China State Construction Engineering Corporation has obtained a patent for concrete surface curing materials suitable for harsh, windy, and dry environments and their preparation methods

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According to data from the Tianyancha app, China State Construction Engineering Corporation (601668) has newly obtained an invention patent grant. The title of the patent is “A concrete surface curing material for high-wind and dry environments and its preparation method”; the patent application number is CN202310131497.X, and the grant date is September 5, 2025. Patent Abstract: The present invention discloses a concrete surface curing material and its preparation method. The concrete surface curing material comprises the following components: 40%–50% of bio-based materials containing active hydroxyl groups, 0.1%–1% of ammonium persulfate, 0.05%–0.1% of ammonium cerium nitrate, 10%–20% of acrylamide, 5%–10% of 2-acrylamido-2-methylpropanesulfonic acid, 1%–5% of N,N’-methylenebisacrylamide, 1%–5% of a pH regulator, and 1%–10% of polyether polyol. The concrete surface curing material uses active biomass as a raw material; through radical-initiated reactions, cross-linked polymer compounds are formed, which enable the creation of a dense polymer film on the concrete surface. This film prevents water evaporation from the concrete surface, achieving a water retention rate of over 90% ； At the same time, the raw materials used in this product contain no organic residues or volatiles, causing no environmental pollution and meeting the policy requirements for **low-carbon and environmentally friendly practices. Since the beginning of this year, China State Construction has obtained 20 new patent approvals, a decrease of 66.67% compared to the same period last year. Based on the company’s financial figures for the first half of 2025, the company invested 17.426 billion yuan in research and development during this period, a decrease of 0.39% compared to the previous year.