength is within the average permissible compressive strength as per IS 2185 (Part1) 1979. As per IS 456 2000 the relation between compressive strength and tensile strength of the obtained result is between the permissible limits. It opens the door for further experimentation in the field of roads and high rise buildings. CONTENTS Acknowledgement1 Abstract 2 Content List of figures and tables Chapter -1 Introduction Chapter -2 objectives and scope of investigation (2. 1) objectives (2. 2) scope of investigation Chapter – 3 study Chapter 4 testing on physical properties of material (4. 1) setting time of cement (4. 2) fineness of cement (4. 3) specific gravity (4. 3a)specific gravity of cement (4. 3b) specific gravity of coarse aggregate (4. 3c)specific gravity of fine aggregate (4. 4) sieve analysis (4. 4a)sieve analysis of fine aggregate (4. 4 b) sieve analysis of coarse aggregate Chapter -5 mix design (5. 5) determination of cement content (5. 6) Determination of fine and coarse aggregate content (5. ) Mix proportion Chapter – 6 experimental procedure (6. 1) test for compressive strength of concrete (6. 2) test for tensile strength of concrete Chapter – 7 result and discussion (7. 4) discussion Chapter – 8 comparison with IS code Chapter – 9 conclusion Chapter – 10 reference LIST OF FIGURES AND TABLES; (4. 3. 1) Specific gravit y of coarse aggregate (4. 3. 2) specific gravity of fine aggregate (4. 4. 1) sieve analysis of fine aggregate (4. 4. 2) grading limit of fine aggregate (4. 4. 3) sieve analysis of coarse aggregate (4. 4. 4) particle size distribution curve (5. 1) design stipulation (5. 2) water cement ratio curve (5. ) approximation of sand and water content (5. 6. 1) entrapped air content (5. 6. 2) mix design (6. 1) casted cube and cylinder (7. 1) compressive strength 7 days (7. 2) compressive strength 28 days (7. 1. 1) graphical representation of compressive strength (7. 3. 1) tensile strength 7days (7. 3. 2) tensile strength 28 days (7. 3. 3) graphical representation of tensile strength Chapter 1; INTRODUCTION INFLUENCE OF MARBLE DUST AS PARTIAL REPLACEMENT OF CEMENT IN CONCRETE The advancement of concrete technology can reduce the consumption of natural resources and energy sources and lessen the burden of pollutants on environment. Presently large amounts of marble dust are generated in natural stone processing plants with an important impact on environment and humans. This project describes the feasibility of using the marble sludge dust in concrete production as partial replacement of cement. In INDIA, the marble and granite stone processing is one of the most thriving industry the effects if varying marble dust contents on the physical and mechanical properties of fresh and hardened concrete have been investigated. Slump and air content of fresh concrete and absorption and compressive strength of hardened concrete were also investigated. Test results show that this industrial bi product is capable of improving hardened concrete performance up to 10%, The compressive strength of concrete was measured for 7 , and 28 days. In order to evaluate the effects of marble dust on mechanical behaviour, many different mortar mixes were tested. Chapter 2; OBJECTIVES SCOPE OF INVESTIGATION; (2. 1)OBJECTIVES In this project our main objective is to study the influence of partial replacement of cement with marble powder , and to compare it with the compressive and tensile strength of ordinary M20 concrete. We are also trying to find the percentage of marble powder replaced in concrete that makes the strength of the concrete maximum. Nowadays marble powder has become a pollutant. So , by partially replacing cement with marble powder, we are proposing a method that can be of great use in reducing pollution to a great extent. (2. 