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A platform for research: civil engineering, architecture and urbanism
Liquid tackifier for sprayed concrete as well as preparation method and application of liquid tackifier
The invention discloses a liquid tackifier for sprayed concrete and a preparation method and application thereof.The liquid tackifier for sprayed concrete is prepared from, by mass, 600-700 parts of modified latex powder solution, 50-100 parts of fumed silica, 30-50 parts of nano calcium silicate hydrate, 20-50 parts of synergist, 20-50 parts of coagulant, 5-10 parts of suspension stabilizer, 1-3 parts of retarder and 0.5-1 part of defoaming agent, the modified latex powder is mainly used for effectively improving the bonding capacity of the latex powder, improving the viscosity of slurry and increasing the shear stress of the slurry, so that the bonding capacity of the slurry and aggregate is improved, the slurry and the aggregate can be tightly attached to surrounding rock, the rebound rate is reduced, and the overall safety of a sprayed concrete primary support is improved; the mass fraction of the liquid tackifier for the sprayed concrete is further limited, so that the liquid tackifier can effectively improve the rebound amount and the strength of the sprayed concrete while reducing the gas content of the sprayed concrete.
本发明公开一种喷射混凝土用液体增粘剂及其制备方法和应用，所述喷射混凝土用液体增粘剂，按照质量份数计，包括改性乳胶粉溶液600～700份、气相二氧化硅50～100份、纳米水化硅酸钙30～50份、增效剂20～50份、促凝剂20～50份、悬浮稳定剂5～10份、缓凝剂1～3、消泡剂0.5～1份，其中，所述改性乳胶粉的的主要作用是可以有效提高乳胶粉的粘接能力，提高浆体的粘度，增大浆体的剪切应力，从而提高浆体与骨料的粘接能力，使浆体与骨料都能紧密附着在围岩上，降低回弹率，提升喷射混凝土初支的整体安全性，同时，进一步限制喷射混凝土用液体增粘剂的质量份数，使得该液体增粘剂减少喷射混凝土的含气量的同时，且能有效提高喷射混凝土的回弹量和强度。
Liquid tackifier for sprayed concrete as well as preparation method and application of liquid tackifier
The invention discloses a liquid tackifier for sprayed concrete and a preparation method and application thereof.The liquid tackifier for sprayed concrete is prepared from, by mass, 600-700 parts of modified latex powder solution, 50-100 parts of fumed silica, 30-50 parts of nano calcium silicate hydrate, 20-50 parts of synergist, 20-50 parts of coagulant, 5-10 parts of suspension stabilizer, 1-3 parts of retarder and 0.5-1 part of defoaming agent, the modified latex powder is mainly used for effectively improving the bonding capacity of the latex powder, improving the viscosity of slurry and increasing the shear stress of the slurry, so that the bonding capacity of the slurry and aggregate is improved, the slurry and the aggregate can be tightly attached to surrounding rock, the rebound rate is reduced, and the overall safety of a sprayed concrete primary support is improved; the mass fraction of the liquid tackifier for the sprayed concrete is further limited, so that the liquid tackifier can effectively improve the rebound amount and the strength of the sprayed concrete while reducing the gas content of the sprayed concrete.
本发明公开一种喷射混凝土用液体增粘剂及其制备方法和应用，所述喷射混凝土用液体增粘剂，按照质量份数计，包括改性乳胶粉溶液600～700份、气相二氧化硅50～100份、纳米水化硅酸钙30～50份、增效剂20～50份、促凝剂20～50份、悬浮稳定剂5～10份、缓凝剂1～3、消泡剂0.5～1份，其中，所述改性乳胶粉的的主要作用是可以有效提高乳胶粉的粘接能力，提高浆体的粘度，增大浆体的剪切应力，从而提高浆体与骨料的粘接能力，使浆体与骨料都能紧密附着在围岩上，降低回弹率，提升喷射混凝土初支的整体安全性，同时，进一步限制喷射混凝土用液体增粘剂的质量份数，使得该液体增粘剂减少喷射混凝土的含气量的同时，且能有效提高喷射混凝土的回弹量和强度。
Liquid tackifier for sprayed concrete as well as preparation method and application of liquid tackifier
一种喷射混凝土用液体增粘剂及其制备方法和应用
ZHANG QIANG (author) / LIANG WEI (author) / CHEN JIALIANG (author) / CHEN YUYING (author) / DONG PENG (author) / WAN HAILUN (author) / XU QING (author) / LI YANG (author) / CHEN YONGSHENG (author) / PENG LIWEN (author)
2024-04-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
British Library Online Contents | 2003
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