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Tunnel high-strength sprayed concrete and preparation method thereof
The invention relates to the field of high-strength concrete, and particularly discloses tunnel high-strength sprayed concrete and a preparation method thereof, and the tunnel high-strength sprayed concrete comprises the following raw materials by weight: 100-180 parts of cement, 60-90 parts of water, 260-500 parts of aggregate, 0.1-0.35 part of a coupling agent, 20-35 parts of setting control particles, and 30-50 parts of reinforcing particles; the reinforced particles comprise cyclodextrin and a composite admixture. The preparation method of the sprayed concrete comprises the following steps: S1, preparation of reinforced particles: dissolving cyclodextrin in water to form a saturated aqueous solution, adding a composite admixture, stirring for inclusion, and drying to obtain the reinforced particles; and S2, uniformly premixing the coagulation regulating particles, the reinforcing particles and the coupling agent, adding the mixture into cement and aggregate, finally adding water, and uniformly stirring to obtain the sprayed concrete. The obtained sprayed concrete not only has good compressive strength, can meet the performance requirement of high strength, but also has excellent flowability and good pumpability.
本申请涉及高强度混凝土领域，具体公开了一种隧道高强度喷射混凝土及其制备方法，其包括以下重量份的原料：水泥100‑180份，水60‑90份，骨料260‑500份，偶联剂0.1‑0.35份，调凝颗粒20‑35份，增强颗粒30‑50份；所述增强颗粒包括环糊精和复合掺合料。喷射混凝土的制备方法包括以下步骤：S1增强颗粒制备：将环糊精溶于水形成饱和水溶液，加入复合掺合料搅拌包合，经干燥后得到增强颗粒；S2，将调凝颗粒、增强颗粒与偶联剂预混均匀，加入水泥和骨料中，最后加入水搅拌均匀，得到喷射混凝土。得到的喷射混凝土不仅抗压强度佳，能够满足高强度的性能要求，还具有优异的流动性，可泵送性佳。
Tunnel high-strength sprayed concrete and preparation method thereof
The invention relates to the field of high-strength concrete, and particularly discloses tunnel high-strength sprayed concrete and a preparation method thereof, and the tunnel high-strength sprayed concrete comprises the following raw materials by weight: 100-180 parts of cement, 60-90 parts of water, 260-500 parts of aggregate, 0.1-0.35 part of a coupling agent, 20-35 parts of setting control particles, and 30-50 parts of reinforcing particles; the reinforced particles comprise cyclodextrin and a composite admixture. The preparation method of the sprayed concrete comprises the following steps: S1, preparation of reinforced particles: dissolving cyclodextrin in water to form a saturated aqueous solution, adding a composite admixture, stirring for inclusion, and drying to obtain the reinforced particles; and S2, uniformly premixing the coagulation regulating particles, the reinforcing particles and the coupling agent, adding the mixture into cement and aggregate, finally adding water, and uniformly stirring to obtain the sprayed concrete. The obtained sprayed concrete not only has good compressive strength, can meet the performance requirement of high strength, but also has excellent flowability and good pumpability.
本申请涉及高强度混凝土领域，具体公开了一种隧道高强度喷射混凝土及其制备方法，其包括以下重量份的原料：水泥100‑180份，水60‑90份，骨料260‑500份，偶联剂0.1‑0.35份，调凝颗粒20‑35份，增强颗粒30‑50份；所述增强颗粒包括环糊精和复合掺合料。喷射混凝土的制备方法包括以下步骤：S1增强颗粒制备：将环糊精溶于水形成饱和水溶液，加入复合掺合料搅拌包合，经干燥后得到增强颗粒；S2，将调凝颗粒、增强颗粒与偶联剂预混均匀，加入水泥和骨料中，最后加入水搅拌均匀，得到喷射混凝土。得到的喷射混凝土不仅抗压强度佳，能够满足高强度的性能要求，还具有优异的流动性，可泵送性佳。
Tunnel high-strength sprayed concrete and preparation method thereof
一种隧道高强度喷射混凝土及其制备方法
PAN FENG (author) / HU JIAN (author) / SONG YAFEI (author) / YANG YUNGUANG (author) / YUAN XINTONG (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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