Reversible decrease of the flexural dynamic modulus of cement pastes upon heating

Xuli Fu; D. D.L. Chung

doi:10.1016/S0008-8846(97)00071-9

Reversible decrease of the flexural dynamic modulus of cement pastes upon heating

Xuli Fu
, D. D.L. Chung

Department of Mechanical and Aerospace Engineering

SUNY Buffalo

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

4 Scopus citations

Abstract

The flexural storage modulus was found to decrease gradually and reversibly with increasing temperature from 30 to 150°C for cement pastes. Among the admixtures used (latex, methylcellulose and silica fume), silica fume (15% by weight of cement) gave the highest flexural storage modulus at all temperatures (30-150°C), but also the greatest fractional decrease in modulus upon heating. Methylcellulose (0.4% by weight of cement) gave higher modulus than latex (20-30% by weight of cement). The modulus increased with increasing latex/cement ratio. Cement paste without admixture gave the lowest modulus.

Original language	English
Pages (from-to)	839-844
Number of pages	6
Journal	Cement and Concrete Research
Volume	27
Issue number	6
DOIs	https://doi.org/10.1016/S0008-8846(97)00071-9
State	Published - Jun 1997

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title = "Reversible decrease of the flexural dynamic modulus of cement pastes upon heating",

abstract = "The flexural storage modulus was found to decrease gradually and reversibly with increasing temperature from 30 to 150°C for cement pastes. Among the admixtures used (latex, methylcellulose and silica fume), silica fume (15\% by weight of cement) gave the highest flexural storage modulus at all temperatures (30-150°C), but also the greatest fractional decrease in modulus upon heating. Methylcellulose (0.4\% by weight of cement) gave higher modulus than latex (20-30\% by weight of cement). The modulus increased with increasing latex/cement ratio. Cement paste without admixture gave the lowest modulus.",

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AU - Fu, Xuli

AU - Chung, D. D.L.

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N2 - The flexural storage modulus was found to decrease gradually and reversibly with increasing temperature from 30 to 150°C for cement pastes. Among the admixtures used (latex, methylcellulose and silica fume), silica fume (15% by weight of cement) gave the highest flexural storage modulus at all temperatures (30-150°C), but also the greatest fractional decrease in modulus upon heating. Methylcellulose (0.4% by weight of cement) gave higher modulus than latex (20-30% by weight of cement). The modulus increased with increasing latex/cement ratio. Cement paste without admixture gave the lowest modulus.

AB - The flexural storage modulus was found to decrease gradually and reversibly with increasing temperature from 30 to 150°C for cement pastes. Among the admixtures used (latex, methylcellulose and silica fume), silica fume (15% by weight of cement) gave the highest flexural storage modulus at all temperatures (30-150°C), but also the greatest fractional decrease in modulus upon heating. Methylcellulose (0.4% by weight of cement) gave higher modulus than latex (20-30% by weight of cement). The modulus increased with increasing latex/cement ratio. Cement paste without admixture gave the lowest modulus.

UR - https://www.scopus.com/pages/publications/0031170711

U2 - 10.1016/S0008-8846(97)00071-9

DO - 10.1016/S0008-8846(97)00071-9

M3 - Article

AN - SCOPUS:0031170711

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VL - 27

SP - 839

EP - 844

JO - Cement and Concrete Research

JF - Cement and Concrete Research

IS - 6

ER -

Reversible decrease of the flexural dynamic modulus of cement pastes upon heating

Abstract

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