A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Nano hexagonal boron nitride modified cement-based double-slurry grouting material and preparation method thereof
The invention discloses a nanometer hexagonal boron nitride modified cement-based double-slurry grouting material which comprises a component A and a component B. The component A comprises cement, a retarder, a micro-expanding agent and nanometer modified h-BN, the component B comprises water glass, and the nanometer modified h-BN is prepared by ball-milling stripping and modification of h-BN. Non-ionic hydrophilic covalently-grafted nano hexagonal boron nitride is adopted as an externally-doped modified filler of the cement-water glass double-liquid-slurry grouting material, and interacts with auxiliaries such as a retarder and an expanding agent, so that the dispersion stability of nano boron nitride in cement-based grouting material slurry (in a high electrolyte environment) is improved, and the stability of the cement-based grouting material slurry is improved; the dispersion uniformity of nano hexagonal boron nitride in a stone body is further improved, effective stone components can be reserved, the overall compactness after grouting slurry is formed is improved, slurry dissolution is reduced, the ion exudation rate is inhibited, damage to the environment in the grouting implementation process is reduced, and ecological balance development can be maintained.
本发明公开一种纳米六方氮化硼改性水泥基双液浆注浆材料，注浆材料原料包括A组分和B组分，所述A组分原料包括水泥、缓凝剂、微膨胀剂和纳米改性h‑BN，所述B组分包括水玻璃，所述纳米改性h‑BN由h‑BN经球磨剥离和改性制得；采用非离子亲水化共价接枝的纳米六方氮化硼，作为水泥‑水玻璃双液浆注浆材料的外掺改性填料，并与缓凝剂、膨胀剂等助剂共同作用，提高纳米氮化硼在水泥基注浆材料浆体中(高电解质环境)的分散稳定性，进而提高结石体中纳米六方氮化硼的分散均匀性，能够保留有效结石成分，提高注浆浆液成型后整体密实度，且减少浆液溶出，抑制离子渗出速率，减少注浆实施过程对环境的损害，有利于维持生态平衡发展。
Nano hexagonal boron nitride modified cement-based double-slurry grouting material and preparation method thereof
The invention discloses a nanometer hexagonal boron nitride modified cement-based double-slurry grouting material which comprises a component A and a component B. The component A comprises cement, a retarder, a micro-expanding agent and nanometer modified h-BN, the component B comprises water glass, and the nanometer modified h-BN is prepared by ball-milling stripping and modification of h-BN. Non-ionic hydrophilic covalently-grafted nano hexagonal boron nitride is adopted as an externally-doped modified filler of the cement-water glass double-liquid-slurry grouting material, and interacts with auxiliaries such as a retarder and an expanding agent, so that the dispersion stability of nano boron nitride in cement-based grouting material slurry (in a high electrolyte environment) is improved, and the stability of the cement-based grouting material slurry is improved; the dispersion uniformity of nano hexagonal boron nitride in a stone body is further improved, effective stone components can be reserved, the overall compactness after grouting slurry is formed is improved, slurry dissolution is reduced, the ion exudation rate is inhibited, damage to the environment in the grouting implementation process is reduced, and ecological balance development can be maintained.
本发明公开一种纳米六方氮化硼改性水泥基双液浆注浆材料，注浆材料原料包括A组分和B组分，所述A组分原料包括水泥、缓凝剂、微膨胀剂和纳米改性h‑BN，所述B组分包括水玻璃，所述纳米改性h‑BN由h‑BN经球磨剥离和改性制得；采用非离子亲水化共价接枝的纳米六方氮化硼，作为水泥‑水玻璃双液浆注浆材料的外掺改性填料，并与缓凝剂、膨胀剂等助剂共同作用，提高纳米氮化硼在水泥基注浆材料浆体中(高电解质环境)的分散稳定性，进而提高结石体中纳米六方氮化硼的分散均匀性，能够保留有效结石成分，提高注浆浆液成型后整体密实度，且减少浆液溶出，抑制离子渗出速率，减少注浆实施过程对环境的损害，有利于维持生态平衡发展。
Nano hexagonal boron nitride modified cement-based double-slurry grouting material and preparation method thereof
一种纳米六方氮化硼改性水泥基双液浆注浆材料及其制备方法
ZHOU CHAO (author) / ZHANG XUEFU (author) / HAN FENGLEI (author) / ZHOU YUANFU (author) / XU JUNXIANG (author) / ZHANG SEN (author) / WANG XIN (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Graphene oxide nano-modified cement-based grouting material and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2024
| European Patent Office | 2023
Double-liquid grouting slurry and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2024