Anti-dispersion and anti-segregation grouting additive in water as well as preparation method and application of anti-dispersion and anti-segregation grouting additive

By combining silica fume, redispersible latex powder, aluminum sulfate, aluminate cement clinker, and retarder, the problems of dispersion, segregation, and uncontrollable setting time of grouting materials in underwater environments are solved, achieving multi-functional integration with low admixture dosage and improving the reliability and efficiency of grouting.

CN122444490APending Publication Date: 2026-07-24SHANDONG ANSHI GREEN MINING TECH DEV
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Patent Information

Application Number
CN202610699267.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-20
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing grouting materials are prone to dispersion and segregation in underwater or dynamic water environments, and their setting time is uncontrollable. Furthermore, the construction process is complex, making it difficult to achieve the integrated functions of anti-dispersion, anti-segregation, rapid setting, and micro-expansion.

Method used

A specific combination of silica fume, redispersible latex powder, aluminum sulfate, aluminate cement clinker, and retarder is used to form a grouting additive in water that is resistant to dispersion and segregation. Through synergistic effects, it achieves anti-dispersion, rapid setting, retarding, and micro-expansion effects at low dosage.

Benefits of technology

Under low admixture conditions of 5% to 8%, the grout achieves anti-dispersion, anti-segregation, rapid and controllable setting, and micro-expansion, simplifying the construction process, improving the reliability and efficiency of grouting, and adapting to dynamic water environments.

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Abstract

The invention discloses an anti-dispersion and anti-segregation grouting additive in water as well as a preparation method and application thereof, and belongs to the technical field of grouting materials. The cement is prepared from the following raw materials in parts by mass: 30-50 parts of silica fume, 16-24 parts of redispersible latex powder, 20-30 parts of aluminum sulfate, 16-24 parts of aluminate cement clinker and 1-2 parts of a retarder. According to the present invention, the five components such as silica fume, redispersible latex powder, aluminum sulfate, aluminate cement clinker and retarder are combined according to the specific ratio, such that the synergistic integration of the multiple functions such as dispersion resistance, segregation resistance, rapid setting controllability, micro-expansion and the like under the low mixing amount is achieved.
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