Strength and Consolidation Mechanism of  Glacial Moraine Solidified with Water Glass

Abstract

Abstract: In order to solve the problem of ground collapse and mudslide caused by the accumulation of loose moraine on the surface of Pulang copper mine in the process of mining, this article prepared a solidified material to solidify moraine with water glass composite ester curing agent. The compressive strength of moraine solidified body was studied, and the consolidation mechanism of water glass composite ester curing agent for consolidating moraine was explored through XRD, FTIR, DSC-TG and SEM. The results show that the moraine solidified body 28 d compressive strength can reach up to 2.05 MPa, indicating good consolidation performance. Under the action of ester curing agent, the hydrolysate of water glass reacts with the hydrolysate of ester curing agent to produce sodium acetate and silicon gel, and silicon gel plays a role in filling the gap between moraine particles and cementing moraine particles.

Key words: ester curing agent, water glass, moraine, gel, sodium acetate hydrate, consolidation

CLC Number:

TD265.4⁺4

YANG Chaoyi, HAN Jiangfeng, ZHU Qiankun, DING Linna, BIAN Libo, LIU Juanhong. Strength and Consolidation Mechanism of Glacial Moraine Solidified with Water Glass[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(6): 2217-2224.

References

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Strength and Consolidation Mechanism of Glacial Moraine Solidified with Water Glass

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