一种热缩型纤维增强水泥基材料及其制备方法和应用
By using a gradient water bath curing method with heat-shrinkable polypropylene fibers and nano-calcium carbonate dispersion, combined with materials such as calcined coal gangue powder, the problem of insufficient mechanical properties of coal-based solid waste cement-based materials was solved, realizing the preparation of high-performance green building materials and improving flexural, compressive and tensile strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INNER MONGOLIA UNIV OF TECH
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cement-based materials for coal-based solid waste have mechanical properties that are insufficient to meet application requirements. Steel fibers and PVA fibers have high economic costs, risks of corrosion and expansion, and problems of slurry segregation and sedimentation, making it difficult to improve the mechanical properties of coal-based solid waste systems with high admixture content.
Heat-shrinkable polypropylene fibers and nano-calcium carbonate dispersions are used, and a gradient water bath curing method is employed. Combined with calcined coal gangue powder, cement, fly ash, and coal slag powder, a heat-shrinkable fiber-reinforced cementitious material is formed. This optimizes the micropores and interfacial bonding strength, and utilizes the pozzolanic reaction to generate secondary calcium silicate gel to enhance the matrix density.
It significantly improves flexural strength, compressive strength and tensile strength, while realizing the disposal of industrial solid waste and reducing carbon emissions, providing a new path for green high-performance building materials.
Smart Images
Figure CN122127114B_ABST