Mechanism of effect of elevated temperature on compressive strength of cement mortar

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Status	已發表Published
	Mechanism of effect of elevated temperature on compressive strength of cement mortar
	Li Q.-H.1; Yao Y.1; Sun B.1; Li Z.-J.2
	2008-12-01
Source Publication	Jianzhu Cailiao Xuebao/Journal of Building Materials
ISSN	10079629
Volume	11 Issue:6 Pages:699-703
Abstract	Compressive strength of cement mortar was studied from room temperature to 550°C with cement paste and different fine aggregate content. The result shows that development of compressive strength of cement or cement mortar with same m(C)/m(S) is divided into three stages: compressive strength increases to some extent when cement or cement mortar with m(C)/m(S)>1/3, but compressive strength decreases to some extent when m(C)/m(S)<1/3 in the first stage(room temperature to 150 °C); compressive strength changes gently in the second stage(150~180 °C); compressive strength decreases significantly in the third stage(180~550 °C). And compressive strength of cement mortar decreases with fine aggregate content increasing in the same temperature. Through the analyst of DSC, XRD and thermal expansion behavior measurement the mechanism how compressive strength changes with temperature is proposed.
Keyword	Cement mortar Compressive strength Elevated temperature Mechanism
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via Scopus
Document Type	Journal article
Collection	University of Macau
Affiliation	1.China Building Materials Academy 2.Hong Kong University of Science and Technology
Recommended Citation GB/T 7714	Li Q.-H.,Yao Y.,Sun B.,et al. Mechanism of effect of elevated temperature on compressive strength of cement mortar[J]. Jianzhu Cailiao Xuebao/Journal of Building Materials, 2008, 11(6), 699-703.
APA	Li Q.-H.., Yao Y.., Sun B.., & Li Z.-J. (2008). Mechanism of effect of elevated temperature on compressive strength of cement mortar. Jianzhu Cailiao Xuebao/Journal of Building Materials, 11(6), 699-703.
MLA	Li Q.-H.,et al."Mechanism of effect of elevated temperature on compressive strength of cement mortar".Jianzhu Cailiao Xuebao/Journal of Building Materials 11.6(2008):699-703.

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