ABSTRACT
Concrete is the major component of construction industries used extensively as a building material. Cement is one of the basic component of concrete used as binding material. With the increasing demand of concrete demand of cement is also increasing throughout the world. The production of cement is accompanied with huge energy consumption and emission of harmful gases that results in environmental pollution. In order to overcome these problems, it is necessary to reduce the use of cement in concrete by its partial replacement by some supplementary cement products. Based on recent researches and studies it has been observed that the use of metakaolin as a supplementary cementing material in concrete improves not only the properties of concrete but also reduces the environmental pollution. Metakaolin react with Ca(OH)2 and convert into CSH gel which result in improve the strength properties. This paper reviews the use of metakaolin as a supplementary cementing material in concrete. The paper incorporates detailed literature investigation based on the topic and detailed here.
