Concrete rheological preservative and preparation method thereof

The invention discloses a preparation method of a concrete rheological preservative, the concrete rheological preservative comprises, by weight, 8-12 parts of fly ash, 3-4 parts of siloxane, 0.5-0.7 part of sodium diacetate, 3-5 parts of methacrylic acid, 14-16 parts of alunite and 8-10 parts of borax, the alunite is calcined at a high temperature and then mixed with siloxane to prepare a mixed material 1, the mixed material 1 is mixed with other components, and the concrete rheological preservative is prepared. According to the concrete rheological preservative disclosed by the invention, the concrete rheological preservative and concrete raw materials are mixed for use, so that the properties of corrosion resistance, permeation prevention and the like of concrete can be improved. 本发明公开了一种混凝土流变防腐剂的制备方法，按重量份计，包括8-12份粉煤灰、3-4份硅氧烷、0.5-0.7份双乙酸钠、3-5份甲基丙烯酸、14-16份明矾石和8-10份硼砂，将明矾石高温煅烧后和硅氧烷混合制得混合物料1，混合物料1和其余组分混合，烘干制得的混凝土流变防腐剂，本发明混凝土流变防腐剂和混凝土原料混合使用，能够提高混凝土的耐腐蚀、防渗透等性能。