A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Composite modifier as well as preparation method and application thereof
The invention discloses a composite modifier as well as a preparation method and application thereof, and belongs to the technical field of building materials. 75-80 parts of nano silica sol and 2-4 parts of a water reducing agent are uniformly mixed, 20-25 parts of deionized water is added, stirring, standing and oscillation are performed to obtain the composite modifier, and after the composite modifier is added into a common silicate grouting material, the high pH value of the external environment can be rapidly reduced, the rheological property of slurry is improved, rock mass cracks are sealed, and the service life of the grouting material is prolonged. Groundwater migration is prevented, and the stability of an engineering barrier system is further improved.
本发明公开一种复合改性剂及其制备方法与应用，属于建筑材料技术领域。将75‑80份纳米硅溶胶和2‑4份减水剂混合均匀，加入20‑25份去离子水，搅拌，静置，然后振荡，即得复合改性剂，将其加入普通硅酸盐注浆材料后，不仅能够快速降低外部环境的高酸碱度，还使浆体的流变性能得到改善，实现对岩体裂缝的封闭，阻止地下水运移，进一步提高工程屏障系统的稳定性。
Composite modifier as well as preparation method and application thereof
The invention discloses a composite modifier as well as a preparation method and application thereof, and belongs to the technical field of building materials. 75-80 parts of nano silica sol and 2-4 parts of a water reducing agent are uniformly mixed, 20-25 parts of deionized water is added, stirring, standing and oscillation are performed to obtain the composite modifier, and after the composite modifier is added into a common silicate grouting material, the high pH value of the external environment can be rapidly reduced, the rheological property of slurry is improved, rock mass cracks are sealed, and the service life of the grouting material is prolonged. Groundwater migration is prevented, and the stability of an engineering barrier system is further improved.
本发明公开一种复合改性剂及其制备方法与应用，属于建筑材料技术领域。将75‑80份纳米硅溶胶和2‑4份减水剂混合均匀，加入20‑25份去离子水，搅拌，静置，然后振荡，即得复合改性剂，将其加入普通硅酸盐注浆材料后，不仅能够快速降低外部环境的高酸碱度，还使浆体的流变性能得到改善，实现对岩体裂缝的封闭，阻止地下水运移，进一步提高工程屏障系统的稳定性。
Composite modifier as well as preparation method and application thereof
一种复合改性剂及其制备方法与应用
LIU JIANGFENG (author) / WANG PEILIN (author) / CHEN LIANG (author) / WANG JU (author) / MA HONGSU (author) / LIU JIAN (author) / ZHAO XINGGUANG (author) / MENG QINGBIN (author) / ZHANG XIANGYU (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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