Method of blending mineral material repair material with active activation synergy targeted adhesion properties

By constructing a multi-scale conductive network on a concrete substrate and applying an electrical curing process, the ratio of repair materials and curing parameters were optimized, solving the problem of determining high interfacial bonding performance, achieving efficient activation of fly ash activity, and improving the interfacial bond strength between the repair material and concrete.

CN118084423BActive Publication Date: 2026-07-21SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Filing Date
2024-02-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies make it difficult to quickly and accurately determine the proportions and activation conditions of repair materials with high interfacial bonding performance. This makes it difficult to activate the activity of high-dosage mineral admixtures, and the repair materials are prone to detach from the existing structure, thus failing to achieve the goal of extending the life of infrastructure.

Method used

A multi-scale conductive network was constructed using conductive fibers. By combining the electrical curing process parameters and measuring the bonding performance evaluation factors, the ratio of repair materials and curing process were adjusted, and the ratio of silica fume and fly ash and the electrical curing conditions were optimized to achieve high interfacial bonding performance.

Benefits of technology

This method effectively activates fly ash, improves the interfacial bonding performance of repair materials, ensures efficient bonding between repair materials and existing concrete, solves the problem of low interfacial bonding performance, and achieves the goal of high interfacial bonding performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN118084423B_ABST
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Abstract

The present application belongs to the field of concrete repair, and provides a method for repairing materials mixed with mineral materials and synergistically targeting bonding performance of active activation, which comprises preparing an initial repair material and pouring the initial repair material on an interface to be repaired of a concrete base; the initial repair material comprises silica fume, fly ash and conductive fibers; external curing process parameters are applied to cure the interface to be repaired; after the curing period ends, the bonding strength of the repaired interface and the strength of the concrete base are measured; the ratio of the difference between the bonding strength of the repaired interface and the strength of the concrete base to the strength of the concrete base is calculated to obtain a bonding performance evaluation factor; according to the comparison between the bonding performance evaluation factor and a set threshold range, it is determined whether the bonding performance meets the set requirements, if yes, the initial repair material is used as a final targeted bonding performance scheme; otherwise, the proportioning of the repair material or / and the curing process parameters are adjusted until the bonding performance meets the set requirements.
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