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Viscosity reduction type concrete admixture and preparation method thereof
The invention discloses a viscosity reduction type concrete admixture and a preparation method thereof. The viscosity reduction type concrete admixture is prepared from polyethylene glycol, maleic anhydride, methyl methacrylate, acrylic acid, ammonium persulfate, a reductive chain transfer agent, sodium hydroxide, a lubricating agent, an air entraining agent, a water reducing agent and water, specifically, the admixture is prepared from the following components in parts by weight: 15-22 parts of polyethylene glycol, 12-20 parts of maleic anhydride, 10-18 parts of methyl methacrylate, 8-15 parts of acrylic acid, 6-12 parts of ammonium persulfate, 2-6 parts of a reductive chain transfer agent, 3-8 parts of sodium hydroxide, 2-6 parts of a lubricant, 2-6 parts of an air entraining agent, 8-14parts of a water reducing agent and 22-30 parts of water.On the basis of ensuring the function of reducing the viscosity of concrete, the admixture can also greatly improve the performance of the concrete; and a retarding component and a polycarboxylate superplasticizer also have a synergistic effect, so that the water reducing dispersion performance of the polycarboxylate superplasticizer on theadmixture is further excited, the viscosity of the concrete is reduced, the effect of the admixture in the aspect of reducing the viscosity of the concrete is comprehensively improved, and the admixture is high in practicability and easy to use and popularize.
本发明公开了一种降粘型混凝土外加剂及其制备方法，包括聚乙二醇、马来酸酐、甲基丙烯酸甲酯、丙烯酸、过硫酸铵、还原性链转移剂、氢氧化钠、润滑剂、引气剂、减水剂和水，各成分的组成重量份为：聚乙二醇15‑22份、马来酸酐12‑20份、甲基丙烯酸甲酯10‑18份、丙烯酸8‑15份、过硫酸铵6‑12份、还原性链转移剂2‑6份、氢氧化钠3‑8份、润滑剂2‑6份、引气剂2‑6份、减水剂8‑14份和水22‑30份，该外加剂在保证降低混凝土粘性的功能的基础上，还显著的改善了混凝土的性能，其缓凝组分与聚羧酸减水剂还协同作用，进一步激发了聚羧酸减水剂对掺合料的减水分散性能，降低了混凝土的粘度，综合提升了外加剂在降低混凝土粘性方面的功效，实用性强，易于使用和推广。
Viscosity reduction type concrete admixture and preparation method thereof
The invention discloses a viscosity reduction type concrete admixture and a preparation method thereof. The viscosity reduction type concrete admixture is prepared from polyethylene glycol, maleic anhydride, methyl methacrylate, acrylic acid, ammonium persulfate, a reductive chain transfer agent, sodium hydroxide, a lubricating agent, an air entraining agent, a water reducing agent and water, specifically, the admixture is prepared from the following components in parts by weight: 15-22 parts of polyethylene glycol, 12-20 parts of maleic anhydride, 10-18 parts of methyl methacrylate, 8-15 parts of acrylic acid, 6-12 parts of ammonium persulfate, 2-6 parts of a reductive chain transfer agent, 3-8 parts of sodium hydroxide, 2-6 parts of a lubricant, 2-6 parts of an air entraining agent, 8-14parts of a water reducing agent and 22-30 parts of water.On the basis of ensuring the function of reducing the viscosity of concrete, the admixture can also greatly improve the performance of the concrete; and a retarding component and a polycarboxylate superplasticizer also have a synergistic effect, so that the water reducing dispersion performance of the polycarboxylate superplasticizer on theadmixture is further excited, the viscosity of the concrete is reduced, the effect of the admixture in the aspect of reducing the viscosity of the concrete is comprehensively improved, and the admixture is high in practicability and easy to use and popularize.
本发明公开了一种降粘型混凝土外加剂及其制备方法，包括聚乙二醇、马来酸酐、甲基丙烯酸甲酯、丙烯酸、过硫酸铵、还原性链转移剂、氢氧化钠、润滑剂、引气剂、减水剂和水，各成分的组成重量份为：聚乙二醇15‑22份、马来酸酐12‑20份、甲基丙烯酸甲酯10‑18份、丙烯酸8‑15份、过硫酸铵6‑12份、还原性链转移剂2‑6份、氢氧化钠3‑8份、润滑剂2‑6份、引气剂2‑6份、减水剂8‑14份和水22‑30份，该外加剂在保证降低混凝土粘性的功能的基础上，还显著的改善了混凝土的性能，其缓凝组分与聚羧酸减水剂还协同作用，进一步激发了聚羧酸减水剂对掺合料的减水分散性能，降低了混凝土的粘度，综合提升了外加剂在降低混凝土粘性方面的功效，实用性强，易于使用和推广。
Viscosity reduction type concrete admixture and preparation method thereof
一种降粘型混凝土外加剂及其制备方法
LIU YUMIN (Autor:in) / WANG JIANFENG (Autor:in) / QIAO YONGLIANG (Autor:in)
12.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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