High-ductility cement-based repair mortar and method of making same
By constructing a "rubber core-asphalt shell" structure and the temperature-sensitive water retention mechanism of VAE, the problems of weak interface and insufficient water retention performance of existing repair mortar in arid environments are solved, and a repair mortar with high ductility and high bond strength is realized, which is suitable for the repair of concrete structures in arid areas.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XINJIANG WATER CONSERVANCY DEV INVESTMENT (GRP) CO LTD
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing modified repair mortars face problems such as poor interfacial compatibility, weak micro-interfaces, and insufficient water retention under arid and extreme environments, which makes the materials prone to cracking under large deformation and thermal stress, and cannot effectively improve toughness and bond strength.
A two-stage demulsification process was used to construct a "rubber core-asphalt shell" structure, which, combined with the temperature-sensitive water-retaining and slow-release mechanism of VAE, formed a multi-scale interpenetrating network, improving the ductility and bonding strength of the material.
In harsh, arid environments, a repair mortar with high ductility, low shrinkage, and high bond strength was developed, effectively improving interfacial compatibility and water retention, and enhancing the tensile strength and interfacial adhesion of the material.
Smart Images
Figure CN122403891A_ABST