The use of glass to optimize bitumen absorption of hot mix asphalt containing recycled construction aggregates

Farzaneh Tahmoorian; Bijan Samali; John Yeaman; Russell Crabb

The use of glass to optimize bitumen absorption of hot mix asphalt containing recycled construction aggregates

Farzaneh Tahmoorian, Bijan Samali, John Yeaman, Russell Crabb

Western Sydney University

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Asphalt mixtures containing recycled construction aggregates (RCA) have the problem of high bitumen absorption. This paper characterizes the effects of glass on the bitumen absorption and volumetric properties of asphalt mixtures containing 25% and 50% RCA through laboratory investigation. The materials used in the test program include C320 bitumen, RCA and recycled glass. Three glass contents of 0%, 10%, and 20% in terms of the total weight of fine aggregates are used in the mixture designs for preparing 100 mm diameter specimens containing 0%, 25% and 50% RCA, under 120 gyration cycles. Different types of tests including aggregate specification tests and volumetric analysis tests were conducted on individual aggregates and asphalt mixtures in accordance with Australian standards. The test results indicate that the glass waste can be a viable material for improving the problem of high bitumen absorption of asphalt mixtures containing RCA.

Original language	English
Article number	1053
Number of pages	25
Journal	Materials
Volume	11
Issue number	7
Publication status	Published - 21 Jun 2018

Bibliographical note

Publisher Copyright:
© 2018 by the authors.

Open Access - Access Right Statement

© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

Keywords

asphalt
bitumen
glass

Cite this

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AB - Asphalt mixtures containing recycled construction aggregates (RCA) have the problem of high bitumen absorption. This paper characterizes the effects of glass on the bitumen absorption and volumetric properties of asphalt mixtures containing 25% and 50% RCA through laboratory investigation. The materials used in the test program include C320 bitumen, RCA and recycled glass. Three glass contents of 0%, 10%, and 20% in terms of the total weight of fine aggregates are used in the mixture designs for preparing 100 mm diameter specimens containing 0%, 25% and 50% RCA, under 120 gyration cycles. Different types of tests including aggregate specification tests and volumetric analysis tests were conducted on individual aggregates and asphalt mixtures in accordance with Australian standards. The test results indicate that the glass waste can be a viable material for improving the problem of high bitumen absorption of asphalt mixtures containing RCA.

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KW - glass

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The use of glass to optimize bitumen absorption of hot mix asphalt containing recycled construction aggregates

Abstract

Bibliographical note

Open Access - Access Right Statement

Keywords

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