Polymer repair mortar for industrial terrace and preparation method of polymer repair mortar

By optimizing the raw material components and preparation process of polymer repair mortar for industrial floors, the problem of basalt fibers easily sinking is solved, high bond strength, low shrinkage rate and good flexibility is achieved, and it is suitable for deep gap repair of industrial floors.

CN120535256APending Publication Date: 2025-08-26JIANGSU SALT CONCRETE NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202510728160.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2025-08-26

AI Technical Summary

Technical Problem

The basalt fibers in the existing polymer repair mortar for industrial floors are prone to clumping and sinking, resulting in insufficient bonding strength, poor flexibility and poor fluidity.

Method used

By introducing basalt fibers, aqueous epoxy resins, dispersants, silane coupling agents and curing agents, the raw material components and preparation process are optimized, and the dispersant is used to improve the dispersion of fibers. The silane coupling agent enhances the binding force between the fibers and the resin, forming a continuous mesh film, supporting the fibers to avoid sinking, and adding activated calcium carbonate to fill the voids to form a uniform gelling system.

Benefits of technology

It improves the bonding strength of the repair mortar, reduces shrinkage, enhances flexibility and fluidity, and is suitable for deep gap repair of industrial floors.

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Abstract

The invention discloses polymer repair mortar for an industrial floor and a preparation method of the polymer repair mortar. The polymer repair mortar is prepared from water-borne epoxy resin emulsion, Portland cement, medium sand, activated calcium carbonate, a curing agent, a defoaming agent, basalt fibers, nano silicon dioxide, a dispersing agent, a silane coupling agent and water. The preparation method comprises the following steps: mixing the Portland cement, the medium sand and the activated calcium carbonate to obtain a mixture; the preparation method comprises the following steps: performing ultrasonic treatment on nano silicon dioxide by using an ethanol solution and drying to obtain pretreated nano silicon dioxide; the preparation method comprises the following steps: dissolving a dispersing agent in water, adding basalt fibers, stirring and dispersing, adding a water-borne epoxy resin emulsion and a silane coupling agent, and stirring to obtain a mixed liquid; and finally, adding the pretreated nano silicon dioxide, the curing agent and the defoaming agent into the mixture, stirring, adding the mixed liquid, and slowly stirring. The repairing mortar disclosed by the invention is a cement-based repairing material which is high in bonding strength, small in shrinkage rate, strong in flexibility and good in fluidity and can penetrate into gaps to fill defects.
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