Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-shrinkage low-hydration-heat concrete as well as preparation method and application thereof
The invention discloses low-shrinkage low-hydration-heat concrete as well as a preparation method and application thereof, and relates to the technical field of building materials. The concrete with low shrinkage and low hydration heat comprises the following components: a cementing material, tailing sand, a fiber material and a solvent, wherein the cementing material comprises low-heat cement, and the low-heat cement is P.LH42.5 cement; coal ash; and silica fume. According to the low-shrinkage and low-hydration-heat concrete disclosed by the invention, under the synergistic effect of all the components, the low-shrinkage and low-hydration-heat concrete disclosed by the invention has excellent performance. Specifically, the slump of the concrete is 250-270 mm, the expansion degree is 680-750 mm, the 28d breaking strength can at least reach 20.5 MPa, the 28d compressive strength can at least reach 133.2 MPa, and the 28d total shrinkage is 185 * 10 <-6 >-238 * 10 <-6 >.
本发明公开了一种低收缩低水化热的混凝土及其制备方法与应用，涉及建筑材料技术领域。上述低收缩低水化热的混凝土，包括以下组分：胶凝材料、尾矿砂、纤维材料和溶剂；其中，胶凝材料包括：低热水泥，所述低热水泥为P·LH42.5水泥；煤灰；硅灰。本发明所述低收缩低水化热的混凝土，各组分协同作用下，使得本发明所述低收缩低水化热的混凝土具有优良的性能。具体的，本发明混凝土坍落度为250‑270mm，扩展度为680‑750mm，28d抗折强度至少能够达到20.5MPa，28d抗压强度至少能够达到133.2MPa，28d总收缩为185*10‑6‑238*10‑6。
Low-shrinkage low-hydration-heat concrete as well as preparation method and application thereof
The invention discloses low-shrinkage low-hydration-heat concrete as well as a preparation method and application thereof, and relates to the technical field of building materials. The concrete with low shrinkage and low hydration heat comprises the following components: a cementing material, tailing sand, a fiber material and a solvent, wherein the cementing material comprises low-heat cement, and the low-heat cement is P.LH42.5 cement; coal ash; and silica fume. According to the low-shrinkage and low-hydration-heat concrete disclosed by the invention, under the synergistic effect of all the components, the low-shrinkage and low-hydration-heat concrete disclosed by the invention has excellent performance. Specifically, the slump of the concrete is 250-270 mm, the expansion degree is 680-750 mm, the 28d breaking strength can at least reach 20.5 MPa, the 28d compressive strength can at least reach 133.2 MPa, and the 28d total shrinkage is 185 * 10 <-6 >-238 * 10 <-6 >.
本发明公开了一种低收缩低水化热的混凝土及其制备方法与应用，涉及建筑材料技术领域。上述低收缩低水化热的混凝土，包括以下组分：胶凝材料、尾矿砂、纤维材料和溶剂；其中，胶凝材料包括：低热水泥，所述低热水泥为P·LH42.5水泥；煤灰；硅灰。本发明所述低收缩低水化热的混凝土，各组分协同作用下，使得本发明所述低收缩低水化热的混凝土具有优良的性能。具体的，本发明混凝土坍落度为250‑270mm，扩展度为680‑750mm，28d抗折强度至少能够达到20.5MPa，28d抗压强度至少能够达到133.2MPa，28d总收缩为185*10‑6‑238*10‑6。
Low-shrinkage low-hydration-heat concrete as well as preparation method and application thereof
一种低收缩低水化热的混凝土及其制备方法与应用
DA JUNWEI (Autor:in) / LI MENGQIANG (Autor:in) / ZHANG YI (Autor:in) / JIANG ZHEN (Autor:in) / WANG JUN (Autor:in)
05.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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