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Mass concrete hydration temperature rise inhibitor as well as preparation method and application thereof
The invention discloses a mass concrete hydration temperature rise inhibitor and a preparation method thereof. The inhibitor is composed of porous ceramsite, a phase change material and a starch-basedhydration heat regulation and control material; the particle size of the porous ceramsite is 1-25 mm, and the surface pore diameter of the porous ceramsite is 10-300 [mu] m; the phase change materialis one or a mixture of two of paraffin and barium hydroxide octahydrate in any proportion. By utilizing the characteristics of porous structure and relatively closed gaps of concrete, porous ceramsite is used as a carrier to load a phase change material and absorb heat generated by hydration of large-volume concrete, and a hydration heat regulation and control technology is combined to reduce thehydration heat release rate of cement, delay the temperature rise rate of the large-volume concrete and reduce the temperature peak of the large-volume concrete; meanwhile, the phase-change energy storage material adopted in the technology plays a role in heat compensation in the temperature drop stage of the mass concrete, the temperature difference between the inner surface and the outer surface of a concrete structure can be reduced, and the non-penetrating surface cracking phenomenon is reduced.
本发明公开了一种大体积混凝土水化温升抑制剂及其制备方法。本发明所述抑制剂由多孔陶粒、相变材料及淀粉基水化热调控材料组成，所述多孔陶粒的粒径为1mm‑25mm，表面孔径为10‑300um；所述相变材料为石蜡、八水合氢氧化钡中的一种或两种以任意比例混合。本发明利用混凝土多孔结构且空隙相对封闭的特性，应用多孔陶粒作为载体，负载相变材料，吸收大体积混凝土水化产生的热量，结合水化热调控技术，降低水泥水化放热速率，延缓大体积混凝土温升速率，降低大体积混凝土温峰；同时本技术采用的相变储能材料在大体积混凝土温降阶段起到热量补偿作用，可以降低混凝土结构里表温差，减少非贯穿性的表面开裂现象。
Mass concrete hydration temperature rise inhibitor as well as preparation method and application thereof
The invention discloses a mass concrete hydration temperature rise inhibitor and a preparation method thereof. The inhibitor is composed of porous ceramsite, a phase change material and a starch-basedhydration heat regulation and control material; the particle size of the porous ceramsite is 1-25 mm, and the surface pore diameter of the porous ceramsite is 10-300 [mu] m; the phase change materialis one or a mixture of two of paraffin and barium hydroxide octahydrate in any proportion. By utilizing the characteristics of porous structure and relatively closed gaps of concrete, porous ceramsite is used as a carrier to load a phase change material and absorb heat generated by hydration of large-volume concrete, and a hydration heat regulation and control technology is combined to reduce thehydration heat release rate of cement, delay the temperature rise rate of the large-volume concrete and reduce the temperature peak of the large-volume concrete; meanwhile, the phase-change energy storage material adopted in the technology plays a role in heat compensation in the temperature drop stage of the mass concrete, the temperature difference between the inner surface and the outer surface of a concrete structure can be reduced, and the non-penetrating surface cracking phenomenon is reduced.
本发明公开了一种大体积混凝土水化温升抑制剂及其制备方法。本发明所述抑制剂由多孔陶粒、相变材料及淀粉基水化热调控材料组成，所述多孔陶粒的粒径为1mm‑25mm，表面孔径为10‑300um；所述相变材料为石蜡、八水合氢氧化钡中的一种或两种以任意比例混合。本发明利用混凝土多孔结构且空隙相对封闭的特性，应用多孔陶粒作为载体，负载相变材料，吸收大体积混凝土水化产生的热量，结合水化热调控技术，降低水泥水化放热速率，延缓大体积混凝土温升速率，降低大体积混凝土温峰；同时本技术采用的相变储能材料在大体积混凝土温降阶段起到热量补偿作用，可以降低混凝土结构里表温差，减少非贯穿性的表面开裂现象。
Mass concrete hydration temperature rise inhibitor as well as preparation method and application thereof
一种大体积混凝土水化温升抑制剂、其制备方法及其应用
LIU JIAPING (author) / TIAN QIAN (author) / LI LEI (author) / ZHANG SHOUZHI (author) / WANG YUJIANG (author) / YAO TING (author) / LU ANQUN (author) / WANG RUI (author) / WANG WENBIN (author)
2020-07-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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