Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Waterproof and anti-freezing recycled concrete and preparation method thereof
The invention provides waterproof and anti-freezing recycled concrete and a preparation method thereof. The recycled concrete comprises a base material, an anti-freezing component and an early strength auxiliary agent, the mass percentage of the anti-freezing component is less than or equal to 1.5%, and the mass percentage of the early strength auxiliary agent is less than or equal to 4.3%; the base material comprises a cementing material, aggregate, a water reducing agent and mixing water, the anti-freezing component comprises an anti-freezing agent, sepiolite powder and sponge iron, and a prefabricated auxiliary agent comprises calcium sulfate, aliphatic carboxylic acid triethanolamine salt and polyacrylamide. In the application, through reasonable selection of raw materials and prefabrication activation, coordination and compatibility of components, the reaction and combination effect is excellent, the concrete is waterproof and frost-resistant, the gel and aggregate interface bonding is stable and high-strength, the anti-cracking effect is obviously improved, the comprehensive mechanical property is good, and high efficiency and practicability are achieved.
本发明提出了一种防水防冻再生混凝土及其制备方法，该再生混凝土包括基料、防冻组分和早强辅助剂，防冻组分质量百分含量占比≤1.5％，早强辅助剂质量百分含量占比≤4.3％；基料包括胶凝材料、骨料、减水剂、拌合水，防冻组分包括防冻剂、海泡石粉、海绵铁，预制辅助剂包括硫酸钙、脂肪族羧酸三乙醇胺盐、聚丙烯酰胺，本申请通过合理的原料选配和预制活化，组分间协作配伍，反应结合效果优异，制得混凝土防水抗冻，凝胶体与骨料界面结合稳定高强，抗裂效果明显改善，综合力学性能好，高效实用。
Waterproof and anti-freezing recycled concrete and preparation method thereof
The invention provides waterproof and anti-freezing recycled concrete and a preparation method thereof. The recycled concrete comprises a base material, an anti-freezing component and an early strength auxiliary agent, the mass percentage of the anti-freezing component is less than or equal to 1.5%, and the mass percentage of the early strength auxiliary agent is less than or equal to 4.3%; the base material comprises a cementing material, aggregate, a water reducing agent and mixing water, the anti-freezing component comprises an anti-freezing agent, sepiolite powder and sponge iron, and a prefabricated auxiliary agent comprises calcium sulfate, aliphatic carboxylic acid triethanolamine salt and polyacrylamide. In the application, through reasonable selection of raw materials and prefabrication activation, coordination and compatibility of components, the reaction and combination effect is excellent, the concrete is waterproof and frost-resistant, the gel and aggregate interface bonding is stable and high-strength, the anti-cracking effect is obviously improved, the comprehensive mechanical property is good, and high efficiency and practicability are achieved.
本发明提出了一种防水防冻再生混凝土及其制备方法，该再生混凝土包括基料、防冻组分和早强辅助剂，防冻组分质量百分含量占比≤1.5％，早强辅助剂质量百分含量占比≤4.3％；基料包括胶凝材料、骨料、减水剂、拌合水，防冻组分包括防冻剂、海泡石粉、海绵铁，预制辅助剂包括硫酸钙、脂肪族羧酸三乙醇胺盐、聚丙烯酰胺，本申请通过合理的原料选配和预制活化，组分间协作配伍，反应结合效果优异，制得混凝土防水抗冻，凝胶体与骨料界面结合稳定高强，抗裂效果明显改善，综合力学性能好，高效实用。
Waterproof and anti-freezing recycled concrete and preparation method thereof
一种防水防冻再生混凝土及其制备方法
MEI DONGLIN (Autor:in) / MEI JIE (Autor:in) / WU YELEI (Autor:in) / HANG JIAHUI (Autor:in) / JIAO MIAO (Autor:in)
18.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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