A cement paste, its preparation method and application
The cement paste prepared by compounding cement, fly ash, silica fume and other materials solves the problem of poor fluidity of traditional grouting materials, and achieves effective filling of fine cracks and strength improvement, thereby improving the quality and safety of the project.
CN118084426BActive Publication Date: 2026-05-26JIANGXI CONSTR TECH PROMOTION CENT
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGXI CONSTR TECH PROMOTION CENT
- Filing Date
- 2024-02-26
- Publication Date
- 2026-05-26
Smart Images
Figure BDA0004712951140000051
Abstract
This invention provides a cement paste, its preparation method, and its application, relating to the field of grouting technology. The cement paste provided by this invention, by weight, comprises the following raw materials: 50-80 parts cement, 0-25 parts fly ash, 0-15 parts silica fume, 0-1 part water-reducing agent, 0-1 part stabilizer, 1-2 parts early-strength agent, 0.1-1 part defoamer, 0-8 parts expanding agent, and 15-25 parts water. This invention uses cement, fly ash, and silica fume as main materials, and water-reducing agent, stabilizer, early-strength agent, defoamer, and expanding agent as auxiliary materials. Through scientific compounding, the resulting cement paste exhibits excellent fluidity, low bleeding rate, and outstanding foam suppression performance. It also features rapid development of early (7-day) flexural and compressive strength, continuous growth of late (28-day) flexural and compressive strength, low shrinkage rate, and good grout density.
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