期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 110, 期 -, 页码 89-97出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.02.014
关键词
Pervious concrete; Recycled aggregate; Mechanical properties; Titanium dioxide; Permeability; Modeling
The objective of this work was to characterize the mechanical, physical, and hydraulic conductivity properties of macroporous (>30% voids) pervious concrete (MPC) containing recycled aggregates and two binder additives, namely sand and titanium dioxide (TiO2). While MPC exhibited lower compressive strength and higher permeability than normal pervious concrete, the experimental data suggest that the high absorption and low specific gravity of recycled aggregates did not compromise the mechanical properties or permeability of MPC. A modification to the well-known Carman-Kozeny hydraulic conductivity model is proposed to more accurately predict the permeability of both normal and macroporous pervious concrete. (C) 2016 Elsevier Ltd. All rights reserved.
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