Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Phase-change temperature-control internal curing functional aggregate for high-strength concrete and preparation method of phase-change temperature-control internal curing functional aggregate
The invention provides phase-change temperature-control internal curing functional aggregate for high-strength concrete and a preparation method of the phase-change temperature-control internal curing functional aggregate, and relates to the technical field of building materials. A phase-change material paraffin is arranged on the inner layer, a heat conduction water storage layer composed of carbon fibers, graphite powder, super absorbent resin, fly ash, phosphorus slag powder, slag powder, quick lime, polyacrylamide, clarified lime water and an additive is wrapped outside the phase-change material paraffin for aggregate granulation forming, the dispersed graphite powder is connected through the carbon fibers, and a heat conduction net structure of line communication points is formed. The clarified lime water performs alkali excitation on the fly ash, the phosphorus slag powder and the slag powder in the ingredients to generate hydration reaction, so that the strength of an external structure is constructed, heat is released when the internal temperature of the concrete is low, and the whole process is slowly released along with water; double internal curing functions of temperature control and wetting are realized, cracking of the high-strength concrete caused by high hydration heat, large shrinkage and the like is avoided, and the durability of the high-strength concrete is improved.
本发明提供一种高强混凝土用相变控温内养护功能骨料及其制备方法，涉及建筑材料技术领域，内层设置相变材料石蜡并在外部包覆由碳纤维、石墨粉、高吸水树脂、粉煤灰、磷渣粉、矿渣粉、生石灰、聚丙烯酰胺、澄清石灰水和外加剂组成的导热蓄水层进行骨料造粒成型，通过碳纤维连接分散开的石墨粉，形成线连通点的导热网结构，提高导热性能，促进内部石蜡和外部环境的热量传导，澄清石灰水对配料中粉煤灰、磷渣粉、矿渣粉进行碱激发，发生水化反应，构建了外部结构的强度，在混凝土内部温度低时释放热量，整个过程伴随着水缓慢释放，实现控温和湿润的双重内养护功能，避免高强混凝土由于水化热高、收缩大等引起的开裂，提高高强混凝土的耐久性。
Phase-change temperature-control internal curing functional aggregate for high-strength concrete and preparation method of phase-change temperature-control internal curing functional aggregate
The invention provides phase-change temperature-control internal curing functional aggregate for high-strength concrete and a preparation method of the phase-change temperature-control internal curing functional aggregate, and relates to the technical field of building materials. A phase-change material paraffin is arranged on the inner layer, a heat conduction water storage layer composed of carbon fibers, graphite powder, super absorbent resin, fly ash, phosphorus slag powder, slag powder, quick lime, polyacrylamide, clarified lime water and an additive is wrapped outside the phase-change material paraffin for aggregate granulation forming, the dispersed graphite powder is connected through the carbon fibers, and a heat conduction net structure of line communication points is formed. The clarified lime water performs alkali excitation on the fly ash, the phosphorus slag powder and the slag powder in the ingredients to generate hydration reaction, so that the strength of an external structure is constructed, heat is released when the internal temperature of the concrete is low, and the whole process is slowly released along with water; double internal curing functions of temperature control and wetting are realized, cracking of the high-strength concrete caused by high hydration heat, large shrinkage and the like is avoided, and the durability of the high-strength concrete is improved.
本发明提供一种高强混凝土用相变控温内养护功能骨料及其制备方法，涉及建筑材料技术领域，内层设置相变材料石蜡并在外部包覆由碳纤维、石墨粉、高吸水树脂、粉煤灰、磷渣粉、矿渣粉、生石灰、聚丙烯酰胺、澄清石灰水和外加剂组成的导热蓄水层进行骨料造粒成型，通过碳纤维连接分散开的石墨粉，形成线连通点的导热网结构，提高导热性能，促进内部石蜡和外部环境的热量传导，澄清石灰水对配料中粉煤灰、磷渣粉、矿渣粉进行碱激发，发生水化反应，构建了外部结构的强度，在混凝土内部温度低时释放热量，整个过程伴随着水缓慢释放，实现控温和湿润的双重内养护功能，避免高强混凝土由于水化热高、收缩大等引起的开裂，提高高强混凝土的耐久性。
Phase-change temperature-control internal curing functional aggregate for high-strength concrete and preparation method of phase-change temperature-control internal curing functional aggregate
一种高强混凝土用相变控温内养护功能骨料及其制备方法
HE KAI (Autor:in) / LIN XIHUA (Autor:in) / SONG LANLAN (Autor:in) / GU QINGSHAN (Autor:in)
05.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
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