Research on the Effect of Beads on Properties and Microstructure of Cementing Materials

Wen Yang; Nai Qian Feng; Ch’ng Guan Bee; Xiao Qin Liu

doi:10.4028/www.scientific.net/AMM.357-360.1229

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Preparation and Performance of Photosensitive Epoxy Acrylate Modified by N-[(4-Bromo-3,5-Difluoro) Phenyl]acrylamide
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Research on the Effect of Beads on Properties and Microstructure of Cementing Materials
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360Research on the Effect of Beads on Properties and...

Research on the Effect of Beads on Properties and Microstructure of Cementing Materials

Abstract:

The paper studied the effects of different contents of beads on powder pressure entity dense packing density, mechanical performance of composite cement paste. The microstructure of the composite paste is researched by SEM analysis and nitrogen adsorption method. The results show that when the beads content is low, the compacting voidage decreases with the increased bead contents. When the beads content is 30%, composite cementing material achieves the densest packing density. The compacting voidage of composite cement powder has strong correlation with the pore structure and strength of hardened cement paste. When the compacting voidage value reaches minimum, the average pore radius and maximum pore radius of hardened cement paste reach the minimum values. In addition, the 28d strength of composite cement paste is higher than ordinary cement paste.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

1229-1234

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.1229

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Online since:

August 2013

Authors:

Wen Yang, Nai Qian Feng, Ch’ng Guan Bee, Xiao Qin Liu

Keywords:

Beads, Compacting Voidage, Microstructure, Pore Structure

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References

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