Go Green by “Cement less Technology in Construction Industry”: A Review.

This review paper deals with, Limestone Calcined Clay Cement (LC3) which contains as tiny as half clinker by utilizing calcined clay and limestone. The generation of clinkers is the fundamental cause of CO2 emission, LC3 is the new technology used to reduce the clinker factor by replacing it up to 50%. The usage of supplementary materials will be greater advantage to reduce CO2 emission, therefore the major part of utilizing limestone and calcined clay because it is abundantly available and economically viable. LC3 can be substituted for clinker which has similar mechanical properties and will increase durability, therefore the use of limestone and calcined clay with these will blends and control both the cost and environmental impacts. The refinement limit will reach faster with higher calcined content, slowly the formation of carbo-aluminate hydrates will get limited after it reaches its refinement limit. Here, the use of LC3 as supplementary material, gives equal strength which is similar to Ordinary Portland Cement (OPC), therefore to attain the greater strength the use of high range of clay isn't necessary, here the initial setting time of LC3 get delays when compared to OPC. Generally, the use of limestone above 15% is entirely limited in the development field but in different nations, it can be permitted up to 35% according to the temperature condition of the field. In this context, the goal is to study about why LC3, the use of LC3 as supplementary and described about the properties of limestone and calcined clay. [ABSTRACT FROM AUTHOR]