Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a preparation process for quick-drying cement. The quick-drying cement is prepared from the following raw materials in parts by weight: 650-850 parts of cement clinker, 90-140parts of coal ash, 30-60 parts of silicon powder, 20-40 parts of superfine slag, 100-150 parts of gypsum, 15-25 parts of a calcium chloride/sodium nitrite complexing agent and 20-80 parts of auxiliaries. The initial setting time of the quick-drying cement is within 3 minutes, the final setting time is within 5 minutes, and the 28d compressive strength reaches 95.3 MPa. Compared with common cement,the setting time of the quick-drying cement is greatly shortened by the provided technical scheme, and the compression resistance is remarkably improved.
本发明公开一种速干水泥用制备工艺，速干水泥包括水泥熟料650‑850份、粉煤灰90‑140份、硅粉30‑60份、超细矿渣20‑40份、石膏100‑150份、氯化钙/亚硝酸钠复合剂15‑25份、助剂20‑80份，该种速干水泥初凝时间在3min以内，终凝时间在5min以内，28d抗压强度达到95.3MPa，与普通水泥相比，本发明提供的技术方案使得速干水泥的凝固时间大大缩短，抗压性能显著提升。
The invention discloses a preparation process for quick-drying cement. The quick-drying cement is prepared from the following raw materials in parts by weight: 650-850 parts of cement clinker, 90-140parts of coal ash, 30-60 parts of silicon powder, 20-40 parts of superfine slag, 100-150 parts of gypsum, 15-25 parts of a calcium chloride/sodium nitrite complexing agent and 20-80 parts of auxiliaries. The initial setting time of the quick-drying cement is within 3 minutes, the final setting time is within 5 minutes, and the 28d compressive strength reaches 95.3 MPa. Compared with common cement,the setting time of the quick-drying cement is greatly shortened by the provided technical scheme, and the compression resistance is remarkably improved.
本发明公开一种速干水泥用制备工艺，速干水泥包括水泥熟料650‑850份、粉煤灰90‑140份、硅粉30‑60份、超细矿渣20‑40份、石膏100‑150份、氯化钙/亚硝酸钠复合剂15‑25份、助剂20‑80份，该种速干水泥初凝时间在3min以内，终凝时间在5min以内，28d抗压强度达到95.3MPa，与普通水泥相比，本发明提供的技术方案使得速干水泥的凝固时间大大缩短，抗压性能显著提升。
Single-component quick-drying and quick-hardening cement
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2015
Anticorrosive quick-drying cement-based waterproof coating and preparation method thereof
| Europäisches Patentamt | 2020