Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preservative for concrete admixture and preparation method of preservative
The invention provides a preservative for a concrete admixture and a preparation method of the preservative. The preservative comprises the following components: p-aminobenzene sulfonic acid, p-hydroxybenzaldehyde, formaldehyde and sodium hydroxide in a molar ratio of 1:(1.1-1.3):(1.1-1.6):(1.3-1.4). The preservative disclosed by the invention is added into the concrete admixture, not only has better compatibility and better corrosion and mildew resistance with various concrete admixtures, but also can effectively inhibit growth and reproduction of microorganisms such as saccharomycetes, bacteria and molds. In addition, the preservative for the concrete admixture further has good water reducing performance, and the use cost of the preservative for the concrete admixture can be reduced. In the use process, the preservative has no adverse effect on the environment.
本发明提供了一种混凝土外加剂用防腐剂及其制备方法，所含组分及各组分的摩尔比如下：对氨基苯磺酸：对羟基苯甲醛：甲醛：氢氧化钠为1：1.1～1.3：1.1～1.6：1.3～1.4。本发明防腐剂添加到混凝土外加剂中，与各种混凝土外加剂不但具有较好的相容性和较好的防腐防霉变性能，还能有效抑制酵母菌、细菌和霉菌等微生物生长繁殖。而且所述混凝土外加剂用防腐剂还具有较好的减水性能，能够降低混凝土外加剂防腐剂的使用成本。本发明防腐剂在使用过程中，对环境没有不良影响。
Preservative for concrete admixture and preparation method of preservative
The invention provides a preservative for a concrete admixture and a preparation method of the preservative. The preservative comprises the following components: p-aminobenzene sulfonic acid, p-hydroxybenzaldehyde, formaldehyde and sodium hydroxide in a molar ratio of 1:(1.1-1.3):(1.1-1.6):(1.3-1.4). The preservative disclosed by the invention is added into the concrete admixture, not only has better compatibility and better corrosion and mildew resistance with various concrete admixtures, but also can effectively inhibit growth and reproduction of microorganisms such as saccharomycetes, bacteria and molds. In addition, the preservative for the concrete admixture further has good water reducing performance, and the use cost of the preservative for the concrete admixture can be reduced. In the use process, the preservative has no adverse effect on the environment.
本发明提供了一种混凝土外加剂用防腐剂及其制备方法，所含组分及各组分的摩尔比如下：对氨基苯磺酸：对羟基苯甲醛：甲醛：氢氧化钠为1：1.1～1.3：1.1～1.6：1.3～1.4。本发明防腐剂添加到混凝土外加剂中，与各种混凝土外加剂不但具有较好的相容性和较好的防腐防霉变性能，还能有效抑制酵母菌、细菌和霉菌等微生物生长繁殖。而且所述混凝土外加剂用防腐剂还具有较好的减水性能，能够降低混凝土外加剂防腐剂的使用成本。本发明防腐剂在使用过程中，对环境没有不良影响。
Preservative for concrete admixture and preparation method of preservative
一种混凝土外加剂用防腐剂及其制备方法
XU DAYONG (Autor:in) / ZENG JINTAO (Autor:in)
26.10.2021
Patent
Elektronische Ressource
Chinesisch
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