@inproceedings{3b414f4b49d74d2c8db768724d51c2c1,
title = "Physical and mechanical properties of Recycled Aggregate concrete in southeast Queensland",
abstract = "Waste from construction and building demolition work constitutes about 40% of the total amount of industrial waste generated each year in Queensland. The use of Recycled Aggregate (RA) from concrete waste constitutes an important environmental and construction engineering issues. As RA with poor strength and high water absorption rate, RA is rarely used in manufacturing high-grade concrete applications, which only restricted for roadwork sub-base, low-grade pavements, retaining walls and footpaths. This paper presents results on compressive strength, indirect tensile strength, flexural strength and modulus of elasticity for Recycled Aggregate Concrete (RAC). A comparison with the results from Normal Aggregate Concrete (NAC) was found that the general trend in compressive strength, indirect tensile strength, and flexural strength are slightly decreased from 0% to 100% RA replacement in 7, 14 and 28 curing days. All concrete types achieved more than 40MPa on compressive strength and more than 4MPa on indirect tensile strength and flexural strength. This highlighted that RAC which replacing RA by natural aggregate on various percentages of replacement can achieve similar concrete quality.",
keywords = "Compressive strength, Flexural strength, Indirect tensile strength, Modulus of elasticity, Recycled aggregate, Recycled aggregate concrete",
author = "D. Kotrayothar and Tam, {Vivian W.Y.} and Loo, {Y. C.}",
year = "2007",
language = "English",
series = "Proceedings of the 1st International Conference on Recent Advances in Concrete Technology, RAC 2007",
publisher = "DEStech Publications Inc.",
pages = "607--614",
editor = "Amde, {Amde M.} and Sabnis, {Gajanan M.} and Tan, {John S. Y.}",
booktitle = "Proceedings of the 1st International Conference on Recent Advances in Concrete Technology, RAC 2007",
note = "1st International Conference on Recent Advances in Concrete Technology, RAC 2007 ; Conference date: 19-09-2007 Through 21-09-2007",
}
