Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a preparation method of a concrete early strength agent, and belongs to the field of building materials. Aiming at the disadvantages that the traditional concrete early strength agent contains free chloride ions, is high in corrosion to buildings and affects human health and poor in effect at low temperature, non-free chloride ions are prepared by crushing montmorillonite, performing acid treatment, adding calcium oxalate to be adhered to treated montmorillonite powder and then adding polyacrylamide, triisopropanolamine and copper sulfate, and the concrete early strength agent is non-corrosive to buildings, and the effect of which is not affected in low-temperature condition. Experiments show that the preparation method is convenient and simple in preparation, and environmentally friendly and pollution-free, raw materials are easy to get, the method is convenient for operation, the use effect is not affected by temperature, the method is harmless for human health, and the concrete strength is improved by more than 98 percent within four days after the concrete early strength agent is used.
The invention relates to a preparation method of a concrete early strength agent, and belongs to the field of building materials. Aiming at the disadvantages that the traditional concrete early strength agent contains free chloride ions, is high in corrosion to buildings and affects human health and poor in effect at low temperature, non-free chloride ions are prepared by crushing montmorillonite, performing acid treatment, adding calcium oxalate to be adhered to treated montmorillonite powder and then adding polyacrylamide, triisopropanolamine and copper sulfate, and the concrete early strength agent is non-corrosive to buildings, and the effect of which is not affected in low-temperature condition. Experiments show that the preparation method is convenient and simple in preparation, and environmentally friendly and pollution-free, raw materials are easy to get, the method is convenient for operation, the use effect is not affected by temperature, the method is harmless for human health, and the concrete strength is improved by more than 98 percent within four days after the concrete early strength agent is used.
Concrete early strength agent and preparation method thereof
| Europäisches Patentamt | 2023
Early-strength water reducing agent for fabricated concrete, preparation method and concrete
| Europäisches Patentamt | 2022