Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-cracking admixture for mass concrete as well as preparation method and application of anti-cracking admixture
The invention discloses an anti-crack admixture for mass concrete and a preparation method and application thereof, and relates to the technical field of building material admixtures, the anti-crack admixture comprises the following raw materials by mass: 70-80% of ultrafine marble powder, 19-28% of light calcined magnesia, 0.5-1% of sodium polyacrylate, and 0.5-1% of hemp fiber. The dosage of the admixture is 80-100kg/m < 3 > according to the total volume of the concrete. According to the anti-cracking admixture for the mass concrete, provided by the invention, through the synergistic matching effect of the hemp fibers, the superfine marble powder, the light calcined magnesia and the sodium polyacrylate, the hydration heat reaction process of the mass concrete is effectively adjusted, and the hydration reaction rate is delayed; the concrete internal curing effect is achieved, and the durability of the concrete is improved. The waste marble powder is used, so that waste utilization is realized, and the requirements of green building development are met.
本发明公开了一种大体积混凝土用抗裂掺合料及其制备方法和应用，涉及建筑材料外加剂技术领域，抗裂掺合料的原料按质量百分比包括：超细大理石粉70‑80％、轻烧氧化镁19‑28％、聚丙烯酸钠0.5‑1％、大麻纤维0.5‑1％。上述掺合料的用量按混凝土的总体积计为80‑100kg/m3。本发明提供的大体积混凝土用抗裂掺合料，通过大麻纤维与超细大理石粉、轻烧氧化镁、聚丙烯酸钠的协同配合作用，有效调节了大体积混凝土的水化热反应过程，延缓了水化反应速率；实现了混凝土内养护效果，提升了混凝土的耐久性。使用了废弃大理石粉，实现了废物利用，合绿色建筑发展的要求。
Anti-cracking admixture for mass concrete as well as preparation method and application of anti-cracking admixture
The invention discloses an anti-crack admixture for mass concrete and a preparation method and application thereof, and relates to the technical field of building material admixtures, the anti-crack admixture comprises the following raw materials by mass: 70-80% of ultrafine marble powder, 19-28% of light calcined magnesia, 0.5-1% of sodium polyacrylate, and 0.5-1% of hemp fiber. The dosage of the admixture is 80-100kg/m < 3 > according to the total volume of the concrete. According to the anti-cracking admixture for the mass concrete, provided by the invention, through the synergistic matching effect of the hemp fibers, the superfine marble powder, the light calcined magnesia and the sodium polyacrylate, the hydration heat reaction process of the mass concrete is effectively adjusted, and the hydration reaction rate is delayed; the concrete internal curing effect is achieved, and the durability of the concrete is improved. The waste marble powder is used, so that waste utilization is realized, and the requirements of green building development are met.
本发明公开了一种大体积混凝土用抗裂掺合料及其制备方法和应用，涉及建筑材料外加剂技术领域，抗裂掺合料的原料按质量百分比包括：超细大理石粉70‑80％、轻烧氧化镁19‑28％、聚丙烯酸钠0.5‑1％、大麻纤维0.5‑1％。上述掺合料的用量按混凝土的总体积计为80‑100kg/m3。本发明提供的大体积混凝土用抗裂掺合料，通过大麻纤维与超细大理石粉、轻烧氧化镁、聚丙烯酸钠的协同配合作用，有效调节了大体积混凝土的水化热反应过程，延缓了水化反应速率；实现了混凝土内养护效果，提升了混凝土的耐久性。使用了废弃大理石粉，实现了废物利用，合绿色建筑发展的要求。
Anti-cracking admixture for mass concrete as well as preparation method and application of anti-cracking admixture
一种大体积混凝土用抗裂掺合料及其制备方法和应用
LI YAO (Autor:in) / XIONG XUEWEI (Autor:in) / SHEN LEI (Autor:in) / WU KUI (Autor:in) / PENG JUN (Autor:in) / FANG XIAN (Autor:in) / LIU QIAO (Autor:in) / ZHENG XINLAN (Autor:in) / WANG YUTAO (Autor:in) / CHEN QIAN (Autor:in)
29.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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