Self-Compacting Concrete with Recycled Concrete Aggregate

Abstract

Increased demands for effective waste management technique and new technologies to tackle building-resources pulled out the researchers to concentrate the adoption of new methodologies. Structural applications used the RCA in SCC, ensuring strength and durability. In order to achieve this, RCA's effect on compressive strength for three different mixtures (30MPa, 50MPa & 70MPa) was tested with four grades of recycled cumulative replacements (0 % to 100%) with the intervals of 25%. Also included in the study is the variation of the curing period (28, 56 and 90days) to understand the role of mineral admixtures in inspecting cement content. Durability tests also conducted to explore the service life of each mix prepared by adding recycled aggregates. It was determined that recycled aggregate can be substituted up to 25 % for concrete of medium strength and 20 % for concrete of high strength not more than 10 percent lenience performance compared to concrete of natural aggregate.