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：2017
卷号：6
期号：5
页码：7942
DOI：10.15680/IJIRSET.2017.0605085
出版社：S&S Publications
摘要：The concrete is being used as 2nd most essential material in the world and most of the companies are inneed of economical concrete by replacing cement by cementitious material. This papers show the preparation ofconcrete using granite powder as a partial fine aggregates at a rate of 0%, 5%, 10%, 15%, 20% and 25% and cement isreplaced using 10% fly ash used too. The beams of size 900mmX150mmX150mm are casted of M40 with w/c ratio0.42 and cured for a curing period of 7, 14, and 28 days. The test results shows increase in flexure strength till 20% ofgranite powder replacement and rest are equal to normal concrete. Thus, Granite Powder acts as a best replacement tonatural sand till 25%.It was observed that substitution of 7.5% of cement by weight with Granite fines in concrete resulted in anincrease in compressive strength for both 7 & 28 days to 33.14 & 43.40 N/mm2 compared to 23.26 & 39.41 N/mm2 ofconventional concrete. Tensile strength too followed a similar pattern with a 7.5% substitution with granite finesincreasing the tensile strength for 7 & 28 days to 2.87 &4.19 N/mm2 compared with a 2.4 & 3.4 N/mm2 ofconventional concrete. However flexure strength of 7.5% granite fine replacement exhibited a good improvement offlexural strength for 28 days to 6.34 N/mm2 compared to a 3.35 N/mm2 of conventional concrete. Furtherinvestigations revealed that to attain the same strength of conventional concrete a 10% substitution with granite fines iseffective.
