A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a concrete hydration heat inhibitor and a preparation method thereof. The invention concrete hydration heat inhibitor is prepared from the following raw materials in parts by weight: 20-30 parts of crop composite starch, 10-15 parts of a modified lignin nano base material, 3-5 parts of amino trimethylene phosphonic acid, 2-5 parts of diethylenetriaminepentamethylene phosphonic acid, 3-5 parts of amylolytic enzyme, 10-20 parts of polybasic weak acid, 3-5 parts of silicon dioxide porous particles, 3-5 parts of borax, 5-10 parts of paraffin, 5-10 parts of a water reducing agent, 3-5 parts of barium hydroxide octahydrate, 3-5 parts of a stabilizer and 3-5 parts of polyacrylamide. The invention relates to the technical field of concrete admixtures. According to the concrete hydration heat inhibitor and the preparation method thereof, the internal hydration temperature of large-volume and high-grade concrete can be reduced, the hydration heat inhibitor can greatly relieve the centralized heat release degree of cement hydration, the temperature cracking risk of a concrete structure is remarkably reduced, the release of hydration heat in different stages in the cement hydration process is effectively inhibited, the working performance and the long-term strength of the concrete are not influenced, and the cracking risk of the mass concrete can be effectively reduced.
本发明公开了一种混凝土水化热抑制剂及其制备方法，其原料按重量比份包括：作物复合淀粉20‑30份、改性木质素纳米基材10‑15份、氨基三甲叉膦酸3‑5份、二乙烯三胺五亚甲基叉膦酸2‑5份、淀粉水解酶3‑5份、多元弱酸10‑20份、二氧化硅多孔微粒3‑5份、硼砂3‑5份、石蜡5‑10份、减水剂5‑10份、八水合氢氧化钡3‑5份、稳定剂3‑5份和聚丙烯酰胺3‑5份，本发明涉及混凝土外加剂技术领域。该混凝土水化热抑制剂及其制备方法，能够针对降低大体积、高标号混凝土内部水化温度，水化热抑制剂能大幅缓解水泥水化集中放热程度，显著降低混凝土结构的温度开裂风险，有效抑制水泥水化过程中不同阶段水化热量的释放，不影响混凝土工作性能以及混凝土后期强度，能够有效降低大体积混凝土开裂风险。
The invention discloses a concrete hydration heat inhibitor and a preparation method thereof. The invention concrete hydration heat inhibitor is prepared from the following raw materials in parts by weight: 20-30 parts of crop composite starch, 10-15 parts of a modified lignin nano base material, 3-5 parts of amino trimethylene phosphonic acid, 2-5 parts of diethylenetriaminepentamethylene phosphonic acid, 3-5 parts of amylolytic enzyme, 10-20 parts of polybasic weak acid, 3-5 parts of silicon dioxide porous particles, 3-5 parts of borax, 5-10 parts of paraffin, 5-10 parts of a water reducing agent, 3-5 parts of barium hydroxide octahydrate, 3-5 parts of a stabilizer and 3-5 parts of polyacrylamide. The invention relates to the technical field of concrete admixtures. According to the concrete hydration heat inhibitor and the preparation method thereof, the internal hydration temperature of large-volume and high-grade concrete can be reduced, the hydration heat inhibitor can greatly relieve the centralized heat release degree of cement hydration, the temperature cracking risk of a concrete structure is remarkably reduced, the release of hydration heat in different stages in the cement hydration process is effectively inhibited, the working performance and the long-term strength of the concrete are not influenced, and the cracking risk of the mass concrete can be effectively reduced.
本发明公开了一种混凝土水化热抑制剂及其制备方法，其原料按重量比份包括：作物复合淀粉20‑30份、改性木质素纳米基材10‑15份、氨基三甲叉膦酸3‑5份、二乙烯三胺五亚甲基叉膦酸2‑5份、淀粉水解酶3‑5份、多元弱酸10‑20份、二氧化硅多孔微粒3‑5份、硼砂3‑5份、石蜡5‑10份、减水剂5‑10份、八水合氢氧化钡3‑5份、稳定剂3‑5份和聚丙烯酰胺3‑5份，本发明涉及混凝土外加剂技术领域。该混凝土水化热抑制剂及其制备方法，能够针对降低大体积、高标号混凝土内部水化温度，水化热抑制剂能大幅缓解水泥水化集中放热程度，显著降低混凝土结构的温度开裂风险，有效抑制水泥水化过程中不同阶段水化热量的释放，不影响混凝土工作性能以及混凝土后期强度，能够有效降低大体积混凝土开裂风险。
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