A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Expansive concrete for gradient composite wall and preparation method of expansive concrete
The invention relates to the technical field of building materials, and provides expansive concrete for a gradient composite wall and a preparation method thereof.The expansive concrete is prepared from, by mass, 136-255 parts of cement, 60-113 parts of fly ash, 740-990 parts of fine aggregate, 838-1777 parts of coarse aggregate, 18-27 parts of expanding agent, 5-10 parts of auxiliaries and 154-173 parts of water; the limited expansion coefficient epsilon e of the expansive concrete is not lower than 2.29 * 10 <-4 > and not higher than 3.90 * 10 <-4 >. The invention also provides a preparation method of the expansive concrete. According to the expansive concrete provided by the invention, the raw materials of the wall body structure and the expansive concrete are matched in proportion, so that structural deformation and cracking of the wall body in the construction process are avoided, and the problem of cracking of a long underground wall body structure, especially cracking of a super-long underground wall body in the prior art is solved.
本申请涉及建筑材料技术领域，提供了一种用于梯度组合墙体的膨胀混凝土及其制备方法，该膨胀混凝土所述膨胀混凝土包括以质量份数计的原料：水泥136～255份、粉煤灰60～113份、细集料740～990份、粗集料838～1777份，膨胀剂18～27份、助剂5～10份和水154～173份；所述膨胀混凝土限制膨胀系数εe不低于2.29×10‑4，且不高于3.90×10‑4。本申请还提供该膨胀混凝土的制备方法。本申请提供的膨胀混凝土将墙体结构和膨胀混凝土的原料配比进行配合，避免了墙体在施工过程中的结构变形开裂，解决了现有技术中长地下墙体结构开裂尤其是超长地下墙体开裂的问题。
Expansive concrete for gradient composite wall and preparation method of expansive concrete
The invention relates to the technical field of building materials, and provides expansive concrete for a gradient composite wall and a preparation method thereof.The expansive concrete is prepared from, by mass, 136-255 parts of cement, 60-113 parts of fly ash, 740-990 parts of fine aggregate, 838-1777 parts of coarse aggregate, 18-27 parts of expanding agent, 5-10 parts of auxiliaries and 154-173 parts of water; the limited expansion coefficient epsilon e of the expansive concrete is not lower than 2.29 * 10 <-4 > and not higher than 3.90 * 10 <-4 >. The invention also provides a preparation method of the expansive concrete. According to the expansive concrete provided by the invention, the raw materials of the wall body structure and the expansive concrete are matched in proportion, so that structural deformation and cracking of the wall body in the construction process are avoided, and the problem of cracking of a long underground wall body structure, especially cracking of a super-long underground wall body in the prior art is solved.
本申请涉及建筑材料技术领域，提供了一种用于梯度组合墙体的膨胀混凝土及其制备方法，该膨胀混凝土所述膨胀混凝土包括以质量份数计的原料：水泥136～255份、粉煤灰60～113份、细集料740～990份、粗集料838～1777份，膨胀剂18～27份、助剂5～10份和水154～173份；所述膨胀混凝土限制膨胀系数εe不低于2.29×10‑4，且不高于3.90×10‑4。本申请还提供该膨胀混凝土的制备方法。本申请提供的膨胀混凝土将墙体结构和膨胀混凝土的原料配比进行配合，避免了墙体在施工过程中的结构变形开裂，解决了现有技术中长地下墙体结构开裂尤其是超长地下墙体开裂的问题。
Expansive concrete for gradient composite wall and preparation method of expansive concrete
一种用于梯度组合墙体的膨胀混凝土及其制备方法
YU ZHIPENG (author) / DENG CHUNLIN (author) / YU FANG (author) / CUI GUANGCAI (author) / ZHAO WENZHUO (author) / WANG LIN (author) / ZHANG ZHI'AN (author) / YANG TAO (author) / LIU RONGGANG (author)
2024-04-26
Patent
Electronic Resource
Chinese
| European Patent Office | 2023