Study on Optimization Proportioning Experiment and its Hydration Mechanism of Composite Cementing Material

Abstract:

This article aims at the accelerating characteristic of coal filling material. We scientifically made a series of proportion on composite-cementing material through uniform design with Portland cement, sulpho-aluminate cement and gypsums. After having testing the capability of this, we found that some certain composite-cementing material strength has been improved, both early and later strength. Furthermore, we also continually analyzed the hydration products and microstructure of composite-cementing material, then determined that early hydration products were mostly ettringites and later were C-S-H-centered and CH-centered gel.

• Periodical: Applied Mechanics and Materials (Volumes 121-126)
• Pages: 418-422
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.121-126.418
• Online since: October 2011
• Authors: Jin Xiao Liu, Zeng De Yin, Wen Bin Sun
• Keywords: Composite-Cementing Material, Paste Filling Material, Uniform Design

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