2) SCOPE OF INVESTIGATION This study is confined to the utilisation of marble dust in place of cement for making concrete blocks. Properties like compressive strength and tensile strength are only studied and suitably is arrived by comparing it with specifications given in BUREAU OF INDIAN STANDARDS (B. I. S). Chapter – 3; STUDY We have referred various projects using marble powder conducted by different research institutions they are 1) In co- operation of marble sludge in industrial building Eco blocks or cement bricks formulation Producing eco blocks to be used in houses ‘building from marble sludge through maximum possible substitution of sludge for sand and other components of the mixed materials used in blocks manufacturing was investigated successfully. By, FAKHER J AUKOUR – THE HASHEMITE UNIVERSITY OF JORDAN 2) Feasibility study of manufacturing eco blocks concrete using sludge powder as raw material. The feasibility study of manufacturing eco blocks concrete using sludge powder as raw material. By , FAKHER J AUKOUR – THE HASHEMITE UNIVERSITY OF JORDAN Chapter – 4; TESTING ON PHYSICAL PROPERTIES OF MATERIALS GENERAL; Concrete blocks are being widely used nowadays. The performance of concrete depends on the quality and quantity of the ingredients such as cement, aggregates, sand, and water. Without the study of the properties of ingredients of concrete work in depth and range, the study of concrete is incomplete. Experimental investigations have been carried out to evaluate the physical and mechanical characteristics of all the aggregates to be used in the manufacture of concrete blocks. (4. 1) SETTING TIME OF CEMENT Initial setting time is the time elapsed between the moment that the water is added to cement to the time that the paste start losing plasticity. The final setting time is the time elapsed between the moment water is added to the cement, and the time When the paste has completely lost its plasticity and has attained sufficient fineness to resist certain definite pressure. Setting time is tested in vacate apparatus. Take 400 gm of cement paste with . 85P water by weight of cement. Where P is the standard consistency of cement. Start stop watch at a instant when the water is added to the cement. Fill the vicat mould with cement paste and smooth the surface of paste and lower the needle gently in contact surface test block. Repeat the process until the needle starts to pierce the block for about 5mm measure from bottom. That time between water added to cement and the needle falls to 5mm measure. IS SPECIFICATION For Portland Pozzuolana cement initial setting time should less than 30 minute and final setting time is not greater than 600 minute. INITIAL SETTING TIME = 34 minutes (4. 2) FINENESS TEST The fineness of cement has an important bearing on the rate of hydration and hence on the rate of gain of strength and also on the rate of evolution of heat. Fineness of cement offer great surface area and hence faster development of strength. Weigh accurately 100 gm of cement and place it on a IS sieve 90 micron. Break down the air set lump on the sample with fingers. Continuously sieve the sample for 15 minutes . Weigh the residue left on sieve. It is the fineness of cement IS SPECIFICATION Fineness shall not exceed 10% for ordinary cement. FINENESS MODULUS = 6% (4. 3 ) SPECIFIC GRAVITY Specific gravity is defined as the ratio between the weight of the given volume of solid to the weight of equal volume of water. (4. 3a ) SPECIFIC GRAVITY OF CEMENT (LE – CHATLIER FLASK) Specific gravity is defined as the ratio between the weight of the given volume of cement to the weight of equal volume of water. The test is done in LE- CHATLIER FLASK. The flask is filled with kerosene oil to appoint on stem between 0 and 1ml. Put 100 gm of cement in flask and note the rise of kerosene level in the flask. That is the specific gravity of cement. Weight of cement used= 60 gm Initial reading on flask = 0 ml Final reading on flask= 23 ml Specific gravity of cement= weight of cement used Weight of equal volume of water Specific gravity of cement = 2. 