Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Radiation-proof concrete admixture and preparation method thereof
The invention relates to an anti-radiation concrete admixture and a preparation method thereof. The anti-radiation concrete admixture is prepared from the following raw materials in parts by weight: 20.0 to 40.0 parts of water-reducing mother liquor, 0.06 to 0.15 part of air entraining agent, 0.02 to 0.05 part of defoaming agent, 0.5 to 0.8 part of thickening time control agent, 0.2 to 0.4 part of water-retaining thickening agent, 0.5 to 1.0 part of anti-radiation agent and water. According to the radiation-proof concrete admixture disclosed by the invention, a water-retaining thickening agent, namely the polyurethane associated thickening agent, the modified betaine and the seaweed gel are introduced into the radiation-proof concrete admixture, so that the bleeding and segregation resistance of concrete are improved, and the strength of the concrete is improved. The anti-radiation capability of the concrete is improved by adding the nano TiO2 sol and the nanoscale barium sulfate. In the synthesis of the water-reducing mother liquor, ammonium acrylate is added, so that the dispersing performance of the solution is improved, the flowing property of the concrete is enhanced, and the titanium dioxide sol can be more uniformly dispersed in the whole admixture and the concrete.
本发明涉及一种防辐射混凝土外加剂及其制备方法，以重量份数计防辐射混凝土外加剂的制备原料包括减水型母液20.0～40.0份、引气剂0.06～0.15份、消泡剂0.02～0.05份、调凝剂0.5～0.8份、保水增稠剂0.2～0.4份、防辐射剂0.5～1.0份以及水。本发明在防辐射混凝土外加剂中引入保水增稠剂聚氨酯缔合型增稠剂、改性甜菜碱、海藻胶，改善了混凝土泌水以及抗离析性能，提升了混凝土强度。本发明通过加入纳米TiO2溶胶和纳米级硫酸钡提升混凝土的防辐射能力。在减水型母液合成中，加入丙烯酸铵，增大溶液的分散性能，除增强混凝土流动性能外，还能使二氧化钛溶胶更均匀的分散在整个外加剂和混凝土中。
Radiation-proof concrete admixture and preparation method thereof
The invention relates to an anti-radiation concrete admixture and a preparation method thereof. The anti-radiation concrete admixture is prepared from the following raw materials in parts by weight: 20.0 to 40.0 parts of water-reducing mother liquor, 0.06 to 0.15 part of air entraining agent, 0.02 to 0.05 part of defoaming agent, 0.5 to 0.8 part of thickening time control agent, 0.2 to 0.4 part of water-retaining thickening agent, 0.5 to 1.0 part of anti-radiation agent and water. According to the radiation-proof concrete admixture disclosed by the invention, a water-retaining thickening agent, namely the polyurethane associated thickening agent, the modified betaine and the seaweed gel are introduced into the radiation-proof concrete admixture, so that the bleeding and segregation resistance of concrete are improved, and the strength of the concrete is improved. The anti-radiation capability of the concrete is improved by adding the nano TiO2 sol and the nanoscale barium sulfate. In the synthesis of the water-reducing mother liquor, ammonium acrylate is added, so that the dispersing performance of the solution is improved, the flowing property of the concrete is enhanced, and the titanium dioxide sol can be more uniformly dispersed in the whole admixture and the concrete.
本发明涉及一种防辐射混凝土外加剂及其制备方法，以重量份数计防辐射混凝土外加剂的制备原料包括减水型母液20.0～40.0份、引气剂0.06～0.15份、消泡剂0.02～0.05份、调凝剂0.5～0.8份、保水增稠剂0.2～0.4份、防辐射剂0.5～1.0份以及水。本发明在防辐射混凝土外加剂中引入保水增稠剂聚氨酯缔合型增稠剂、改性甜菜碱、海藻胶，改善了混凝土泌水以及抗离析性能，提升了混凝土强度。本发明通过加入纳米TiO2溶胶和纳米级硫酸钡提升混凝土的防辐射能力。在减水型母液合成中，加入丙烯酸铵，增大溶液的分散性能，除增强混凝土流动性能外，还能使二氧化钛溶胶更均匀的分散在整个外加剂和混凝土中。
Radiation-proof concrete admixture and preparation method thereof
一种防辐射混凝土外加剂及其制备方法
YANG QIAO (Autor:in) / YAN QIONG (Autor:in) / CHEN YONGZHONG (Autor:in) / YAO LIANGKE (Autor:in)
03.10.2023
Patent
Elektronische Ressource
Chinesisch
Radiation-proof concrete admixture, concrete, condensate and preparation method thereof
| Europäisches Patentamt | 2024
Concrete admixture, preparation method thereof and concrete added with concrete admixture
| Europäisches Patentamt | 2020