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：10
页码：19953
DOI：10.15680/IJIRSET.2017.0610139
出版社：S&S Publications
摘要：In this paper, the impact of Metakaolin (MK) on mechanical properties of hardened concrete isexamined. Metakaolin can be utilized as a solid constituent, since it also constitute some level of pozzolanic properties.In this investigation, blending of Metakaolin with different percentage of 6%, 7% and 8% have been adopted for M 25grade of concrete. In order to achieve a desired workability (75-100 mm slump value), despite of choosing a lower w/cratio (w/c ratio = 0.45), super plasticizer (SP) of 0.7 % (by weight of cement) has been added in the mix. Depending onthe various parameters adopted during experimental programme, testing for mechanical properties of concrete has beencarried out. The results obtained for different strength parameters (compressive strength, split tensile and flexurestrength) for hardened concrete shows a considerable increase in strength parameters for 28 days of curing lying inrange of 4 - 6 % at an optimum percentage of 8 % addition of MK. A least effect on split tensile has been observed withthe addition of Metakaolin in the concrete. This approach of waste utilization in the concrete thereby reduces thehazardous effect of cement on the environment as well as leading to a cost effective production of concrete. However,the present study also opens a door for more advanced research towards assessing the effect of Metakaolin on theproperties of concrete when used in with other waste materials up to a higher degree of blending.
关键词：Metakaolin; Compressive Strength; Split Tensile Strength; and Flexure Strength.