608 (4. 3 b) SPECIFIC GRAVITY OF COARSE AGGREGATE;- Specific gravity of coarse aggregate is found out by pyconometer method. Take the empty weight of pycnometerM1 , Add coarse aggregate into it about half of the bottle and note the weight M2. Then add water full above the coarse aggregate and note the weight M3. Empty the pycnometer bottle and fill it with water and weigh, that is M4. Using these observation find out specific gravity of coarse aggregate TABLE(4. 3. 1) SPECIFIC GRAVITY OF COARSE AGGREGATE SL NO | DETERMINATION| Gm| Gm| 1| Pycnometer (M1)| 458| 463| 2| Pycnometer + aggregate(M2)| 706| 666| 3| Pycnometer+ aggregate +water(M3)| 1405| 1385| 4| Pycnometer+ water (M4)| 1258| 1253| CALCULATIONS;- Specific gravity =(M2-M1) (M2-M1)-(M3-M4) (a) (706-458) = 2. 45 (706-458)-(1405-1258) (b) (666-463) = 2. 859 (666-463)-(1385-1253) Mean of these = 2. 66 Therefore, specific gravity of coarse aggregate = 2. 66 (4. 3 c) SPECIFIC GRAVITY OF FINE AGGREGATE;- Specific gravity of fine aggregate is found out by pyconometer method. Take the empty weight of pycnometerM1 , Add sand into it about half of the bottle and note the weight M2. Then add water full above the sand and note the weight M3. Then the pycnometer bottle is cleaned and take full of water and weight it ie M4. Using these observation find out specific gravity of fine aggregate TABLE( 4. 3. 2) SPECIFIC GRAVITY OF FINE AGGREGATE;- SL NO| Determination | Gm| Gm| 1| Pycnometer (M1)| 458. 10| 451| 2| Pycnometer + sand (half of bottle)(M2) | 676| 697| 3| Pycnometer+ sand + full of water (M3)| 1390| 1405| 4| Pycnometer + full of water (M4)| 1253| 1258| CALCULATIONS;- Specific gravity = (M2-M1) (M2-M1)-(M3-M4) a). (676-458. 10) = 2. 693 (676-458. 10)-(1390-1253) b) (697-451) = 2. 49 (697-451)-(1405-1258) Therefore, specific gravity of fine aggregate = 2. 59 (4. 4)SIEVE ANALYSIS;- The sieve analysis is conducted to determine the particle size distribution of sample aggregate which called gradation. The better grade, voids ratio is less and high workability of concrete. (4. 4 a)SIEVE ANALYSIS OF FINE AGGREGATE ;- IS sieve size 4. 75mm, 2. 36 mm, 1. 18mm, 600 micron, 300 micron , 150 micron, and 90 micron were taken, and placed in such a way that large sieve on the top. Take 100 gm of fine aggregate and put it in the top sieve then sieve about 5 minute and collect weight of sample retained in each sieve. From these observation find fineness modulus of fine aggregate. Quantity of sand = 1 Kg Time of sieving = 15 minutes TABLE (4. 4. 1) SIEVE ANALYSIS OF FINE AGGREGATE SL NO| SIEVE SIZE| WEIGHT RETAINED| %OF WEIGHT RETAINED| CUMULATIVE % RETAINED| CUMULATIVE % PASSING| 1| 40mm| 0| 0| 0| 100| 2| 20mm| 0| 0| 0| 100| 3| 10mm| 0| 0| 0| 100| 4| 4. 75| 0| 0| 0| 100| 5| 2. 36| 98| 9. 8| 9. 8| 90. 2| 6| 1. 18| 60| 6| 15. 8| 84. 2| 7| 600micron| 188| 18. 8| 34. 6| 65. 4| 8| 300micron| 397| 39. 7| 74. 3| 25. 7| 9| 150micron| 221| 22. 1| 96. 4| 3. 6| 10| 90micron| 21. 5| 2. 15| 98. 5| 1. 45| 11| L. P| 19. 5| 1. 95| 100| 0| Fineness modulus = 329. 4 100 = 3. 29% TABLE(4. 4. 2) GRADING LIMITS OF FINE AGGREGATE IS 383 1970 | Percentage passing by weight for| | GradingZone1| GradingZone2| Grading zone 3 | Grading zone 4| 10 mm| 100| 100| 100| 100| 4. 75mm| 90-100| 90-100| 90-100| 95-100| 2. 36mm| 60-95| 75-100| 85-100| 95-100| 1. 18mm| 30-70| 55-90| 75-100| 90-100| 600 micron| 15-34| 35-59| 60-79| 80-100| 300 micron| 5-20| 8-30| 12-40| 15-50| 150 micron| 0-10| 0-10| 0-10| 0-15| According to IS383 1970 the given fine aggregate belongs to zone 3 (4. 4. b)SIEVE ANALYSIS COARSE AGGREGATE;- For sieve analysis of coarse aggregate IS sieve NO; 40 mm, 20mm, 10mm, 4. 