Paper Title:

Laboratory Evaluation of the Stress-Strain relationship of Permeable Concrete

Periodical Advanced Materials Research (Volumes 243 - 249)
Main Theme Advances in Civil Engineering and Architecture
Edited by Chaohe Chen, Yong Huang and Guangfan Li
Pages 3259-3262
DOI 10.4028/www.scientific.net/AMR.243-249.3259
Citation Manal Hussin et al., 2011, Advanced Materials Research, 243-249, 3259
Online since May 2011
Authors Manal Hussin, Zhu Ge Yan, Frank Bullen, Weena Lokuge
Keywords Frost Heaving and Melting Sedimentation, Manual Freezing Method, Metro Subway Tunnel, Model Test
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The authors conducted research aimed at developing a new type of permeable concrete material with enhanced structural strength. This paper presents and discusses the results of their investigation on the unaxial compressive stress-strain relationship of porous concrete made with two different mix designs with constant water to cement ratio. The concrete mixes were designed with a target compressive strength between 15-25 MPa and target porosity between 10-15% to study the effect of pore sizes on the stress-strain curve. The average pore space was increased by increasing the relative amount of large aggregate. The reduction in the relative amount of fine aggregate increased the average pore space and resulted in a reduction in mix stiffness and a marginal increase in ultimate strength.