A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Powdery water reducing agent and preparation method thereof
The invention discloses a powdery water reducing agent and a preparation method thereof, and relates to the technical field of water reducing agents. The water reducing agent comprises the following components in parts by weight: 30-50 parts of modified polyoxyethylene ether, 20-30 parts of acrylic acid, 8-16 parts of diethyl maleate, 5-10 parts of mercaptoacetic acid, 1-3 parts of concentrated sulfuric acid, 1-2 parts of sodium sulfate, 0.3-2 parts of an alkaline regulator, 1-3 parts of modified lignin, 0.5-1.5 parts of an anti-sticking additive, 0.1-0.3 part of a foaming agent, 0.05-0.15 part and 70-90 parts of deionized water. The powdery water reducing agent disclosed by the invention has the advantages of low mixing amount, high water reducing rate, low gas content, low slump, difficulty in caking, good workability, quick dissolution and good stability, can effectively improve the strength and performance of concrete, and is simple in preparation process, convenient to operate, relatively low in cost, energy-saving, environment-friendly and suitable for industrial production.
本发明公开了一种粉态减水剂及其制备方法，涉及减水剂技术领域，所述减水剂按重量份包括以下组分：改性聚氧乙烯醚30～50份、丙烯酸20～30份、马来酸二乙酯8～16份、巯基乙酸5～10份、浓硫酸1～3份、硫酸钠1～2份、碱性调节剂0.3～2份、改性木质素1～3份、防粘助剂0.5～1.5份、发泡剂0.1～0.3份、消泡剂0.05～0.15份和去离子水70～90份。本发明粉状减水剂具有低掺量、高减水率、低含气量、低坍落度、不易结块、和易性好、可快速溶解且稳定性好的优点，能够有效提高混凝土的强度及性能，且本发明制备工艺简单，操作方便，成本较低，节能环保，适合工业化生产。
Powdery water reducing agent and preparation method thereof
The invention discloses a powdery water reducing agent and a preparation method thereof, and relates to the technical field of water reducing agents. The water reducing agent comprises the following components in parts by weight: 30-50 parts of modified polyoxyethylene ether, 20-30 parts of acrylic acid, 8-16 parts of diethyl maleate, 5-10 parts of mercaptoacetic acid, 1-3 parts of concentrated sulfuric acid, 1-2 parts of sodium sulfate, 0.3-2 parts of an alkaline regulator, 1-3 parts of modified lignin, 0.5-1.5 parts of an anti-sticking additive, 0.1-0.3 part of a foaming agent, 0.05-0.15 part and 70-90 parts of deionized water. The powdery water reducing agent disclosed by the invention has the advantages of low mixing amount, high water reducing rate, low gas content, low slump, difficulty in caking, good workability, quick dissolution and good stability, can effectively improve the strength and performance of concrete, and is simple in preparation process, convenient to operate, relatively low in cost, energy-saving, environment-friendly and suitable for industrial production.
本发明公开了一种粉态减水剂及其制备方法，涉及减水剂技术领域，所述减水剂按重量份包括以下组分：改性聚氧乙烯醚30～50份、丙烯酸20～30份、马来酸二乙酯8～16份、巯基乙酸5～10份、浓硫酸1～3份、硫酸钠1～2份、碱性调节剂0.3～2份、改性木质素1～3份、防粘助剂0.5～1.5份、发泡剂0.1～0.3份、消泡剂0.05～0.15份和去离子水70～90份。本发明粉状减水剂具有低掺量、高减水率、低含气量、低坍落度、不易结块、和易性好、可快速溶解且稳定性好的优点，能够有效提高混凝土的强度及性能，且本发明制备工艺简单，操作方便，成本较低，节能环保，适合工业化生产。
Powdery water reducing agent and preparation method thereof
一种粉态减水剂及其制备方法
LIU SHAOLIN (author) / LIU JUNJIE (author) / TIAN SHUAI (author) / LIAO WENWEN (author) / LING ZHI (author) / DENG KAI (author)
2020-11-03
Patent
Electronic Resource
Chinese
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