5mm, are used , and these sieves are arranged in such a way that large sieve is on the top. Take 4000gm of coarse aggregate and placed it on the top of the sieve . and sieved for 10 minutes using mechanical sieve. Then find out weight of retained on each sieve. Using these observation find out fineness modulus of coarse aggregate. Quantity of materials = 4 kg Time of sieving= 10 minutes TA BLE(4. 4. 3) SIEVE ANALYSIS COARSE AGGREGATE;- SL NO| Sieve size| Weight retained(gm)| %weight retained| Cumulative % weight retained| Cumulative %weight passing| 1| 40mm| 0| 0| 0| 100| 2| 20mm| 585. 0| 14. 625| 14. 5| 85. 375| 3| 10mm| 3260| 81. 5| 96. 12| 3. 88| 4| 4. 75mm| 155| 3. 875| 100| 0| 5| 2. 40mm| 0| 0| 100| 0| 6| 1. 18mm| 0| 0| 100| 0| 7| 600m| 0| 0| 100| 0| 8| 300m| 0| 0| 100| 0| 9| 150m| 0| 0| 100| 0| | | | | 710. 77| | Fineness modulus = 710. 77 100 = 7. 10% PARTICLE SIZE DISTRIBUTION CURVE FOR FINE AND COARSE AGGREGATE FIGURE (4. 4) From the graph the grading of fine and coarse aggregate is analysed Chapter 5 MIX DESIGN: Mix design for concrete was made using the properties of constituents of concrete. Grade of concrete was taken as M20 and the mix design was done as per IS:10262-1982 and IS:456-2000. The water cement ratio was taken as 0. 5 which should be the maximum for M20 grade under mild exposure condition . MIX DESIGN OF M 20 TABLE(5. 1) DESIGN STIPULATIONS SL NO| DESIGN STIPULATIONS| QUANTITY| 1| Characteristic compressive strength required in the field at 28 days| 20N/mm2| 2| Maximum size of aggregates| 20mm(angular)| 3| Degree of workability| 0. 90 (compacting factor)| 4| Degree of quality of control | Good | 5| Type of exposure| Mild| TABLE(5. 2) TEST DATA FOR MATERIAL SL NO| TEST DATA FOR MATERIAL| QUANTITY| 1| Cement used| Portland slag cement| 2| Specific gravity of cement| 2. 08| 3| Specific gravity of fine aggregate| 2. 59| 4| Specific gravity of coarse aggregate| 2. 66| 5| Water absorption of fine aggregate| Nil| | Water absorption of coarse aggregate| Nil| 7| Free moisture of fine aggregate| Nil| 8| Free moisture of coarse aggregate| Nil| 9| Sieve analysis of fine aggregate| Grade 3| TARGET MEAN STRENGTH FOR MIX DESIGN fck =fck +1. 65s fck =20+1. 654. 6 = 27. 59N /mm2 As per IS;10262-1982, FIG (5. 2) WATER CEMENT RATIO CURVE From the figure water cement ratio is . 5 TABLE (5. )APPROXIMATE SAND AND WATER CONTENT PER CUBIC METER OF CONCRETE FOR GRADES UPTO M35 Nominal maximumSize of aggregate(mm)| Water content perCubic meter of concrete(kg)| Sand as percent ofTotal aggregate byAbsolute volume| 10| 208| 40| 20| 186| 35| 40| 165| 30| From table 5. 3; Water content = 186 kg/m3 Sand content = 35% For change in value of water cement ratio, compacting factor and sand belonging to Zone 3 ,the following adjustment is required TABLE(5. 4) ADJUSTMENTS IN WATER CONTENT AND SAND CONTENT Therefore, required sand content as percentage of total aggregate by absolute volume = 35 3. 5 = 31. 5 % Required water content =186 + (186x 3) / 100 = 186 + 5. 58 =191. 6 litre /m3. (5. 5)DETERMINATION OF CEMENT CONTENT;- Water cement ratio = 0. 50 Water = 191. 61 Cement = 191. 6/0. 50 = 383 kg/m3 This cement content is adequate for mild exposure condition, according to Appendix A of IS ; 456-1978 . (5. 6)DETERMINATION OF COARSE AND FINE AGGREGATE CONTENT APPROXIMATE AIR CONTENT TABLE (5. 6. 1 )ENTRAPPED AIR NOMINAL MAXIMUM SIZEOF AGGREGATE| ENTRAPPED AIR AS PERCENTAGEOF VOLUME OF CONCRETE| 10| 3. 0| 20| 2. 0| 40| 1. 0| From table 5. 6 for the specified maximum size of 20mm , the amount of entrapped air in the wet concrete is 2%. Taking this into account and applying equations from 3. 5. 