Method for preparing recycled concrete aggregate test specimen, testing device and testing method
By using dilute hydrochloric acid etching and cyclic impregnation with a composite regulating solution, a stable active regulating layer is formed, which solves the problem of integrated design of surface activity regulation and specimen structure in the preparation of recycled concrete aggregate specimens, and ensures the accuracy of bonding performance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 江苏创驰新材料科技有限公司
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for preparing recycled concrete aggregate specimens lack integrated design of surface activity regulation and specimen structure, leading to instability in the interfacial transition zone and affecting the accuracy of bond performance test results.
The recycled aggregate is activated by acid etching with dilute hydrochloric acid, and a composite regulating solution is prepared for cyclic impregnation treatment to form a stable active regulating layer. During the drying and activation curing process, a continuous active regulating layer is formed, which is then directly mixed with cement and fine aggregate to form a mold.
This design achieves true integration of surface activity regulation and specimen structure, ensuring the stability of the interface transition zone and the accuracy of adhesion performance testing, and preventing the regulation layer from falling off or being damaged during the molding process.
Smart Images
Figure CN122409291A_ABST