Green lightweight foamed concrete and method for preparing the same
By combining modified straw fiber and mineral admixtures, the problem of inhibiting the hydration reaction of straw fiber in concrete is solved, achieving high strength and good performance of green lightweight foamed concrete, meeting the comprehensive performance requirements of the construction field.
CN118754711BActive Publication Date: 2026-07-24CHINA CONSTRUCTION SIXTH ENGINEERING DIVISION CO LTD +2
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Patent Information
- Application Number
- CN202410841893.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2044-06-27
AI Technical Summary
Technical Problem
In existing technologies, the addition of straw fibers inhibits the cement hydration reaction, leading to a decrease in concrete strength. Furthermore, the poor adhesion between straw and the matrix affects crack resistance and durability.
Method used
By modifying straw fibers, the active groups of the straw fibers are improved through pretreatment and anaerobic microbial fermentation. Combined with mineral admixtures and specific additives, green lightweight foamed concrete is prepared.
Benefits of technology
It significantly enhances the crack resistance and durability of foamed concrete, while also improving its thermal insulation, sound insulation, energy dissipation, and vibration damping properties, and improving the bonding performance between fibers and the matrix.
✦ Generated by Eureka AI based on patent content.
Abstract
The application is green light-weight foam concrete and a preparation method thereof. The light-weight foam concrete is prepared from the following components in parts by weight: cement 500-1000 parts, mineral admixture 50-100 parts, water 250-500 parts, fine aggregate 1500-2500 parts, modified straw fiber 50-150 parts, foaming agent 4-6 parts, foam stabilizer 2-4 parts, compensating agent 25-50 parts, water reducing agent 5-10 parts, and coupling agent 1-2 parts. The light-weight foam concrete prepared by the application not only has good heat preservation, heat insulation and sound insulation performance, but also realizes resource utilization of solid waste, and has certain environmental protection advantages.
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