The performance of recycled and quarry aggregates and their effect on permeable concrete

Zhuge, Yan (2013) The performance of recycled and quarry aggregates and their effect on permeable concrete. In: Concrete 2013: Understanding Concrete, 16-18 Oct 2013, Gold Coast, Australia.

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Abstract

In this paper, the results of a series laboratory testing which have been conducted to evaluate the structural strength and permeability/porosity of various mixture designs of permeable concrete basecourse and surface materials have been discussed. In Australia, concrete demolition discharges solid waste to the region in extremely large quantities. To utilise various waste materials in concrete, both low-grade recycled aggregate and four different types of quarry aggregate were used in the research. The tests performed include unconfined compression, porosity and permeability tests. It was found that the compressive strength of low-grade recycled aggregate was much lower than quarry aggregate and the admixtures such as silica fume which could enhance the strength of cement paste binder will have no effect on low-grade recycled aggregate due to failure was dominated by aggregate itself. A mathematical model to predict the compressive strength of permeable concrete made with recycled aggregate was developed and compared with those made with quarry aggregates.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: (c) 2013 The Author(s)1. The Author assigns to the Concrete Institute of Australia the copyright to the Contribution named above whereby the Institute shall have the right to publish the said Contribution in the Concrete2013 Conference Proceedings. 2. The Author retains the right to republish the Contribution without a request for permission from the Concrete Institute of Australia.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 13 Jan 2014 05:53
Last Modified: 01 Sep 2016 04:31
Uncontrolled Keywords: recycled materials; strength; strain; water resistance; porous surface; fluids
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0907 Environmental Engineering > 090703 Environmental Technologies
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials
URI: http://eprints.usq.edu.au/id/eprint/24288

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