Comparison of carbonation of lightweight concrete with normal weight concrete at similar strength levels

T. Y. Lo; W. C. Tang; A. Nadeem

doi:10.1016/j.conbuildmat.2007.06.006

Author(s)

T. Y. Lo
W. C. Tang
A. Nadeem

Detail(s)

Original language	English
Pages (from-to)	1648-1655
Journal / Publication	Construction and Building Materials
Volume	22
Issue number	8
Publication status	Published - Aug 2008

Link(s)

DOI	DOI https://doi.org/10.1016/j.conbuildmat.2007.06.006 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-43549125506&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(7d4ab53f-8e77-4a7e-866a-2e5987e6a05e).html

Abstract

This paper presents a study on accelerated carbonation testing of normal weight concrete (NWC) and lightweight concrete (LWC) mixes proportioned for three levels of strength grades. Two types of curing regimes were applied; (1) hot curing in water at 60 °C for 3 days and (2) normal curing in water at 27 °C for 28 days. Pulverized fuel ash (PFA) at 25% and silica fume (SF) at 5% and 10% replacement of ordinary Portland cement (OPC) in concrete were utilized to blend binary and ternary mixes in addition to OPC mixes. The results indicated that the effect of hot water curing on compressive strength development was more prominent in PFA/SF incorporated mixes than OPC mixes. The carbonation of LWC mixes was lower than NWC mixes at similar strength levels. The mixes with 25% PFA had marginally higher carbonation than OPC mixes under both hot and normal curing. The incorporation of SF in concrete mixes also increased the carbonation. Mixes under hot water curing had higher carbonation than mixes under normal curing. © 2007 Elsevier Ltd. All rights reserved.

Research Area(s)

Carbonation, Fly ash, High temperature curing, Lightweight concrete, Silica fume

Citation Format(s)

[ RIS ] [ BibTeX ]

Comparison of carbonation of lightweight concrete with normal weight concrete at similar strength levels. / Lo, T. Y.; Tang, W. C.; Nadeem, A.
In: Construction and Building Materials, Vol. 22, No. 8, 08.2008, p. 1648-1655.

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

Lo, TY, Tang, WC & Nadeem, A 2008, 'Comparison of carbonation of lightweight concrete with normal weight concrete at similar strength levels', Construction and Building Materials, vol. 22, no. 8, pp. 1648-1655. https://doi.org/10.1016/j.conbuildmat.2007.06.006

Lo, T. Y., Tang, W. C., & Nadeem, A. (2008). Comparison of carbonation of lightweight concrete with normal weight concrete at similar strength levels. Construction and Building Materials, 22(8), 1648-1655. https://doi.org/10.1016/j.conbuildmat.2007.06.006

Lo TY, Tang WC, Nadeem A. Comparison of carbonation of lightweight concrete with normal weight concrete at similar strength levels. Construction and Building Materials. 2008 Aug;22(8):1648-1655. doi: 10.1016/j.conbuildmat.2007.06.006

Lo, T. Y. ; Tang, W. C. ; Nadeem, A. / Comparison of carbonation of lightweight concrete with normal weight concrete at similar strength levels. In: Construction and Building Materials. 2008 ; Vol. 22, No. 8. pp. 1648-1655.