A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Super-long slump-retaining polycarboxylate superplasticizer and preparation method thereof
The embodiment of the invention discloses an ultra-long slump-retaining polycarboxylic acid water reducing agent and a preparation method thereof. The polycarboxylic acid water reducing agent comprises 8-30% of water reducing mother liquid, 8-30% of slump-retaining mother liquid, 1-5% of internal curing adjusting liquid and the balance of water. The polycarboxylate superplasticizer provided by the invention takes the autonomously synthesized water reducing mother solution, the slump retaining mother solution and the internal curing adjusting solution as raw materials, the water reducing rate of the water reducing mother solution can reach 45-46%, and the adaptability is strong; the slump retaining mother liquor has long-time slump retaining capacity (3-5 hours); and the internal curing adjusting liquid can improve the workability of the concrete and has a film-forming property. The water reducing agent provided by the invention has the properties of high water reducing rate, long-time slump retaining, internal curing, precipitation resistance, easiness in dispersion, glossy appearance and the like, and is particularly suitable for occasions with high powder content of machine-made sand, high flocculant content and higher requirements on the appearance of concrete.
本发明实施例公开了一种超长保坍聚羧酸减水剂及其制备方法，所述聚羧酸减水剂包括减水母液8～30％、保坍母液8～30％、内养护调节液1～5％，余量为水。本发明提供的聚羧酸减水剂以自主合成的减水母液、保坍母液和内养护调节液为原料，其中，减水母液的减水率可达(45～46％)，适应性强；保坍母液具有长时保坍能力(3～5小时)；内养护调节液能改善混凝土和易性，并且具有成膜性能。所提供的减水剂具有高减水率、长时保坍、内养护、抗沉淀、易分散、外观光泽等性能，特别适用于机制砂含粉量高、含絮凝剂、对砼的外观有较高要求的场合。
Super-long slump-retaining polycarboxylate superplasticizer and preparation method thereof
The embodiment of the invention discloses an ultra-long slump-retaining polycarboxylic acid water reducing agent and a preparation method thereof. The polycarboxylic acid water reducing agent comprises 8-30% of water reducing mother liquid, 8-30% of slump-retaining mother liquid, 1-5% of internal curing adjusting liquid and the balance of water. The polycarboxylate superplasticizer provided by the invention takes the autonomously synthesized water reducing mother solution, the slump retaining mother solution and the internal curing adjusting solution as raw materials, the water reducing rate of the water reducing mother solution can reach 45-46%, and the adaptability is strong; the slump retaining mother liquor has long-time slump retaining capacity (3-5 hours); and the internal curing adjusting liquid can improve the workability of the concrete and has a film-forming property. The water reducing agent provided by the invention has the properties of high water reducing rate, long-time slump retaining, internal curing, precipitation resistance, easiness in dispersion, glossy appearance and the like, and is particularly suitable for occasions with high powder content of machine-made sand, high flocculant content and higher requirements on the appearance of concrete.
本发明实施例公开了一种超长保坍聚羧酸减水剂及其制备方法，所述聚羧酸减水剂包括减水母液8～30％、保坍母液8～30％、内养护调节液1～5％，余量为水。本发明提供的聚羧酸减水剂以自主合成的减水母液、保坍母液和内养护调节液为原料，其中，减水母液的减水率可达(45～46％)，适应性强；保坍母液具有长时保坍能力(3～5小时)；内养护调节液能改善混凝土和易性，并且具有成膜性能。所提供的减水剂具有高减水率、长时保坍、内养护、抗沉淀、易分散、外观光泽等性能，特别适用于机制砂含粉量高、含絮凝剂、对砼的外观有较高要求的场合。
Super-long slump-retaining polycarboxylate superplasticizer and preparation method thereof
一种超长保坍聚羧酸减水剂及其制备方法
HAN YAN (author) / WU QIANG (author) / JIN XIANGQIAN (author) / ZHANG HAOLIANG (author) / ZENG QING (author) / CAO LIXIN (author) / YAO YUANDA (author) / JIA DAN (author) / ZHANG CHI (author) / LI DECHANG (author)
2024-07-09
Patent
Electronic Resource
Chinese
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