Evaluation of compressive strength when using construction waste to replace construction sand in concrete

Abstract

The compressive strength of concrete is the destructive compressive stress of concrete, determined by concrete grades, is one of the most important indicators evaluating bearing capacity and durability of concrete in construction projects,… In this paper, the authors conducted experiments on three cubic sample sets: one cast from Tien River sand, one from crushed floor concrete waste and one from wall concrete waste. Through the experiment, the compressive strengths of the sample sets can be compared. The results show that concrete samples made from Tien River sand had the highest compressive strength value. Concrete samples made from crushed products from floor concrete had the smallest compressive strength value.