The use of recycled concrete aggregate in structural concrete around South East Queensland

Chiu, Kwong Man Karen (2006) The use of recycled concrete aggregate in structural concrete around South East Queensland. [USQ Project]


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This study aims to develop the best economic solution by use of recycled aggregate in
structural concrete to reduce the environmental impact around South East Queensland.
Therefore, the objective of this project is to investigate the hardness properties of Recycled
Concrete Aggregate including slump, density, compressive strength, tensile strength, modulus
of elasticity and drying shrinkage. This is also to determine the durability and permeability,
quality and cleanliness that are suitable for application in high strength concrete up to 60MPa
compared with 100% natural aggregate from the pits around South East Queensland which is
provided from local companies.
To determining the above properties of the recycled aggregate by studying the influence of
100 percent recycled aggregate in concrete. The Laboratory trials were conducted to
investigate the possibility of using 100 percent of recycled aggregate (20mm, 14mm and
10mm) with 25 percent of fly ash (low volume of 20% fly ash is minimum requirement by
MainRoads specifications) to replace part of the cement in concrete, compared with natural
The project has also researched the costs for what is the most economical solution to making
recycled aggregate for high quality concrete around South East Queensland by consulting
with the local technical specialists and related firms to broadening the RCA use for structural
concrete in the concrete industry in Australia.

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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering (Up to 30 Jun 2013)
Date Deposited: 11 Oct 2007 01:05
Last Modified: 02 Jul 2013 22:44
Uncontrolled Keywords: recycled concrete; south east queensland; recycle
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401699 Materials engineering not elsewhere classified
40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials

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