Effect of Curing Types on Compressive Strength of Recycled Aggregates Concrete

Abstract

In this research article, we analyze the effect of curing methods on compressive strength of recycled aggregatesconcrete prepared with 50% replacement of natural coarse aggregates as well as coarse aggregates from demolishingwaste. We prepare 30 standard size cubes in six batches. In all batches 1:2:4 mix with 0.45 water cement ratiois used. One batch of the cubes is casted with all conventional aggregates. Five curing methods, i.e., water, air,gunny bags, steam and waste water are used to cure the specimens for 28 days. Our compressive strength resultsshow that curing by gunny bags gives better strength results and helps in strength improvement of the recycledaggregate concrete. It is further observed that the compressive strength of the proposed specimens with gunny bagsincreases by 1.67% in comparison with compressive strength of conventional concrete specimens. Our experimentalstudy shows that the use of demolished waste as coarse aggregates in new concrete along with appropriate curingmethod has promising results in terms of compressive strength.