Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete added with anti-mud viscosity-reducing water reducer
The invention discloses concrete added with a mud-resistant viscosity-reducing water reducing agent. The concrete is prepared from the following raw material components: 50 to 60 parts of Portland cement, 10 to 15 parts of gypsum, 5 to 10 parts of steel slag, 50 to 70 parts of machine-made sand, 60 to 70 parts of stone, 5 to 7 parts of mud-resistant viscosity-reducing water reducing agent, 1 to 2 parts of triethanolamine, 2 to 3 parts of sodium dodecyl sulfate and 25 to 30 parts of water. A 1-fluoro-1-(diphenylmethylsilyl) ethylene functional group is introduced into the water reducer, a silane functional group has a very good adsorption effect, cement particles are restrained under the electrostatic adsorption effect of hydroxyl, the cement particles are more uniformly dispersed, a fluorocarbon bond has a good hydrophobic property, the hydrophobic property is enhanced, so that the HLB value is lower, and the water reducing effect is better. When the HLB value is reduced, the capability of associating with water can be reduced, more free water can be released, and the effect of reducing the viscosity is achieved; fluorine in the group has electronegativity, plays a role in filling barrier and electrostatic interaction on a molecular chain of the water reducing agent, and forms a uniform net-shaped structure as a fulcrum to achieve a thixotropic equilibrium state.
一种添加有抗泥降粘型减水剂的混凝土，其原料包括以下组分：硅酸盐水泥50‑60份，石膏10‑15份，钢渣5‑10份，机制砂50‑70份，石子60‑70份，所述抗泥降粘型减水剂5‑7份，三乙醇胺1‑2份，十二烷基磺酸钠2‑3份，水25‑30份。减水剂中引入1‑氟‑1‑(二苯基甲基硅)乙烯功能性基团，其中硅烷官能团具有很好的吸附作用，在羟基静电吸附作用下牵制水泥颗粒，是水泥颗粒更加均匀分散，碳氟键具有良好的疏水性能，疏水性能增强会使得HLB值更低，HLB值降低会降低与水缔合的能力，能释放更多的自由水，起到降粘的作用；基团中的氟的具有负电性，在减水剂分子链上起到填充阻隔和静电相互作用，作为支点形成均匀的网状结构，达到触变平衡状态。
Concrete added with anti-mud viscosity-reducing water reducer
The invention discloses concrete added with a mud-resistant viscosity-reducing water reducing agent. The concrete is prepared from the following raw material components: 50 to 60 parts of Portland cement, 10 to 15 parts of gypsum, 5 to 10 parts of steel slag, 50 to 70 parts of machine-made sand, 60 to 70 parts of stone, 5 to 7 parts of mud-resistant viscosity-reducing water reducing agent, 1 to 2 parts of triethanolamine, 2 to 3 parts of sodium dodecyl sulfate and 25 to 30 parts of water. A 1-fluoro-1-(diphenylmethylsilyl) ethylene functional group is introduced into the water reducer, a silane functional group has a very good adsorption effect, cement particles are restrained under the electrostatic adsorption effect of hydroxyl, the cement particles are more uniformly dispersed, a fluorocarbon bond has a good hydrophobic property, the hydrophobic property is enhanced, so that the HLB value is lower, and the water reducing effect is better. When the HLB value is reduced, the capability of associating with water can be reduced, more free water can be released, and the effect of reducing the viscosity is achieved; fluorine in the group has electronegativity, plays a role in filling barrier and electrostatic interaction on a molecular chain of the water reducing agent, and forms a uniform net-shaped structure as a fulcrum to achieve a thixotropic equilibrium state.
一种添加有抗泥降粘型减水剂的混凝土，其原料包括以下组分：硅酸盐水泥50‑60份，石膏10‑15份，钢渣5‑10份，机制砂50‑70份，石子60‑70份，所述抗泥降粘型减水剂5‑7份，三乙醇胺1‑2份，十二烷基磺酸钠2‑3份，水25‑30份。减水剂中引入1‑氟‑1‑(二苯基甲基硅)乙烯功能性基团，其中硅烷官能团具有很好的吸附作用，在羟基静电吸附作用下牵制水泥颗粒，是水泥颗粒更加均匀分散，碳氟键具有良好的疏水性能，疏水性能增强会使得HLB值更低，HLB值降低会降低与水缔合的能力，能释放更多的自由水，起到降粘的作用；基团中的氟的具有负电性，在减水剂分子链上起到填充阻隔和静电相互作用，作为支点形成均匀的网状结构，达到触变平衡状态。
Concrete added with anti-mud viscosity-reducing water reducer
一种添加有抗泥降粘型减水剂的混凝土
SONG QIUSHENG (Autor:in)
24.06.2022
Patent
Elektronische Ressource
Chinesisch
Viscosity reducer for concrete and preparation method ofviscosity reducer
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2022