Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-temperature-rise, high-heat-conductivity and high-crack-resistance cement-based composite material and preparation method thereof
The invention provides a low-temperature-rise, high-heat-conductivity and high-crack-resistance cement-based composite material and a preparation method thereof, and belongs to the technical field of building materials. The cement-based composite material provided by the invention is prepared from the following raw materials in parts by weight: 655 to 685 parts of Portland cement, 1300 to 1380 parts of river sand, 0.5 to 2.5 parts of carbon fiber, 26 to 83 parts of low-melting-point alloy phase change microspheres, 260 to 275 parts of water and 0.6 to 1.8 parts of polycarboxylic acid water reducing agent. The low-melting-point alloy phase change microspheres with high volume latent heat and the carbon fibers with high thermal conductivity are introduced into the cement-based material, and the breaking strength and the heat conductivity coefficient of the cement-based composite material are remarkably improved by utilizing the synergistic effect of the carbon fibers and the low-melting-point alloy phase change microspheres. And meanwhile, the internal hydration temperature is greatly reduced, so that the risk of forming thermal cracks is reduced.
本发明提供了一种低升温、高导热、高抗裂水泥基复合材料及其制备方法，属于建筑材料技术领域。本发明提供的水泥基复合材料包括以下重量份数的原料：硅酸盐水泥655‑685份、河砂1300‑1380份、碳纤维0.5‑2.5份、低熔点合金相变微球26‑83份、水260‑275份、聚羧酸减水剂0.6‑1.8份。本发明通过在水泥基材料中引入具有高体积潜热的低熔点合金相变微球和高导热性的碳纤维，利用碳纤维和低熔点合金相变微球的协同作用，显著提高了水泥基复合材料的抗折强度和导热系数。同时，大幅降低了内部水化温度，从而降低了形成热裂缝的风险。
Low-temperature-rise, high-heat-conductivity and high-crack-resistance cement-based composite material and preparation method thereof
The invention provides a low-temperature-rise, high-heat-conductivity and high-crack-resistance cement-based composite material and a preparation method thereof, and belongs to the technical field of building materials. The cement-based composite material provided by the invention is prepared from the following raw materials in parts by weight: 655 to 685 parts of Portland cement, 1300 to 1380 parts of river sand, 0.5 to 2.5 parts of carbon fiber, 26 to 83 parts of low-melting-point alloy phase change microspheres, 260 to 275 parts of water and 0.6 to 1.8 parts of polycarboxylic acid water reducing agent. The low-melting-point alloy phase change microspheres with high volume latent heat and the carbon fibers with high thermal conductivity are introduced into the cement-based material, and the breaking strength and the heat conductivity coefficient of the cement-based composite material are remarkably improved by utilizing the synergistic effect of the carbon fibers and the low-melting-point alloy phase change microspheres. And meanwhile, the internal hydration temperature is greatly reduced, so that the risk of forming thermal cracks is reduced.
本发明提供了一种低升温、高导热、高抗裂水泥基复合材料及其制备方法，属于建筑材料技术领域。本发明提供的水泥基复合材料包括以下重量份数的原料：硅酸盐水泥655‑685份、河砂1300‑1380份、碳纤维0.5‑2.5份、低熔点合金相变微球26‑83份、水260‑275份、聚羧酸减水剂0.6‑1.8份。本发明通过在水泥基材料中引入具有高体积潜热的低熔点合金相变微球和高导热性的碳纤维，利用碳纤维和低熔点合金相变微球的协同作用，显著提高了水泥基复合材料的抗折强度和导热系数。同时，大幅降低了内部水化温度，从而降低了形成热裂缝的风险。
Low-temperature-rise, high-heat-conductivity and high-crack-resistance cement-based composite material and preparation method thereof
一种低升温、高导热、高抗裂水泥基复合材料及其制备方法
JIANG JINYANG (Autor:in) / JU SIYI (Autor:in) / WANG FENGJUAN (Autor:in) / WANG LIGUO (Autor:in) / LIU ZHIYONG (Autor:in)
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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