Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultralow-water-absorption lightweight thermal-insulation foam concrete and preparation method thereof
The invention discloses lightweight thermal insulation foam concrete with ultralow water absorption and a preparation method thereof, and belongs to the technical field of Sanjing Patterns, the lightweight thermal insulation foam concrete comprises the following raw materials: 200-260 parts of cement, 100-140 parts of an admixture, 150-200 parts of lightweight aggregate, 30-50 parts of graphene oxide, 10-20 parts of hollow microspheres, 5-15 parts of an organic polymer, 20-40 parts of a filler, 70-90 parts of a foaming agent, 20-30 parts of an auxiliary agent and 180-220 parts of water; the auxiliary agent comprises the following raw materials in parts by weight: 5-10 parts of a foam stabilizer, 3-8 parts of a water reducing agent, 1-5 parts of a silane coupling agent, 2-4 parts of a water repellent, 1-3 parts of a film-forming agent, 2-4 parts of a thickening agent and 1-3 parts of an accelerator. Foam generated by foaming of the foaming agent forms a large number of microbubbles in concrete, the mass of the concrete is reduced, the strength of the concrete is enhanced, the water absorption rate, the dry density and the heat conductivity coefficient can be reduced through the light closed-cell structure of the hollow microspheres, the strength of the concrete is enhanced through the filler, and the hydrophobic performance of the concrete is further improved through the water repellent organic polymer and the film-forming agent. Therefore, the heat preservation effect is improved, the process is simple and convenient, and popularization value is achieved.
本发明公开了超低吸水率轻质保温泡沫混凝土及其制备方法，属于沪宁图技术领域，其原料组成包括：水泥200‑260份、掺合料100‑140份、轻骨料150‑200份、氧化石墨烯30‑50份、中空微球10‑20份、有机聚合物5‑15份、填料20‑40份、发泡剂70‑90份、助剂20‑30份和水180‑220份；助剂以重量份计，其原料组成包括：稳泡剂5‑10份、减水剂3‑8份、硅烷偶联剂1‑5份、憎水剂2‑4份、成膜剂1‑3份、增稠剂2‑4份、速凝剂1‑3份。通过发泡剂发泡产生的泡沫在混凝土内形成大量微气泡，减小混凝土质量并强化强度，通过中空微球的轻质闭孔结构，可降低吸水率、干密度、导热系数，通过填料增强其强度，通过憎水剂有机聚合物以及成膜剂进一步提高混凝土的疏水性能，减小吸水性，从而提高保温效果，工艺简便，具有推广价值。
Ultralow-water-absorption lightweight thermal-insulation foam concrete and preparation method thereof
The invention discloses lightweight thermal insulation foam concrete with ultralow water absorption and a preparation method thereof, and belongs to the technical field of Sanjing Patterns, the lightweight thermal insulation foam concrete comprises the following raw materials: 200-260 parts of cement, 100-140 parts of an admixture, 150-200 parts of lightweight aggregate, 30-50 parts of graphene oxide, 10-20 parts of hollow microspheres, 5-15 parts of an organic polymer, 20-40 parts of a filler, 70-90 parts of a foaming agent, 20-30 parts of an auxiliary agent and 180-220 parts of water; the auxiliary agent comprises the following raw materials in parts by weight: 5-10 parts of a foam stabilizer, 3-8 parts of a water reducing agent, 1-5 parts of a silane coupling agent, 2-4 parts of a water repellent, 1-3 parts of a film-forming agent, 2-4 parts of a thickening agent and 1-3 parts of an accelerator. Foam generated by foaming of the foaming agent forms a large number of microbubbles in concrete, the mass of the concrete is reduced, the strength of the concrete is enhanced, the water absorption rate, the dry density and the heat conductivity coefficient can be reduced through the light closed-cell structure of the hollow microspheres, the strength of the concrete is enhanced through the filler, and the hydrophobic performance of the concrete is further improved through the water repellent organic polymer and the film-forming agent. Therefore, the heat preservation effect is improved, the process is simple and convenient, and popularization value is achieved.
本发明公开了超低吸水率轻质保温泡沫混凝土及其制备方法，属于沪宁图技术领域，其原料组成包括：水泥200‑260份、掺合料100‑140份、轻骨料150‑200份、氧化石墨烯30‑50份、中空微球10‑20份、有机聚合物5‑15份、填料20‑40份、发泡剂70‑90份、助剂20‑30份和水180‑220份；助剂以重量份计，其原料组成包括：稳泡剂5‑10份、减水剂3‑8份、硅烷偶联剂1‑5份、憎水剂2‑4份、成膜剂1‑3份、增稠剂2‑4份、速凝剂1‑3份。通过发泡剂发泡产生的泡沫在混凝土内形成大量微气泡，减小混凝土质量并强化强度，通过中空微球的轻质闭孔结构，可降低吸水率、干密度、导热系数，通过填料增强其强度，通过憎水剂有机聚合物以及成膜剂进一步提高混凝土的疏水性能，减小吸水性，从而提高保温效果，工艺简便，具有推广价值。
Ultralow-water-absorption lightweight thermal-insulation foam concrete and preparation method thereof
超低吸水率轻质保温泡沫混凝土及其制备方法
SHAN WENTING (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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