A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
C25-35 recycled aggregate concrete for prefabricated building and design method of C25-35 recycled aggregate concrete
The invention discloses C25-35 recycled aggregate concrete for a prefabricated building and a design method of the C25-35 recycled aggregate concrete, and relates to the technical field of concrete.The C25-35 recycled aggregate concrete is characterized by being prepared from, by weight, 320-432 parts of gel materials; 1735 parts of an aggregate composition; and 3.2-10.4 parts of an additive; wherein the gel material comprises cement and a mineral admixture according to a weight part ratio of (31-40): (10-19), and the 28d compressive strength is not less than 27.4 MPa; the aggregate composition comprises raw sand and recycled aggregate in a weight part ratio of 9: 11; the raw sand is natural sand and machine-made sand; the additive is a polycarboxylic acid high-performance water reducing agent. According to the invention, the recycled aggregate concrete is prepared from the corresponding components in parts by weight, so that the recycled aggregate concrete with high mechanical and durability is obtained, and the effect of effectively utilizing and absorbing the recycled aggregate prepared from the building disassembly garbage is achieved.
本发明公开了一种装配式建筑用C25‑35再生骨料混凝土及其设计方法，涉及混凝土技术领域，其技术方案要点包括如下重量份的组分：凝胶材料320‑432份；骨料组合物1735份；外加剂3.2‑10.4份；其中，所述凝胶材料包括按重量份比为31‑40:10‑19的水泥与矿物掺合料，且28d抗压强度不小于27.4MPa；所述骨料组合物包括按重量份比为9:11的原生砂与再生骨料；所述原生砂为天然砂和机制砂；所述外加剂为聚羧酸系高性能减水剂。本发明通过采用相应的重量份组分进行再生骨料混凝土的制备，在获取力学与耐久性能高的再生骨料混凝土的同时，具有有效利用并消纳建筑拆解垃圾制备的再生骨料的效果。
C25-35 recycled aggregate concrete for prefabricated building and design method of C25-35 recycled aggregate concrete
The invention discloses C25-35 recycled aggregate concrete for a prefabricated building and a design method of the C25-35 recycled aggregate concrete, and relates to the technical field of concrete.The C25-35 recycled aggregate concrete is characterized by being prepared from, by weight, 320-432 parts of gel materials; 1735 parts of an aggregate composition; and 3.2-10.4 parts of an additive; wherein the gel material comprises cement and a mineral admixture according to a weight part ratio of (31-40): (10-19), and the 28d compressive strength is not less than 27.4 MPa; the aggregate composition comprises raw sand and recycled aggregate in a weight part ratio of 9: 11; the raw sand is natural sand and machine-made sand; the additive is a polycarboxylic acid high-performance water reducing agent. According to the invention, the recycled aggregate concrete is prepared from the corresponding components in parts by weight, so that the recycled aggregate concrete with high mechanical and durability is obtained, and the effect of effectively utilizing and absorbing the recycled aggregate prepared from the building disassembly garbage is achieved.
本发明公开了一种装配式建筑用C25‑35再生骨料混凝土及其设计方法，涉及混凝土技术领域，其技术方案要点包括如下重量份的组分：凝胶材料320‑432份；骨料组合物1735份；外加剂3.2‑10.4份；其中，所述凝胶材料包括按重量份比为31‑40:10‑19的水泥与矿物掺合料，且28d抗压强度不小于27.4MPa；所述骨料组合物包括按重量份比为9:11的原生砂与再生骨料；所述原生砂为天然砂和机制砂；所述外加剂为聚羧酸系高性能减水剂。本发明通过采用相应的重量份组分进行再生骨料混凝土的制备，在获取力学与耐久性能高的再生骨料混凝土的同时，具有有效利用并消纳建筑拆解垃圾制备的再生骨料的效果。
C25-35 recycled aggregate concrete for prefabricated building and design method of C25-35 recycled aggregate concrete
一种装配式建筑用C25-35再生骨料混凝土及其设计方法
CHEN PEIBIAO (author) / LIU GANG (author) / ZHANG DACAI (author) / HUO JIN (author) / ZHU WEIDONG (author) / JIN WANGZHOU (author) / LIU WANPING (author)
2021-05-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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