Investigating the Feasibility of Using Post Consumer Aggregates in Concrete Mix

Title: Investigating the Feasibility of Using Post Consumer Aggregates in Concrete Mix
Author(s): Bahman NORUZIAAN, Cody BUSKELL
Paper category : conference
Book title: 2nd International Conference on Waste Engineering and Management - ICWEM 2010
Editor(s): J.Zh. Xiao, Y. Zhang, M.S. Cheung and Reuben P. K. Chu
Print-ISBN: 978-2-35158-102-5
e-ISBN: 978-2-35158-103-2
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 368 - 377
Total Pages: 10
Nb references: 1
Language: English

Abstract: A series of experiments were conducted in order to measure the impact of replacing portions of fine aggregates with post consumer glass particles, rubber crumbs from vehicle tires as well as glass fibers; on the performance of concrete. Cylindrical specimens were cast and tested for compressive and split cylinder tensile strength. About half of the cylinders were subjected to a number of freeze-thaw cycles in an environment chamber. The glass concrete showed strengths close to the virgin concrete before being subjected to freeze thaw cycles.
The rubber concrete showed about 50% reduction in compressive strength. Freeze thaw cycles had severe effects on some of the specimens. The specimens with the higher percentage of glass particles and those containing rubber crumbs showed visible signs of deterioration and disintegration. The more the content of rubber the more severe was the effects of freeze thaw cycles. Concrete containing 1% in volume of post consumer glass fibers showed strengths that were relatively close to virgin concrete. Increasing the glass fiber content to 5% reduced the workability and strength substantially. Samples that experienced cycles of freeze thaw, showed very visible signs of deterioration. Rubber concrete had substantially lower modulus of elasticity than other concrete samples.

Online publication: 2011-01-25
Publication type : full_text
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