2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

Mechanical and Durability Properties of Rubberized Recycled Aggregate Concrete

Mrs. Humera Ahmed, The University of British Columbia, Okanagan (Presenter)
Dr. Shahria Alam, University of British Columbia
Mr. M. Tiznobaik, University of Manitoba

Recycled concrete aggregate as a construction material is being researched for many years and as a result, many standards have accepted it as a partial or full replacement of natural aggregate (coarse and fine) in the production of structural and nonstructural concrete. On the other hand, use of crumb rubber (recycled rubber) as substitution of fine aggregate has also been studied by many researchers. The aim of this paper is to study the mechanical and durability properties of rubberized recycled aggregate concrete. Mechanical properties: compressive, tensile and flexural strength were investigated along with its stress-strain behavior under uniaxial compression. Durability properties were analyzed for its resistance to chloride ion ingress and freeze-thaw. In this paper, three replacements levels of recycled concrete coarse aggregate (0%, 50%, and 100%), three of crumb rubber (0%, 10%, and 20%), and 0.1% of steel tire fibers were considered. Overall, this study demonstrates the potential of using the rubberized recycled aggregate concrete and to enhance its acceptability as sustainable construction material.