标题：Experimental Study on Strength Characteristics of M25 Concrete with Partial Replacement of coarse aggregate with coconut shell and cement with Fly Ash
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：6
页码：4373
DOI：10.15680/IJIRSET.2015.0406114
出版社：S&S Publications
摘要：Today, disposal of waste material is a great problem and it becomes difficult to find natural resourcesdue to their excessive exploitation. Use of waste materials as construction materials has numerous benefits such asreduction in cost, saving in energy, and protection of environment. coconut shell is a waste material which can be asubstitute for aggregate. So, the main objective of this project is to encourage the use of coconut shell as a constructionmaterial and to prepare lightweight concrete by using coconut shell as coarse aggregate. In this project, experimentalstudy has been done on strength characteristics of M25 concrete with replacement of 10%,20% and 30% of coarseaggregate by coconut shell .Also an attempt has been made to examine the suitability of replacing the 20% of fly ashwith cement and simultaneously by replacing 10%,20% and 30% of coconut shell as coarse aggregate for concrete ofgrade M25.The proportion used in this study is 1:1.48:2.99 and water cement ratio is 0.44.Cubes,Cylinders and Beamswere casted and their compressive, tensile and flexural strength of concrete and workability was evaluated at 7,14,28days and also the results were compared for both replacement. The strength of concrete decreased as the percentage ofreplacement of the conventional material increased.
