On September 15, according to the information of the State Intellectual Property Office, Huaxin Building Materials Group Co., Ltd. applied for a patent entitled "a microcapsule anti-cracking concrete and its preparation method".
The application publication number is CN122725731A, the application number is CN202610947114.X, the application publication date is September 11, 2026, and the application date is June 29, 2026. Hubei Wuhan Yongjia Patent Agency Co., Ltd., patent agent Li Yanjing, classification number C04B28/04. The
patent abstract shows that the invention discloses a microcapsule anti-cracking concrete and a preparation method thereof, and belongs to the technical field of concrete. The microcapsule anti-crack concrete comprises cement, mineral pow, fly ash, machine-made sand, broken stone, a water reducing agent, water, a plastic expand agent, a microcapsule a and a microcapsule B, wherein that microcapsule a or the microcapsule B is prepared by preparing xanthan gum and guar gum into xanthan gum-guar gum composite gel wall material solution, and preparing core material emulsion by emulsifying and modifying hexamethylene diisocyanate; Adde that core material emulsion and a calcium nitrate solution or a diammonium hydrogen phosphate solution into a wall material solution, and then adding polyvinylpyrrolidone to serve as a wat phase; adding sorbitan oleate into liquid paraffin to serve as an oil phase; and dripping the water phase into the oil phase. The concrete realizes complete filling from inside to outside during repair, has higher strength, better crack resistance and good durability, effectively reduces communicated pores, has low chloride ion permeability coefficient, and has wide application prospect.
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