A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled concrete viscosity modifier as well as preparation method and use method thereof
The invention belongs to the technical field of constructional engineering, and relates to a recycled concrete viscosity modifier as well as a preparation method and a use method thereof. The epoxy resin composition comprises the following components in parts by mass: 40-80 parts of polybutadiene epoxy resin; 3-10 parts of a functional polymer; 3-20 parts of a condensing agent; 2-5 parts of an amino compound; 2-10 parts of a stabilizer; 10 to 15 parts of water; the viscosity modifier is subjected to CO2 curing, and the viscosity modifier is water-soluble. The water-soluble viscosity modifier is prepared through chemical reaction of polybutadiene epoxy resin and an auxiliary agent under the action of water serving as a solvent, and in the preparation process of CO2 curing recycled concrete, the viscosity modifier is subjected to carbonization reaction with CO2, can permeate into concrete pores and react with cement colloid and the surface of aggregate, so that the viscosity of the recycled concrete is improved. Therefore, the solubility of the viscosity modifier is further improved, and the stability of the polymer is improved. The cohesiveness between the cement paste and the recycled aggregate is enhanced, and cracks are reduced.
本发明属于建筑工程技术领域，涉及一种再生混凝土粘度调节剂、制备方法及其使用方法。按照质量份数计，包括如下各组分：聚丁二烯环氧树脂40~80份；功能性聚合物3~10份；缩合剂3~20份；胺基化合物2~5份；稳定剂2~10份；水10~15份；所述粘度调节剂经过CO2养护，所述粘度调节剂为水溶性。本发明通过将聚丁二烯环氧树脂与辅助剂在溶剂为水的作用下，发生化学反应，制备水溶性的粘度调节剂，在CO2养护再生混凝土的制备过程中，粘度调节剂与CO2碳化反应，能够渗透进混凝土孔隙中，与水泥胶体和骨料表面发生反应，从而进一步改善粘度调节剂的溶解性、增加聚合物的稳定性。增强水泥浆体与再生骨料之间的粘结性，减少裂缝。
Recycled concrete viscosity modifier as well as preparation method and use method thereof
The invention belongs to the technical field of constructional engineering, and relates to a recycled concrete viscosity modifier as well as a preparation method and a use method thereof. The epoxy resin composition comprises the following components in parts by mass: 40-80 parts of polybutadiene epoxy resin; 3-10 parts of a functional polymer; 3-20 parts of a condensing agent; 2-5 parts of an amino compound; 2-10 parts of a stabilizer; 10 to 15 parts of water; the viscosity modifier is subjected to CO2 curing, and the viscosity modifier is water-soluble. The water-soluble viscosity modifier is prepared through chemical reaction of polybutadiene epoxy resin and an auxiliary agent under the action of water serving as a solvent, and in the preparation process of CO2 curing recycled concrete, the viscosity modifier is subjected to carbonization reaction with CO2, can permeate into concrete pores and react with cement colloid and the surface of aggregate, so that the viscosity of the recycled concrete is improved. Therefore, the solubility of the viscosity modifier is further improved, and the stability of the polymer is improved. The cohesiveness between the cement paste and the recycled aggregate is enhanced, and cracks are reduced.
本发明属于建筑工程技术领域，涉及一种再生混凝土粘度调节剂、制备方法及其使用方法。按照质量份数计，包括如下各组分：聚丁二烯环氧树脂40~80份；功能性聚合物3~10份；缩合剂3~20份；胺基化合物2~5份；稳定剂2~10份；水10~15份；所述粘度调节剂经过CO2养护，所述粘度调节剂为水溶性。本发明通过将聚丁二烯环氧树脂与辅助剂在溶剂为水的作用下，发生化学反应，制备水溶性的粘度调节剂，在CO2养护再生混凝土的制备过程中，粘度调节剂与CO2碳化反应，能够渗透进混凝土孔隙中，与水泥胶体和骨料表面发生反应，从而进一步改善粘度调节剂的溶解性、增加聚合物的稳定性。增强水泥浆体与再生骨料之间的粘结性，减少裂缝。
Recycled concrete viscosity modifier as well as preparation method and use method thereof
一种再生混凝土粘度调节剂、制备方法及其使用方法
LIU XIAOFAN (author) / HU LANG (author) / CHEN JIAN (author) / WU HANG (author) / FAN QIANG (author) / LIU HANXIN (author) / LI XINGLAI (author) / LIU SHICHENG (author) / ZENG LINGQIANG (author) / ZHU KELIN (author)
2023-11-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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