Effect of lightweight aggregates on the mechanical properties and brittleness of lightweight aggregate concrete

H. Z. Cui; Tommy Yiu Lo; Shazim Ali Memon; Weiting Xu

doi:10.1016/j.conbuildmat.2012.02.053

Author(s)

H. Z. Cui
Tommy Yiu Lo
Shazim Ali Memon
Weiting Xu

Detail(s)

Original language	English
Pages (from-to)	149-158
Journal / Publication	Construction and Building Materials
Volume	35
Publication status	Published - Oct 2012

Link(s)

DOI	DOI https://doi.org/10.1016/j.conbuildmat.2012.02.053 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84859631536&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(641b8f23-aacb-4c3b-80bb-a98e8c2280f1).html

Abstract

The influence of volume fraction and aggregate properties on the mechanical performance of lightweight aggregate concrete (LWAC) were studied. A new Shape Index that described the shape characteristics of lightweight aggregate (LWA) has been proposed and its effects on resulting LWAC were evaluated. Test results substantiate that the proposed Shape Index had a great influence on the mechanical properties of LWAC. Crack development, failure characteristics and stress strain curves of LWAC were studied and the concept of the proportional strain ratio was introduced to evaluate the brittleness of LWAC. Test results showed that higher volume content of LWA resulted in a more brittle failure. It was also found out that for similar concrete strengths, LWAC was comparatively brittle than normal weight concrete (NWC). © 2012 Elsevier Ltd. All rights reserved.

Research Area(s)

Compressive strength, Lightweight aggregate concrete, Proportional strain ratio, Shape Index, Young's modulus

Citation Format(s)

[ RIS ] [ BibTeX ]

Effect of lightweight aggregates on the mechanical properties and brittleness of lightweight aggregate concrete. / Cui, H. Z.; Lo, Tommy Yiu; Memon, Shazim Ali et al.
In: Construction and Building Materials, Vol. 35, 10.2012, p. 149-158.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Cui, HZ, Lo, TY, Memon, SA & Xu, W 2012, 'Effect of lightweight aggregates on the mechanical properties and brittleness of lightweight aggregate concrete', Construction and Building Materials, vol. 35, pp. 149-158. https://doi.org/10.1016/j.conbuildmat.2012.02.053

Cui, H. Z., Lo, T. Y., Memon, S. A., & Xu, W. (2012). Effect of lightweight aggregates on the mechanical properties and brittleness of lightweight aggregate concrete. Construction and Building Materials, 35, 149-158. https://doi.org/10.1016/j.conbuildmat.2012.02.053

Cui HZ, Lo TY, Memon SA, Xu W. Effect of lightweight aggregates on the mechanical properties and brittleness of lightweight aggregate concrete. Construction and Building Materials. 2012 Oct;35:149-158. doi: 10.1016/j.conbuildmat.2012.02.053

Cui, H. Z. ; Lo, Tommy Yiu ; Memon, Shazim Ali et al. / Effect of lightweight aggregates on the mechanical properties and brittleness of lightweight aggregate concrete. In: Construction and Building Materials. 2012 ; Vol. 35. pp. 149-158.