1 of IS ; 10262 -1982 Calculation of aggregate contentWith the quantities of water and cement per unit volume of concentric and the ratio of fine to total aggregate already determined, the total aggregate content per unit volume of concrete may be calculated from the following equations;V = [W + C/Sc + 1/ p . a/Sta ] x [1/1000], and V = [W + C/Sc + 1/(1-p) . Ca / Sca ] x [1/1000]Where,V= absolute volume of fresh concrete, which is equal to gross volume (m3) minus the volume of entrapped air. W= mass of water (kg) per m3 of concrete,Sc= specific gravity of cement,P= ratio of fine aggregate to total aggregate by absolute volume,fa ,Ca= total mass of the fine aggregate and coarse aggregate (kg) per m3 of co ncrete respectively, and Sfa , Sca = specific gravities of saturated surface dry fine aggregate and coarse aggregate respectively. Therefore, For fine aggregate ;- 0. 98 = [191. 58 + (383. 16/2. 608)+(1/0. 315) x (f a / 2. 59) ] x (1/1000) f a = 525. 82 For coarse aggregate ;- 0. 98 = [ 191. 58 + (383. 16/2. 608) + (1/(1-0. 315) x (Ca / 2. 83)] x (1/1000) Ca = 1139. 43 kg/m3 The mix proportions then becomes; TABLE (5. 6. 2) MIX DESIGN VOLUMES Volume of cube= 15 x 15 x 15 =3375cm3 Volume of cylinder= ? x 7. 52 x 30 =5301. 44cm3 Total volume= 8676. 44cm3 Add 10% extra volume = 9544. 084 Volume of concrete = (1 / 2. 602) + (1. 372 / 2. 59) + (2. 97 / 2. 6) + (0. 5 / 1) = 2. 529 Weight of cement = (1 / V) x volume = (1 / 2. 529) x 9544. 084) = 3. 77kg Weight of fine aggregate = 1. 372 x 3773. 85 = 5. 177 kg Weight of coarse aggregate = 2. 97 x 3773. 85 = 11. 208 kg Required amount of water = 0. 5 x 3773. 85 = 1886. 92 litre FOR TWO SPECIMEN Weight of cement = 7. 547 kg Weight of fine a ggregate = 10. 355 kg Weight of coarse aggregate= 22. 41 kg Required water= 3-77 litre (5. 7)MIX PROPORTIONS: Five concrete mixes with stone dust were produced, replacing 0%(reference mixture ), 5%,10%,15%,and 20%,Cement, in terms of weight. The concrete mix proportion for M20 grade was designed in accordance with I. S. code. QUANTITY OF MARBLE POWDER; 5% of cement replaced by marble powder = 377. 38gm 10% of marble powder = 754. 7 gm 15% of marble powder = 1. 13 kg 20 %of marble powder = 1. 5094 kg Chapter – 6; Experimental procedure: Compressive strength of concrete was undertaken on 15 x15x15cm specimens. at 7 days and 28 days of age. Regarding splitting tensile strength, cylinders with 30 cm of height and 15 cm of diameter were casted and tested at 28 days of age. All specimens were removed 48 hours after casting, and then transferred to regular conditions (interior of the laboratory ) till testing. (6. 1) TEST FOR COMPRESSIVE STRENGTH OF CONCRETE PROCEDURE 1. Cast the cube of size 150*150*150mm3 and specimen from the mould is placed in water tank at a temperature of 27+2 degree Celsius till the date of test. 2. Place the concrete cube on the testing machine in between the 2 plunger of the compressive testing machine. . Apply uniform continuous load at that rate of 14N/mm2. 4. Increase the load until the specimen splitter records maximum load required to split the cube. 5. Remove the load and take off the broken cube between the plunger. (6. 2) TEST FOR TENSILE STRENGTH OF CONCRETE PROCEDURE 1. Cast the cylinder of size150*300mm2 from the mix and cure for 28 days. 2. Test the specimen immediately after removing f rom water. 3. Diameter and length of the specimen shall be cantered along the centre of the plate. 4. Place the specimen on plywood strip aligned at the centre. 5. Place the second plywood strip length wise at the top of the cylinder. 6. Apply the load without shock and increase the load continuously at the rate of 1. 4 N/mm2 2. 1N/mm2. Figure (6. 1) CASTED CUBE AND CYLINDER Chapter – 7 RESULTS AND DISCUSSIONS; COMPRESSIVE STRENGTH Table (7. 1. 1)COMPRESSIVE STRENGTH 7 DAYS | 1| 2| Average| Compressive strength ( MPa)| 0%| 380| 340| 360| 16| 5%| 355| 405| 380| 16. 88| 10%| 390| 430| 410| 18. 22| 15%| 275| 325| 300| 13. 33| 20%| 290| 270| 280| 12. 44| Table (7. 1. 2)COMPRESSIVE STRENGTH 28 DAYS %| 1| 2| average| Compressive strength(MPa)| %| 535| 565| 550| 24. 40| 5%| 580| 620| 600| 26. 67| 10 %| 675| 645| 660| 29. 