Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Retarded high-strength ordinary Portland cement and preparation method and application thereof
The invention provides retarded high-strength ordinary Portland cement and a preparation method and application thereof, and the retarded high-strength ordinary Portland cement is a hydraulic cementing material which is developed by using unmodified phosphogypsum, desulfurized gypsum and wet fly ash obtained from industrial wastes and has the remarkable characteristics of long setting time, high later strength and no shrinkage. The cement can be used for replacing slaked lime with the particle size not larger than 5 mm to be used in road cushion construction, the hardness and strength of the road cushion are improved, the cement setting time meets the road cushion construction requirement, cracks generated by too fast strength increase or temperature difference after road base construction are effectively reduced, and the service life of a roadbed is prolonged; the industrial waste is used as the retarding material, so that the burden of the environment is relieved, the cost is reduced, the consumption of resources is reduced, the development trend of road construction in the current society is met, and good economic benefits and social benefits are achieved.
提供一种缓凝高强普通硅酸盐水泥及其制备方法和用途，是利用工业废弃物中获取的未改性磷石膏、脱硫石膏及湿粉煤灰研制的一种具有凝结时间长、后期强度高且不倒缩的显著特点的水硬性胶凝材料，可以用来替代粒径不大于5mm的消石灰在道路垫层施工中使用，不但提高道路垫层的硬度和强度，使水泥凝结时间符合道路垫层施工要求，有效减少道路基层在施工后因强度增长过快或温差作用而产生裂缝，延长路基的使用寿命；而且利用工业废弃物作为缓凝材料，减轻了环境的负担，降低成本，减少资源的消耗，符合当前社会道路建设的发展趋势，具有良好的经济效益和社会效益。
Retarded high-strength ordinary Portland cement and preparation method and application thereof
The invention provides retarded high-strength ordinary Portland cement and a preparation method and application thereof, and the retarded high-strength ordinary Portland cement is a hydraulic cementing material which is developed by using unmodified phosphogypsum, desulfurized gypsum and wet fly ash obtained from industrial wastes and has the remarkable characteristics of long setting time, high later strength and no shrinkage. The cement can be used for replacing slaked lime with the particle size not larger than 5 mm to be used in road cushion construction, the hardness and strength of the road cushion are improved, the cement setting time meets the road cushion construction requirement, cracks generated by too fast strength increase or temperature difference after road base construction are effectively reduced, and the service life of a roadbed is prolonged; the industrial waste is used as the retarding material, so that the burden of the environment is relieved, the cost is reduced, the consumption of resources is reduced, the development trend of road construction in the current society is met, and good economic benefits and social benefits are achieved.
提供一种缓凝高强普通硅酸盐水泥及其制备方法和用途，是利用工业废弃物中获取的未改性磷石膏、脱硫石膏及湿粉煤灰研制的一种具有凝结时间长、后期强度高且不倒缩的显著特点的水硬性胶凝材料，可以用来替代粒径不大于5mm的消石灰在道路垫层施工中使用，不但提高道路垫层的硬度和强度，使水泥凝结时间符合道路垫层施工要求，有效减少道路基层在施工后因强度增长过快或温差作用而产生裂缝，延长路基的使用寿命；而且利用工业废弃物作为缓凝材料，减轻了环境的负担，降低成本，减少资源的消耗，符合当前社会道路建设的发展趋势，具有良好的经济效益和社会效益。
Retarded high-strength ordinary Portland cement and preparation method and application thereof
一种缓凝高强普通硅酸盐水泥及其制备方法和用途
WANG GUOFEI (Autor:in) / CHEN HONGTAO (Autor:in) / CAI XIAOLI (Autor:in) / MAO YULAN (Autor:in) / SHI YUNJUAN (Autor:in) / BAI CHAOHUI (Autor:in) / WU PEILIANG (Autor:in) / WANG BINBIN (Autor:in)
04.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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