Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete rheology modifier as well as preparation method and application thereof
The invention discloses a concrete rheology modifier, a preparation method thereof and application of the concrete rheology modifier as a concrete additive, and the concrete rheology modifier is mainly prepared by polycondensation of a polyether macromonomer A, a polyether phosphate monomer B, an alkylbenzene monomer C and a phenylamide monomer D in the presence of an aldehyde monomer E. Compared with the current common rheology modifier in the field of concrete, the rheology modifier disclosed by the invention is simple and convenient in synthesis method, has good compatibility with a polycarboxylate superplasticizer, and has excellent salt and alkali resistance; the peaceability of fresh concrete can be effectively improved, separation, bleeding and sedimentation are avoided, and the slurry wrapping effect is good; the influence on the fluidity retention value of the concrete is small, the contradiction between the fluidity and segregation resistance of the fresh concrete can be effectively solved, and the additive is not sensitive to the mixing amount.
本发明公开了一种混凝土流变改性剂及其制备方法和作为混凝土添加剂的应用，所述混凝土流变改性剂主要是由聚醚大单体A、聚醚磷酸酯单体B、烷基苯类单体C和苯基酰胺单体D，在醛类单体E的存在下进行缩聚所得。与混凝土领域目前常用流变改性剂相比较，本发明所述流变改性剂合成方法简便，与聚羧酸减水剂有良好的相容性，且有优良的抗盐碱能力；能有效改善新拌混凝土的和易性，不离析，不泌水，不沉降，裹浆效果好；对混凝土流动度保留值影响小，即能有效解决新拌混凝土流动性和抗离析性之间矛盾，并且对掺量不敏感。
Concrete rheology modifier as well as preparation method and application thereof
The invention discloses a concrete rheology modifier, a preparation method thereof and application of the concrete rheology modifier as a concrete additive, and the concrete rheology modifier is mainly prepared by polycondensation of a polyether macromonomer A, a polyether phosphate monomer B, an alkylbenzene monomer C and a phenylamide monomer D in the presence of an aldehyde monomer E. Compared with the current common rheology modifier in the field of concrete, the rheology modifier disclosed by the invention is simple and convenient in synthesis method, has good compatibility with a polycarboxylate superplasticizer, and has excellent salt and alkali resistance; the peaceability of fresh concrete can be effectively improved, separation, bleeding and sedimentation are avoided, and the slurry wrapping effect is good; the influence on the fluidity retention value of the concrete is small, the contradiction between the fluidity and segregation resistance of the fresh concrete can be effectively solved, and the additive is not sensitive to the mixing amount.
本发明公开了一种混凝土流变改性剂及其制备方法和作为混凝土添加剂的应用，所述混凝土流变改性剂主要是由聚醚大单体A、聚醚磷酸酯单体B、烷基苯类单体C和苯基酰胺单体D，在醛类单体E的存在下进行缩聚所得。与混凝土领域目前常用流变改性剂相比较，本发明所述流变改性剂合成方法简便，与聚羧酸减水剂有良好的相容性，且有优良的抗盐碱能力；能有效改善新拌混凝土的和易性，不离析，不泌水，不沉降，裹浆效果好；对混凝土流动度保留值影响小，即能有效解决新拌混凝土流动性和抗离析性之间矛盾，并且对掺量不敏感。
Concrete rheology modifier as well as preparation method and application thereof
一种混凝土流变改性剂及其制备方法和应用
ZHAI SHUYING (Autor:in) / XING YABING (Autor:in) / YU HAO (Autor:in) / HU KAIWEI (Autor:in) / YANG XU (Autor:in) / LIN AZHEN (Autor:in) / HE LING (Autor:in)
26.11.2024
Patent
Elektronische Ressource
Chinesisch
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