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A platform for research: civil engineering, architecture and urbanism
Road base delayed coagulation cement and preparation method thereof
The invention discloses road base retarded cement and a preparation method thereof, and belongs to the technical field of building materials, the preparation method of the road base retarded cement comprises the following steps: preparing a cement retarder, preparing modified volcanic ash, preparing primary retarded cement, and preparing retarded cement; the preparation of the cement retarder comprises preparation of a primary mixture, primary coating and secondary coating; the preparation of the modified volcanic ash comprises the following steps: adding volcanic ash and a modifier into a powder mixer, and stirring to obtain the modified volcanic ash; according to the preparation method, high strength can be guaranteed, the viscosity of cement paste can be reduced, the high-temperature strength and temperature sensitivity of the cement are improved, and the lowest construction temperature of the retarded cement is reduced to 5 DEG C or below.
本发明公开了一种道路基层缓凝水泥及其制备方法，属于建筑材料技术领域，所述道路基层缓凝水泥的制备方法包括制备水泥缓凝剂，制备改性火山灰，制备初级缓凝水泥，制备缓凝水泥；所述制备水泥缓凝剂包括制备初混料，一次包覆，二次包覆；所述制备改性火山灰，将火山灰与改性剂加入混粉机中搅拌，得到改性火山灰；本发明的制备方法既能够保证高强度，同时还能够降低水泥浆稠度，提高水泥的高温强度和对温度的敏感性，将缓凝水泥的最低施工温度降低至5℃以下。
Road base delayed coagulation cement and preparation method thereof
The invention discloses road base retarded cement and a preparation method thereof, and belongs to the technical field of building materials, the preparation method of the road base retarded cement comprises the following steps: preparing a cement retarder, preparing modified volcanic ash, preparing primary retarded cement, and preparing retarded cement; the preparation of the cement retarder comprises preparation of a primary mixture, primary coating and secondary coating; the preparation of the modified volcanic ash comprises the following steps: adding volcanic ash and a modifier into a powder mixer, and stirring to obtain the modified volcanic ash; according to the preparation method, high strength can be guaranteed, the viscosity of cement paste can be reduced, the high-temperature strength and temperature sensitivity of the cement are improved, and the lowest construction temperature of the retarded cement is reduced to 5 DEG C or below.
本发明公开了一种道路基层缓凝水泥及其制备方法，属于建筑材料技术领域，所述道路基层缓凝水泥的制备方法包括制备水泥缓凝剂，制备改性火山灰，制备初级缓凝水泥，制备缓凝水泥；所述制备水泥缓凝剂包括制备初混料，一次包覆，二次包覆；所述制备改性火山灰，将火山灰与改性剂加入混粉机中搅拌，得到改性火山灰；本发明的制备方法既能够保证高强度，同时还能够降低水泥浆稠度，提高水泥的高温强度和对温度的敏感性，将缓凝水泥的最低施工温度降低至5℃以下。
Road base delayed coagulation cement and preparation method thereof
一种道路基层缓凝水泥及其制备方法
GU CHUANXIN (author) / GUO YANLI (author)
2022-05-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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