Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sulfoaluminate cement-based material for ocean repair and protection engineering and preparation method thereof
The invention discloses a sulfoaluminate cement-based material for ocean repair and protection engineering and a preparation method thereof, and belongs to the technical field of cement-based materials. The cement-based material is prepared from 100 parts of sulfoaluminate cement, 30 to 60 parts of fly ash, 10 to 40 parts of silica fume, 300 to 350 parts of a modified filler, 2 to 5 parts of an early strength agent, 1 to 3 parts of a water reducing agent, 0.02 to 0.04 part of an air entraining agent and 60 to 70 parts of water. The preparation method of the modified filler comprises the following steps: a, preparing a polyvinyl alcohol aqueous solution with the mass concentration of 3-4% to obtain a modifying solution; and b, soaking a filler composition in the modifying liquid for 1-2 h under stirring, then taking out the filler composition, and drying, wherein the filler composition comprises sand, diatomite and silicon carbide powder, which are evenly mixed according to the weight ratio of 1: (0.05-0.3): (0.02-0.2). The preparation method of the cement-based material comprises the following steps: a, preparing the modified filler; and b, uniformly mixing the raw materials at a stirring speed of 400 to 500 rpm for 5 to 10 min. The cement-based material has high strength and seawater corrosion resistance, and is suitable for being used as a repairing material of marine concrete.
本发明公开了一种海洋修补防护工程用硫铝酸盐水泥基材料及其制备方法，属于水泥基材料的技术领域。该水泥基材料包括硫铝酸盐水泥100份、粉煤灰30‑60份、硅灰10‑40份、改性填料300‑350份、早强剂2‑5份、减水剂1‑3份、引气剂0.02‑0.04份、水60‑70份。改性填料的制备：a，配制质量浓度为3‑4%的聚乙烯醇水溶液，得改性液；b，将填料组合物浸泡于改性液中，边搅拌边浸泡1‑2h，取出烘干即得，其中，填料组合物包括重量比为1:（0.05‑0.3）:（0.02‑0.2）且混合均匀的砂、硅藻土和碳化硅粉末。该水泥基材料的制备：a，制备改性填料；b，将各原料组分混合均匀即得，其中，搅拌速度为400‑500rpm，搅拌时间为5‑10min。该水泥基材料具有较高的强度和抗海水侵蚀性能，适于用作海洋混凝土的修补材料。
Sulfoaluminate cement-based material for ocean repair and protection engineering and preparation method thereof
The invention discloses a sulfoaluminate cement-based material for ocean repair and protection engineering and a preparation method thereof, and belongs to the technical field of cement-based materials. The cement-based material is prepared from 100 parts of sulfoaluminate cement, 30 to 60 parts of fly ash, 10 to 40 parts of silica fume, 300 to 350 parts of a modified filler, 2 to 5 parts of an early strength agent, 1 to 3 parts of a water reducing agent, 0.02 to 0.04 part of an air entraining agent and 60 to 70 parts of water. The preparation method of the modified filler comprises the following steps: a, preparing a polyvinyl alcohol aqueous solution with the mass concentration of 3-4% to obtain a modifying solution; and b, soaking a filler composition in the modifying liquid for 1-2 h under stirring, then taking out the filler composition, and drying, wherein the filler composition comprises sand, diatomite and silicon carbide powder, which are evenly mixed according to the weight ratio of 1: (0.05-0.3): (0.02-0.2). The preparation method of the cement-based material comprises the following steps: a, preparing the modified filler; and b, uniformly mixing the raw materials at a stirring speed of 400 to 500 rpm for 5 to 10 min. The cement-based material has high strength and seawater corrosion resistance, and is suitable for being used as a repairing material of marine concrete.
本发明公开了一种海洋修补防护工程用硫铝酸盐水泥基材料及其制备方法，属于水泥基材料的技术领域。该水泥基材料包括硫铝酸盐水泥100份、粉煤灰30‑60份、硅灰10‑40份、改性填料300‑350份、早强剂2‑5份、减水剂1‑3份、引气剂0.02‑0.04份、水60‑70份。改性填料的制备：a，配制质量浓度为3‑4%的聚乙烯醇水溶液，得改性液；b，将填料组合物浸泡于改性液中，边搅拌边浸泡1‑2h，取出烘干即得，其中，填料组合物包括重量比为1:（0.05‑0.3）:（0.02‑0.2）且混合均匀的砂、硅藻土和碳化硅粉末。该水泥基材料的制备：a，制备改性填料；b，将各原料组分混合均匀即得，其中，搅拌速度为400‑500rpm，搅拌时间为5‑10min。该水泥基材料具有较高的强度和抗海水侵蚀性能，适于用作海洋混凝土的修补材料。
Sulfoaluminate cement-based material for ocean repair and protection engineering and preparation method thereof
一种海洋修补防护工程用硫铝酸盐水泥基材料及其制备方法
LIU JIANGLIN (Autor:in) / DENG XIAOGANG (Autor:in) / HU YAXIN (Autor:in) / MAO SHENGYUN (Autor:in) / PENG RUOHONG (Autor:in)
15.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Development of Colored Sulfoaluminate Cement
| British Library Conference Proceedings | 1993
Sulfoaluminate Cement: An Alternative to Portland Cement
| Trans Tech Publications | 2011