Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-cracking high-slump-retaining concrete polycarboxylate water reducer
The invention belongs to the technical field of water reducing agents, and particularly relates to an anti-cracking high-slump-retaining concrete polycarboxylate water reducer. The water reducer is prepared from the following components in parts by weight: 50-90 parts of an isopentenol polyethylene glycol monomethyl ether macromonomer, 20-30 parts of a methyl propanol polyoxyethylene ether macromonomer, 10-15 parts of styrene acrylate, 2-5 parts of N-(3-dimethylaminopropyl) methacrylamide, 20-25 parts of acrylic acid, 1-3 parts of allyl ester, 4-5 parts of allyl polyoxyethylene ether, 3-5 parts of maleic anhydride, 2-4 parts of dimethyl fumarate, 2-6 parts of unsaturated sulfonate 4-8 parts of sodium hypophosphite, 0.5-1.5 parts of a chain transfer agent, 5-15 parts of a neutralizer and 80-90 parts of water. The concrete polycarboxylate water reducer is high in adaptability to cement, small in mixing amount, capable of increasing fluidity, small in slump loss, remarkable in early strength effect and capable of improving the compactness of concrete, saving cement, improving the working performance of the concrete and improving the durability of the concrete.
本发明属于减水剂技术领域，具体为一种抗裂高保坍混凝土聚羧酸减水剂；包括如下重量份的组分：异戊烯醇聚乙二醇单甲醚大单体50‑90份、甲基丙醇聚氧乙烯醚大单体20‑30份、丙烯酸苯乙烯酯10‑15份、N‑（3‑二甲氨基丙基）甲基丙烯酰胺2‑5份、丙烯酸20‑25份、烯酸酯1‑3份、烯丙基聚氧乙烯醚4‑5份、马来酸酐3‑5份、富马酸二甲酯2‑4份、不饱和磺酸盐2‑6份、次磷酸钠4‑8份、链转移剂0.5‑1.5份、中和剂5‑15份、水80‑90份；本发明对水泥的适应性好，掺量小、增加流动度，且坍落度损失小、早强效果显著、能改善混凝土的密实程度、节约水泥、改善混凝土工作性能，提高混凝土的耐久性。
Anti-cracking high-slump-retaining concrete polycarboxylate water reducer
The invention belongs to the technical field of water reducing agents, and particularly relates to an anti-cracking high-slump-retaining concrete polycarboxylate water reducer. The water reducer is prepared from the following components in parts by weight: 50-90 parts of an isopentenol polyethylene glycol monomethyl ether macromonomer, 20-30 parts of a methyl propanol polyoxyethylene ether macromonomer, 10-15 parts of styrene acrylate, 2-5 parts of N-(3-dimethylaminopropyl) methacrylamide, 20-25 parts of acrylic acid, 1-3 parts of allyl ester, 4-5 parts of allyl polyoxyethylene ether, 3-5 parts of maleic anhydride, 2-4 parts of dimethyl fumarate, 2-6 parts of unsaturated sulfonate 4-8 parts of sodium hypophosphite, 0.5-1.5 parts of a chain transfer agent, 5-15 parts of a neutralizer and 80-90 parts of water. The concrete polycarboxylate water reducer is high in adaptability to cement, small in mixing amount, capable of increasing fluidity, small in slump loss, remarkable in early strength effect and capable of improving the compactness of concrete, saving cement, improving the working performance of the concrete and improving the durability of the concrete.
本发明属于减水剂技术领域，具体为一种抗裂高保坍混凝土聚羧酸减水剂；包括如下重量份的组分：异戊烯醇聚乙二醇单甲醚大单体50‑90份、甲基丙醇聚氧乙烯醚大单体20‑30份、丙烯酸苯乙烯酯10‑15份、N‑（3‑二甲氨基丙基）甲基丙烯酰胺2‑5份、丙烯酸20‑25份、烯酸酯1‑3份、烯丙基聚氧乙烯醚4‑5份、马来酸酐3‑5份、富马酸二甲酯2‑4份、不饱和磺酸盐2‑6份、次磷酸钠4‑8份、链转移剂0.5‑1.5份、中和剂5‑15份、水80‑90份；本发明对水泥的适应性好，掺量小、增加流动度，且坍落度损失小、早强效果显著、能改善混凝土的密实程度、节约水泥、改善混凝土工作性能，提高混凝土的耐久性。
Anti-cracking high-slump-retaining concrete polycarboxylate water reducer
一种抗裂高保坍混凝土聚羧酸减水剂
CHEN XUHONG (Autor:in) / LI YUN (Autor:in) / GAO ZHEWEN (Autor:in) / WANG JIALE (Autor:in)
26.01.2021
Patent
Elektronische Ressource
Chinesisch
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