The effect of titanium dioxide addition on the hydraulic and mechanical properties of permeable concrete

Bolt, Jason and Zhuge, Yan and Bullen, Frank (2011) The effect of titanium dioxide addition on the hydraulic and mechanical properties of permeable concrete. In: 25th Biennial Conference of the Concrete Institute of Australia (Concrete 2011): Building a Sustainable Future, 12-14 Oct 2011, Perth, Australia.

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Abstract

Urban environments create large catchment areas for storm water runoff. This has a major impact on the water quality, the health of the environment and the natural ecosystem. During storms, large volumes of water are channeled into streams and rivers, creating flood control and erosion problems further downstream. As population density increases, so does the need for costly engineered water control systems that can take up valuable land area. Pollution from rainwater runoff is another concern, especially in urban areas. A sustainable solution to this problem is to use permeable pavements. Permeable concrete has long been considered an ideal alternative for harnessing storm water in urban environments, where low strength concrete can be applied. The interconnecting voids of permeable concrete greatly reduce its compressive strength and therefore, its applications. However, it is these interconnecting pores which create the permeability of the concrete that allows water to pass through, which can then be harnessed and used. Research has shown that photocatalytic construction materials are able to degrade pollutants in areas of; air pollution, water purification, anti-bacterial effect and self cleaning. The incorporation of photocatalytic cement to permeable concrete is a new concept and little research is currently available. This paper presents a laboratory testing program which investigates the hydraulic and mechanical effect of the addition of titanium dioxide to permeable concrete.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2011 Concrete Institute of Australia. Permanent restricted access to published version due to publisher copyright policy.
Depositing User: Dr Yan Zhuge
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 26 Mar 2012 01:35
Last Modified: 02 Dec 2014 06:17
Uncontrolled Keywords: permeable concrete; photocatalyts; titanium dioxide; permeability
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective (SEO2008): B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials
URI: http://eprints.usq.edu.au/id/eprint/20510

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