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A platform for research: civil engineering, architecture and urbanism
Polycarboxylate superplasticizer suitable for commercial concrete and preparation method thereof
The invention belongs to the technical field of concrete admixtures, and particularly relates to a polycarboxylate superplasticizer suitable for commercial concrete and a preparation method of the polycarboxylate superplasticizer. The water reducing agent is prepared from the following raw materials in parts by weight: 320 to 350 parts of methyl allyl polyoxyethylene ether, 20 to 23 parts of 3-methyl-4-methylthio phenol, 40 to 45 parts of acrylic acid, 16 to 18 parts of methyl acrylate, 2 to 3 parts of ammonium persulfate, 1.5 to 2 parts of hydrogen peroxide and 3 to 5 parts of 3-isooctyl thiohydracrylate. The prepared polycarboxylic acid water reducer is low in yield, good in slump retaining performance, suitable for commercial concrete, high in water reducing rate and good in stability, meanwhile, the microbial contamination rate of the concrete can be greatly reduced, and the stability and compressive strength of the concrete are improved.
本发明属于混凝土外加剂技术领域，具体涉及一种适用于商品混凝土的聚羧酸减水剂及其制备方法。该减水剂通过以下重量份的原料组成：甲基烯丙基聚氧乙烯醚320‑350份、3‑甲基‑4‑甲硫基苯酚20‑23份、丙烯酸40‑45份、丙烯酸甲酯16‑18份、过硫酸铵2‑3份、过氧化氢1.5‑2份、3‑巯基丙酸异辛酯3‑5份。本发明制备的聚羧酸减水剂，产量低，保坍性能好，能够适用于商品混凝土，减水率高，且稳定性好，同时，能够大大减少混凝土微生物污染率，提高混凝土的稳定性及抗压强度。
Polycarboxylate superplasticizer suitable for commercial concrete and preparation method thereof
The invention belongs to the technical field of concrete admixtures, and particularly relates to a polycarboxylate superplasticizer suitable for commercial concrete and a preparation method of the polycarboxylate superplasticizer. The water reducing agent is prepared from the following raw materials in parts by weight: 320 to 350 parts of methyl allyl polyoxyethylene ether, 20 to 23 parts of 3-methyl-4-methylthio phenol, 40 to 45 parts of acrylic acid, 16 to 18 parts of methyl acrylate, 2 to 3 parts of ammonium persulfate, 1.5 to 2 parts of hydrogen peroxide and 3 to 5 parts of 3-isooctyl thiohydracrylate. The prepared polycarboxylic acid water reducer is low in yield, good in slump retaining performance, suitable for commercial concrete, high in water reducing rate and good in stability, meanwhile, the microbial contamination rate of the concrete can be greatly reduced, and the stability and compressive strength of the concrete are improved.
本发明属于混凝土外加剂技术领域，具体涉及一种适用于商品混凝土的聚羧酸减水剂及其制备方法。该减水剂通过以下重量份的原料组成：甲基烯丙基聚氧乙烯醚320‑350份、3‑甲基‑4‑甲硫基苯酚20‑23份、丙烯酸40‑45份、丙烯酸甲酯16‑18份、过硫酸铵2‑3份、过氧化氢1.5‑2份、3‑巯基丙酸异辛酯3‑5份。本发明制备的聚羧酸减水剂，产量低，保坍性能好，能够适用于商品混凝土，减水率高，且稳定性好，同时，能够大大减少混凝土微生物污染率，提高混凝土的稳定性及抗压强度。
Polycarboxylate superplasticizer suitable for commercial concrete and preparation method thereof
一种适用于商品混凝土的聚羧酸减水剂及其制备方法
HUANG LIJUN (author) / TONG LI (author) / WANG RUOCHEN (author) / HUANG QING (author) / ZHOU GUANGJUN (author)
2021-06-08
Patent
Electronic Resource
Chinese
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