Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Regenerated coarse aggregate early-strength low-resilience sprayed concrete and preparation method thereof
The invention discloses recycled coarse aggregate early-strength low-resilience sprayed concrete and a preparation method thereof, and belongs to the technical field of building materials. The recycled coarse aggregate early-strength low-resilience sprayed concrete is prepared from the following components in parts by weight: 450 to 500 parts of cement, 800 to 910 parts of fine aggregate, 800 to 920 parts of coarse aggregate, 15 to 25 parts of an exciting agent, 160 to 190 parts of water, 4.5 to 10 parts of a water reducing agent and 27 to 45 parts of an accelerator, the used coarse aggregate is regenerated hardened concrete, and the exciting agent is a special material. The recycled coarse aggregate early-strength low-resilience shotcrete provided by the invention is high in cohesiveness, strong in cohesion and high in early strength, is more easily adhered to the surface of surrounding rock when being sprayed to tunnel surrounding rock or a side slope, is not easy to fall off, and is low in resilience rate.
本发明公开了一种再生粗骨料早强低回弹喷射混凝土及其制备方法，属于建筑材料技术领域。所述再生粗骨料早强低回弹喷射混凝土的组分按重量份计，包括：水泥450~500份、细骨料800~910份、粗骨料800~920份、激发剂15~25份、水160~190份、减水剂4.5~10份和速凝剂27~45份；所使用的粗骨料为再生硬化混凝土，激发剂为本发明特制材料。本发明提供的再生粗骨料早强低回弹喷射混凝土粘聚性高、内聚力强、早期强度高，喷射到隧道围岩上或者边坡上，更容易粘结到围岩表面，不易掉落，且回弹率低。
Regenerated coarse aggregate early-strength low-resilience sprayed concrete and preparation method thereof
The invention discloses recycled coarse aggregate early-strength low-resilience sprayed concrete and a preparation method thereof, and belongs to the technical field of building materials. The recycled coarse aggregate early-strength low-resilience sprayed concrete is prepared from the following components in parts by weight: 450 to 500 parts of cement, 800 to 910 parts of fine aggregate, 800 to 920 parts of coarse aggregate, 15 to 25 parts of an exciting agent, 160 to 190 parts of water, 4.5 to 10 parts of a water reducing agent and 27 to 45 parts of an accelerator, the used coarse aggregate is regenerated hardened concrete, and the exciting agent is a special material. The recycled coarse aggregate early-strength low-resilience shotcrete provided by the invention is high in cohesiveness, strong in cohesion and high in early strength, is more easily adhered to the surface of surrounding rock when being sprayed to tunnel surrounding rock or a side slope, is not easy to fall off, and is low in resilience rate.
本发明公开了一种再生粗骨料早强低回弹喷射混凝土及其制备方法，属于建筑材料技术领域。所述再生粗骨料早强低回弹喷射混凝土的组分按重量份计，包括：水泥450~500份、细骨料800~910份、粗骨料800~920份、激发剂15~25份、水160~190份、减水剂4.5~10份和速凝剂27~45份；所使用的粗骨料为再生硬化混凝土，激发剂为本发明特制材料。本发明提供的再生粗骨料早强低回弹喷射混凝土粘聚性高、内聚力强、早期强度高，喷射到隧道围岩上或者边坡上，更容易粘结到围岩表面，不易掉落，且回弹率低。
Regenerated coarse aggregate early-strength low-resilience sprayed concrete and preparation method thereof
一种再生粗骨料早强低回弹喷射混凝土及其制备方法
LIU LEI (Autor:in) / WANG JINCHUN (Autor:in) / LYU DONGWEI (Autor:in) / DONG SHUQIANG (Autor:in) / ZHANG JUN (Autor:in) / TAN ZHENHUA (Autor:in) / FANG TAO (Autor:in) / LUO XIN (Autor:in) / WANG MINGYAN (Autor:in) / LIU YALIANG (Autor:in)
20.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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