一种基于改性封堵材料的水下混凝土修补材料

By combining modified sealing materials, the problems of anti-dispersion and bonding strength of underwater concrete repair materials are solved, realizing rapid underwater repair and efficient bonding, which is suitable for the repair of hydraulic structures.

CN118405899BActive Publication Date: 2026-07-17CHINA YANGTZE POWER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA YANGTZE POWER
Filing Date
2024-05-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing concrete repair materials have poor anti-dispersion properties and low bonding strength in underwater applications, resulting in high repair costs and time-consuming and labor-intensive repairs for hydraulic engineering projects, and the sealing materials are prone to falling off.

Method used

The modified sealing material consists of inorganic rapid sealing material, quartz sand, silica fume, setting regulator, redispersible latex powder, HPMC, flocculant and setting accelerator. After being mixed evenly, it is mixed with water to prepare an underwater concrete repair material, which has the characteristics of short setting time, strong anti-dispersion and strong adhesion.

Benefits of technology

It enables rapid underwater repair, reduces engineering costs, improves repair quality, reduces water pollution, and enhances adhesion to concrete. It is suitable for repair projects involving filling narrow gaps and areas with high tidal range.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提出了一种基于改性封堵材料的水下混凝土修补材料及其制备方法,其组成和重量分数如下:无机快速封堵材料950~1000份、石英砂500~600份、硅灰40~60份、调凝剂0.3~0.5份、可再分散乳胶粉20~30份、HPMC 1~2份、絮凝2~2.5份、促凝剂0.5~0.8份。本发明所述的水下混凝土修补材料具有凝结时间短、水下抗分散性强、与混凝土界面粘接能力强、施工方法简单、力学性能稳定、无毒等优点。
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