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Silane modified polycarboxylate superplasticizer, preparation method thereof, concrete admixture using superplasticizer, and preparation method of concrete admixture
The invention provides a silane modified polycarboxylate superplasticizer, a preparation method thereof, a concrete admixture using the superplasticizer, and a preparation method of the concrete admixture. The silane modified polycarboxylate superplasticizer comprises, by weight, 9.9-12.2% of polyoxyethylene ether, 31.5-33.8% of acrylic acid, 1.2-2.2% of gamma-methacryloxypropyltrimethoxysilane, 0.3-0.45% of ammonium persulfate, 0.15-0.25% of 3-mercaptoacetic acid, and the balance of deionized water. The concrete admixture comprises, by weight, 26-40% of the silane modified polycarboxylate superplasticizer, 0.02-0.08% of polyvinyl alcohol, 0.3-0.6% of sodium dodecyl benzene sulfonate, 4-8% of sodium gluconate, and the balance of water. The admixture has high water reducing property and slump retaining property, and is particularly beneficial to recycled concrete construction and quality control; and production materials are simple and easy to obtain, and the process is simple and feasible.
本申请提供一种硅烷改性聚羧酸减水剂、使用该减水剂的混凝土外加剂及其制备方法；其中，硅烷改性聚羧酸减水剂以wt.%计包含以下原料组分：聚氧乙烯醚9.9~12.2%，丙烯酸31.5~33.8%，γ‑甲基丙烯酰氧基丙基三甲氧基硅烷1.2‑2.2%，过硫酸铵0.3~0.45%，3‑巯基乙酸0.15~0.25%，余量为去离子水；混凝土外加剂以wt.%计包含以下的组分：上述硅烷改性聚羧酸减水剂26~40%，聚乙烯醇0.02~0.08%，十二烷基苯磺酸钠0.3~0.6%，葡萄糖酸钠4~8%，余量为水。该外加剂具有高减水性和保坍性，尤其有助于再生混凝土施工及质量控制；生产材料简单易得，工艺简单可行。
Silane modified polycarboxylate superplasticizer, preparation method thereof, concrete admixture using superplasticizer, and preparation method of concrete admixture
The invention provides a silane modified polycarboxylate superplasticizer, a preparation method thereof, a concrete admixture using the superplasticizer, and a preparation method of the concrete admixture. The silane modified polycarboxylate superplasticizer comprises, by weight, 9.9-12.2% of polyoxyethylene ether, 31.5-33.8% of acrylic acid, 1.2-2.2% of gamma-methacryloxypropyltrimethoxysilane, 0.3-0.45% of ammonium persulfate, 0.15-0.25% of 3-mercaptoacetic acid, and the balance of deionized water. The concrete admixture comprises, by weight, 26-40% of the silane modified polycarboxylate superplasticizer, 0.02-0.08% of polyvinyl alcohol, 0.3-0.6% of sodium dodecyl benzene sulfonate, 4-8% of sodium gluconate, and the balance of water. The admixture has high water reducing property and slump retaining property, and is particularly beneficial to recycled concrete construction and quality control; and production materials are simple and easy to obtain, and the process is simple and feasible.
本申请提供一种硅烷改性聚羧酸减水剂、使用该减水剂的混凝土外加剂及其制备方法；其中，硅烷改性聚羧酸减水剂以wt.%计包含以下原料组分：聚氧乙烯醚9.9~12.2%，丙烯酸31.5~33.8%，γ‑甲基丙烯酰氧基丙基三甲氧基硅烷1.2‑2.2%，过硫酸铵0.3~0.45%，3‑巯基乙酸0.15~0.25%，余量为去离子水；混凝土外加剂以wt.%计包含以下的组分：上述硅烷改性聚羧酸减水剂26~40%，聚乙烯醇0.02~0.08%，十二烷基苯磺酸钠0.3~0.6%，葡萄糖酸钠4~8%，余量为水。该外加剂具有高减水性和保坍性，尤其有助于再生混凝土施工及质量控制；生产材料简单易得，工艺简单可行。
Silane modified polycarboxylate superplasticizer, preparation method thereof, concrete admixture using superplasticizer, and preparation method of concrete admixture
硅烷改性聚羧酸减水剂、使用该减水剂的混凝土外加剂及其制备方法
LYU SIZHONG (author) / ZHANG SHUXIONG (author) / SU JIANMING (author) / LIU ZHAOLEI (author) / WANG KAI (author) / LU KAIJI (author) / ZHANG QINGTAO (author)
2020-10-02
Patent
Electronic Resource
Chinese
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