STRENGHT AND DURABILITY ASPECTS OF RECYCLED AGGREGATE CONCRETE

S. Gangaram, V. Bhikshma, M. Janardhana

Abstract: The increasing difficulty in securing natural coarse and fine aggregates for the production of concrete coupled with the environmental issues and unlimited extraction of natural aggregates makes the usage of recycled aggregate concrete (RAC) is the prime importance to protect the planets future. However the full use of the material can be justified only through structural applications. Engineers are reluctant to use RCA in structural applications due to lack of design information. In this article, attempt has been made to investigate the strength and durability aspects of Recycled Aggregate Concrete (RAC). Basic characteristics of recycled aggregates were determined in the laboratory. Concrete of M20, M30, and M40, M50, M60 and M70 grades were designed. The properties of fresh and hardened recycled aggregate concrete were evaluated. The results of compressive strength test, split tensile strength, flexural strength, and permeability tests are presented in this paper

Keywords: Sustainable Buildings, durability, Recycled Aggregates, Structural Design, Design Codes, Compressive strength, flexural strength, splitting tensile strength.

DOI: https://doi.org/10.15623/ijret.2015.0425004