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A platform for research: civil engineering, architecture and urbanism
Method for improving thermal stability of Portland cement
The invention discloses a method for improving the thermal stability of Portland cement. The method comprises the following steps: 1) adding 8-10 parts of anhydrite into 100 parts of Portland cement, and uniformly grinding; (2) adding 5-10% of sulphoaluminate cement into the mixture obtained in the step (1), and continuously grinding for 0.5-1 hour; and 3) adding 15-25% of fly ash into the mixture obtained in the step 2), and grinding for 2-3 hours. According to the invention, the stability of Portland cement in a high-temperature environment can be obviously improved.
本发明公开了一种提高硅酸盐水泥热稳定性的方法，包括如下步骤：1)以100份硅酸盐水泥计，向水泥中加入8‑10份无水石膏，粉磨均匀；2)向步骤1)中加入5‑10％的硫铝酸盐水泥，继续粉磨0.5‑1h；3)向步骤2)中加入15‑25％的粉煤灰，粉磨2‑3h。本发明能显著提高硅酸盐水泥在高温环境中的稳定性。
Method for improving thermal stability of Portland cement
The invention discloses a method for improving the thermal stability of Portland cement. The method comprises the following steps: 1) adding 8-10 parts of anhydrite into 100 parts of Portland cement, and uniformly grinding; (2) adding 5-10% of sulphoaluminate cement into the mixture obtained in the step (1), and continuously grinding for 0.5-1 hour; and 3) adding 15-25% of fly ash into the mixture obtained in the step 2), and grinding for 2-3 hours. According to the invention, the stability of Portland cement in a high-temperature environment can be obviously improved.
本发明公开了一种提高硅酸盐水泥热稳定性的方法，包括如下步骤：1)以100份硅酸盐水泥计，向水泥中加入8‑10份无水石膏，粉磨均匀；2)向步骤1)中加入5‑10％的硫铝酸盐水泥，继续粉磨0.5‑1h；3)向步骤2)中加入15‑25％的粉煤灰，粉磨2‑3h。本发明能显著提高硅酸盐水泥在高温环境中的稳定性。
Method for improving thermal stability of Portland cement
一种提高硅酸盐水泥热稳定性的方法
TAO JINGFANG (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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