A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Slow-release hydration heat inhibitor and preparation method thereof
The invention discloses a slow-release hydration heat inhibitor and a preparation method thereof, and relates to the technical field of concrete admixtures, the slow-release hydration heat inhibitor comprises, by mass, 60-70 parts of a dissolution heat absorption component, 10-20 parts of a hydration reaction adjusting component, and 20-30 parts of a temperature control heat absorption component; the dissolving heat absorption component comprises one or more of calcium nitrate, ammonium nitrate or potassium nitrate, and the temperature control heat absorption component comprises the following components in percentage by mass: 70-80% of paraffin and 20-30% of barium hydroxide octahydrate. The slow-release hydration heat inhibitor is obtained by sequentially wrapping mixed particles formed by a dissolution heat absorption component and a hydration reaction adjusting component with barium hydroxide octahydrate and paraffin from inside to outside. The slow-release hydration heat inhibitor disclosed by the invention can realize step-by-step regulation and control aiming at the problem of large hydration heat release of mass concrete, the hydration heat of the mass concrete is remarkably reduced, and the risk caused by temperature difference shrinkage cracks of the concrete is greatly reduced.
本发明公开了一种缓释水化热抑制剂及其制备方法，涉及混凝土外加剂技术领域，缓释水化热抑制剂包括按质量份数计的溶解吸热组分60～70份，水化反应调节组分为10～20份，温控吸热组分为20～30份；所述溶解吸热组分包括硝酸钙、硝酸铵或硝酸钾中的一种或多种，所述温控吸热组分包括按质量百分含量计的石蜡70～80％和八水合氢氧化钡20～30％，所述缓释水化热抑制剂由八水合氢氧化钡、石蜡从内至外依次将溶解吸热组分和水化反应调节组分形成的混合颗粒进行包裹得到。本发明缓释水化热抑制剂能针对大体积混凝土水化放热大的问题实现逐级调控，显著降低大体积混凝土的水化热，大幅度降低混凝土温差收缩裂缝产生的风险。
Slow-release hydration heat inhibitor and preparation method thereof
The invention discloses a slow-release hydration heat inhibitor and a preparation method thereof, and relates to the technical field of concrete admixtures, the slow-release hydration heat inhibitor comprises, by mass, 60-70 parts of a dissolution heat absorption component, 10-20 parts of a hydration reaction adjusting component, and 20-30 parts of a temperature control heat absorption component; the dissolving heat absorption component comprises one or more of calcium nitrate, ammonium nitrate or potassium nitrate, and the temperature control heat absorption component comprises the following components in percentage by mass: 70-80% of paraffin and 20-30% of barium hydroxide octahydrate. The slow-release hydration heat inhibitor is obtained by sequentially wrapping mixed particles formed by a dissolution heat absorption component and a hydration reaction adjusting component with barium hydroxide octahydrate and paraffin from inside to outside. The slow-release hydration heat inhibitor disclosed by the invention can realize step-by-step regulation and control aiming at the problem of large hydration heat release of mass concrete, the hydration heat of the mass concrete is remarkably reduced, and the risk caused by temperature difference shrinkage cracks of the concrete is greatly reduced.
本发明公开了一种缓释水化热抑制剂及其制备方法，涉及混凝土外加剂技术领域，缓释水化热抑制剂包括按质量份数计的溶解吸热组分60～70份，水化反应调节组分为10～20份，温控吸热组分为20～30份；所述溶解吸热组分包括硝酸钙、硝酸铵或硝酸钾中的一种或多种，所述温控吸热组分包括按质量百分含量计的石蜡70～80％和八水合氢氧化钡20～30％，所述缓释水化热抑制剂由八水合氢氧化钡、石蜡从内至外依次将溶解吸热组分和水化反应调节组分形成的混合颗粒进行包裹得到。本发明缓释水化热抑制剂能针对大体积混凝土水化放热大的问题实现逐级调控，显著降低大体积混凝土的水化热，大幅度降低混凝土温差收缩裂缝产生的风险。
Slow-release hydration heat inhibitor and preparation method thereof
一种缓释水化热抑制剂及其制备方法
ZHANG GUOZHI (author) / WANG SONGLIN (author) / CHEN FEIXIANG (author) / WEI KAI (author) / LENG YONG (author) / XIAO JI (author) / LIU KEXIN (author) / JIN LANG (author) / WEN QING (author) / WANG WEIGUANG (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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