A Review on to Investigate Self Curing Concrete using PEG-400

Abstract

Concrete is the most rapidly used material in the construction industry. It comprise of cement, sand and aggregate which hardens when mixed with water within certain time. It is most important to gain structural strength. To attain its properties sufficient curing is required if curing need in not met it lacks durability resulting in shrinkage cracks. During curing a lot of water is wasted and since we are identifying water shortage is mounting day by day. On an average 12000litres of water is needed to cure 1000sqft concrete surface one time. So a research should be needed to do the constructions with minimum use of water. The use of self curing admixtures may be very crucial as saving of water is a need of the hour. An approach is taken to reduce the water requirement during curing and at the same time to increase its strength as compared to the conventional concrete. To meet this requirement self curing agent polyethyleneglycol-400 is been used as 0.5%, 1% & 2% by the weight of the cement. As it is water soluble it can be used with water in mixing process. This agent will lessen the water disappearance from concrete by locking water content forming a thin layer of film over it thus maintaining internal hydration of concrete. The goal of this investigation is to study the mechanical properties of the self curing concrete over conventional concrete.