33| 15%| 470| 435| 452. 5| 20. 11| 20%| 420| 440| 420| 18. 67| Figure (7. 1. 1) GRAPHICAL REPRESENTATION OF COMPRESSIVE STRENGTH; From this graph compressive strength of concrete increases up to 10% replacement of cement with marble powder. There after compressive strength decreases. (7. 3)TENSILE STRENGTH; Table (7. 3. 1)TE NSILE STRENGTH7 DAYS % marble powder| Specimen 1 tensile load| Specimen 2 tensile load| Mean| Tensile strength (MPa)| 0%| 111| 129| 120| 1. 69| %| 130| 136| 133| 1. 88| 10%| 125| 151| 138| 1. 95| 15%| 100| 128| 114| 1. 61| 20%| 108| 84| 96| 1. 35| Table (7. 3. 2)TENSILE STRENGTH28 DAYS % marble powder | Specimen 1, tensile load| Specimen 2, tensile load| Mean| Tensile strength (MPa)| 0%| 170| 178| 174| 2. 461| 5%| 182| 185| 183. 5| 2. 59| 10%| 197| 201| 199| 2. 84| 15%| 165| 170| 167. 5| 2. 36| 20%| 141| 162| 151. 5| 2. 14| Figure (7. 3. 3)GRAPHICAL REPRESENTATION OF TENSILE STRENGTH; From the graph tensile strength of concrete increases up to 10% replacement of cement with marble powder. There after tensile strength decreases. (7. 4) DISCUSSION: Compression Test: Mechanical behaviour of concrete cubes prepared without chemical admixtures was studied by compressive tests (Grade M20and curing time of 7 days and 28 days. It can be noticed that 5% replacement of cement with marble dust in mild condition and 10% replacement of cement with marble dust in mild condition, are showing increase in compressive strength. Tensile Strength test; Mechanical behaviour of cylindrical specimens prepared without chemical admixtures was studied by tensile strength test. Grade M20),curing times of 7 days and 28 days and the results obtained are reported. It is noticed that 5% replacement of cement with marble dust in mild condition and 10% replacement of cement with marble dust in severe conditions, are showing increase in tensile strength. Chapter – 8; COMPARISON WITH IS CODE Table (8. 1)Physical requirements as per IS 2185 ( part 1) – 1979 TYPE| GRADE| DENSITY OF BLOCK(Kg / m3)| MINIMUM AVERAGE COMPRESSIVE STRENGTH OF UNITS (N / mm2)| MINIMUM STRENGTH OF INDIVIDUAL UNITS(N / mm2)| HOLLOW (OPEN AND CLOSED CAVITY) LOAD BEARING UNITS| A(3. )| NOT LESS THAN 1500| 3. 5| 2. 8| | A(4. 5)| | 4. 5| 3. 6| | A(5. 5)| | 5. 5| 4. 4| | A(1. 0)| | 7. 0| 5. 6| | B(2. 0)| LESS THAN 1500 BUT NOT LESS THAN 1000| 2. 0| 1. 6| | B(3. 0)| | 3. 0| 2. 4| | B(5. 0)| | 5. 0| 1. 0| HOLLOW (OPEN AND CLOSED CAVITY) NON LOAD BEARING UNITS| C(1. 5)| LESS THAN 1500 BUT NOT LESS THAN 1000| 1. 5| 1. 2| SOLID LOAD BEARING UNIT| D(5. 0)| NOT LESS THAN 1800| 5. 0| 4. 0| | D(4. 0)| | 4. 0| 3. 2| The average compressive strength obtained in this test is greater than the average compressive strength as per IS 2185 (part 1) – 1979. Hence the partial replacement of cement with marble powder is very effective in solid load bearing unit. Chapter 9 CONCLUSIONS: From our experiment it is proved that marble dust is very effective in assuring very good cohesiveness of mortar and concrete. it is concluded that the marble dust can be used as a replacement material for cement ; and 10% replacement of marble dust gives an excellent result in strength aspect and quality aspect and it is better than the conventional concrete. The results showed that the substitution of 10% of the cement content by marble stone dust induced higher compressive strength, higher splitting tensile strength, and improvement of properties related to durability. Test results show that this industrial waste is capable of improving hardened concrete performance up to 10%, enhancing fresh concrete behaviour and can be used in plain concrete. Chapter 10 REFERENCES: BOOKS 1) M. S. SHETTY – CONCRETE TECHNOLOGY 2) N. KRISHNA RAJU DESIGN OF CONCRETE MIXES IS CODES 1) IS 456 2000 2) IS 456 1978 3) IS 2185 (PART1) 1979 SITES 1) http://www. engineeringcivil. com 2) http://www. elsevier. com