基于微生物处理再生微粉制备的固废掺合料及制备方法
By treating the regenerated micropowder with microorganisms and utilizing the synergistic effect of Bacillus pasteurellii and biochar, the problem of the dilution effect of the regenerated micropowder was solved, the compressive strength of cement-based materials was improved, and the goals of green building materials and carbon footprint reduction were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGAN UNIV
- Filing Date
- 2025-03-31
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, when recycled micro powder is used as a cement admixture, it has a significant dilution effect, making it difficult to effectively improve the compressive strength of cement-based materials. Furthermore, it has high energy consumption and increased costs, failing to meet the needs of green building materials and reducing carbon footprint.
A method for treating regenerated micropowder using microorganisms is employed. By culturing Bacillus pasteurellii, the secreted urease is used to hydrolyze urea in an alkaline environment to generate carbonate ions. Combined with the porous structure of biochar, this promotes the precipitation of calcium carbonate, thus preparing modified regenerated micropowder to enhance the compressive strength of cementitious matrices.
It significantly enhances the compressive strength of the cement matrix, reduces energy consumption and costs, and meets the needs of green building materials and reducing carbon footprint.
Smart Images
Figure CN120229891B_ABST