Comparing the Compressive Strengths of Guanapo Recycled Aggregate Concrete with that of its Waste Material.

Published in: Megaprojects: Building Infrastructure by Fostering Engineering Collaboration, Efficient and Effective Integration and Innovative Planning: Proceedings of the 10th Latin American and Caribbean Conference for Engineering and Technology
Date of Conference: July 23-25, 2012
Location of Conference: Panama City, Panama
Authors: Jason R.F. Lalla
Abrahams Mwasha
Refereed Paper: #112

Abstract

As part of the results of an investigation to determine and compare the compressive and splitting tensile strength parameters of concrete manufactured using natural and recycled Guanapo coarse and fine aggregates, this paper is a continuation of the results presented in a paper by Lalla & Mwasha (2011) and is intended to highlight the result of comparisons of compressive strengths of recycled aggregate concrete (RAC) and its source material. Compressive strength testing was conducted according to ASTM C39 and correlations on the data obtained from testing were determined using the one way ANOVA statistical method. The results of this portion of the study show that it is indeed a viable option to use recycled Guanapo aggregates as a suitable substitute to natural aggregate and that waste material from construction demolition waste (CDW) can easily be recycled to produce concrete of comparable properties to that of its source waste material.