A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses low thermal disturbance grouting slurry suitable for frozen soil construction and a preparation method thereof, and the low thermal disturbance grouting slurry comprises the following raw materials in parts by mass: 20-30 parts of sulphoaluminate cement, 35-40 parts of granulated blast furnace slag powder, 20-22.5 parts of metakaolin, 15-17.5 parts of an alkali activator with a slow release effect, 290-310 parts of fine aggregate, 30-35 parts of water, 3-4 parts of calcium nitrite and 0.4-0.6 part of a water reducing agent. And 0.02 to 0.04 part of triethanolamine. On the premise of guaranteeing strength development, hydration heat release is greatly reduced, and the problem that in the frozen soil environment, hydration heat release of cement in grouting slurry is rapid, heat release is large and concentrated, and thermal disturbance is caused to frozen soil is solved.
本发明公开了一种适用于冻土施工的低热扰动灌注浆及其制备方法，以质量份数计，其原料包括：硫铝酸盐水泥20‑30份，粒化高炉矿渣粉35‑40，偏高岭土20‑22.5份，具有缓释效果的碱激发剂15‑17.5份，细骨料290‑310份，水30‑35份，亚硝酸钙3‑4份，减水剂0.4‑0.6份，三乙醇胺0.02‑0.04份。本发明在保障强度发展的前提下大幅度减少水化放热量，解决了冻土环境下，灌注浆中水泥水化放热快速、放热量大且集中，导致对冻土造成热扰动的问题。
The invention discloses low thermal disturbance grouting slurry suitable for frozen soil construction and a preparation method thereof, and the low thermal disturbance grouting slurry comprises the following raw materials in parts by mass: 20-30 parts of sulphoaluminate cement, 35-40 parts of granulated blast furnace slag powder, 20-22.5 parts of metakaolin, 15-17.5 parts of an alkali activator with a slow release effect, 290-310 parts of fine aggregate, 30-35 parts of water, 3-4 parts of calcium nitrite and 0.4-0.6 part of a water reducing agent. And 0.02 to 0.04 part of triethanolamine. On the premise of guaranteeing strength development, hydration heat release is greatly reduced, and the problem that in the frozen soil environment, hydration heat release of cement in grouting slurry is rapid, heat release is large and concentrated, and thermal disturbance is caused to frozen soil is solved.
本发明公开了一种适用于冻土施工的低热扰动灌注浆及其制备方法，以质量份数计，其原料包括：硫铝酸盐水泥20‑30份，粒化高炉矿渣粉35‑40，偏高岭土20‑22.5份，具有缓释效果的碱激发剂15‑17.5份，细骨料290‑310份，水30‑35份，亚硝酸钙3‑4份，减水剂0.4‑0.6份，三乙醇胺0.02‑0.04份。本发明在保障强度发展的前提下大幅度减少水化放热量，解决了冻土环境下，灌注浆中水泥水化放热快速、放热量大且集中，导致对冻土造成热扰动的问题。
Low-thermal-disturbance grouting slurry suitable for frozen soil construction and preparation method of low-thermal-disturbance grouting slurry
一种适用于冻土施工的低热扰动灌注浆及其制备方法
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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