Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Marine work Portland cement and preparation method thereof
The invention provides maritime work Portland cement and a preparation method thereof. The maritime work Portland cement is prepared from, by mass, 30%-40% of silicon dioxide, 30%-40% of mineral powder, 8%-12% of gypsum, 8%-15% of metakaolin, 5%-10% of fly ash, 1%-4% of aluminum oxide micro powder, 5%-8% of sodium silicate powder and 0.5%-2% of anhydrous calcium sulfate powder. According to the invention, each index far exceeds the national standard, the compressive strength within 2 hours can reach 47.8 Mpa, especially the compressive strength within 24 hours reaches the strength of 28 days in the national standard, and the performance advantage is very obvious; the weather resistance, chloride ion penetration resistance, sulfate corrosion resistance, light weight and high strength are achieved, the service life of facilities can be prolonged by 2-5 times, and the maintenance cost is greatly saved; the maritime work Portland cement is resistant to scouring, good in durability and not prone to cracking again; the hydration heat is low, the temperature change is small, and cracks are not easy to generate; early strength and rapid hardening are achieved, the bonding performance with a base is good, and the compression resistance is good; and application is wide, and cost is low.
本发明提供了一种海工硅酸盐水泥及其制备方法，包括如下质量百分比组分：二氧化硅30％～40％、矿石粉30％～40％、石膏8％～12％、偏高岭土8％～15％、粉煤灰5％～10％、氧化铝微粉1％～4％、硅酸钠粉5％～8％、无水硫酸钙粉0.5％～2％。本发明各项指标远超国家标准，2小时抗压强度可达47.8Mpa，尤其是24h抗压强度达到国家标准28天的强度，性能优势非常明显；耐候性强，耐氯离子渗透、抗硫酸盐腐蚀、轻质高强，设施使用寿命可延长2‑5倍，大大节省了维护成本；具有耐冲刷、耐久性好，不易再次开裂；低水化热，温度变化小，不易产生裂痕；早强快硬，与基地粘结性能好，抗压性能好；应用广泛，成本低廉。
Marine work Portland cement and preparation method thereof
The invention provides maritime work Portland cement and a preparation method thereof. The maritime work Portland cement is prepared from, by mass, 30%-40% of silicon dioxide, 30%-40% of mineral powder, 8%-12% of gypsum, 8%-15% of metakaolin, 5%-10% of fly ash, 1%-4% of aluminum oxide micro powder, 5%-8% of sodium silicate powder and 0.5%-2% of anhydrous calcium sulfate powder. According to the invention, each index far exceeds the national standard, the compressive strength within 2 hours can reach 47.8 Mpa, especially the compressive strength within 24 hours reaches the strength of 28 days in the national standard, and the performance advantage is very obvious; the weather resistance, chloride ion penetration resistance, sulfate corrosion resistance, light weight and high strength are achieved, the service life of facilities can be prolonged by 2-5 times, and the maintenance cost is greatly saved; the maritime work Portland cement is resistant to scouring, good in durability and not prone to cracking again; the hydration heat is low, the temperature change is small, and cracks are not easy to generate; early strength and rapid hardening are achieved, the bonding performance with a base is good, and the compression resistance is good; and application is wide, and cost is low.
本发明提供了一种海工硅酸盐水泥及其制备方法，包括如下质量百分比组分：二氧化硅30％～40％、矿石粉30％～40％、石膏8％～12％、偏高岭土8％～15％、粉煤灰5％～10％、氧化铝微粉1％～4％、硅酸钠粉5％～8％、无水硫酸钙粉0.5％～2％。本发明各项指标远超国家标准，2小时抗压强度可达47.8Mpa，尤其是24h抗压强度达到国家标准28天的强度，性能优势非常明显；耐候性强，耐氯离子渗透、抗硫酸盐腐蚀、轻质高强，设施使用寿命可延长2‑5倍，大大节省了维护成本；具有耐冲刷、耐久性好，不易再次开裂；低水化热，温度变化小，不易产生裂痕；早强快硬，与基地粘结性能好，抗压性能好；应用广泛，成本低廉。
Marine work Portland cement and preparation method thereof
一种海工硅酸盐水泥及其制备方法
SUN CHAOXI (Autor:in) / YANG HUAN (Autor:in) / YANG CHENGJUN (Autor:in) / LIU XU (Autor:in) / ZHOU WEIWEI (Autor:in)
17.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME