Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Air entraining agent for concrete
The invention discloses an air entraining agent for concrete. The air entraining agent is mainly prepared from the following raw materials: a modified rosin thermopolymer, rosin nitrile, alkyl isomeric alcohol polyoxyethylene ether, an alkylphenol ethylene oxide condensate, lignin transverse acid salt, sodium alginate, Arabic gum and a dispersing agent. The preparation method of the modified rosin thermopolymer comprises the following step: reacting a rosin thermopolymer, dimethylaminoethyl ether and a stabilizer for 1.5-4 hours under the conditions that the rotating speed is 500-600r/min and the temperature is 120-170 DEG C, so as to obtain the modified rosin thermopolymer. According to the air entraining agent for the concrete, all the raw material components play a synergistic and complementary role, the air entraining agent is not influenced by environmental conditions and concrete raw materials, the concrete can be rapidly promoted to form a structure with stable bubbles and a uniform pore structure, the durability of the concrete is improved, and the compressive strength of the concrete is not reduced.
本发明公开了一种用于混凝土的引气剂，主要有以下原料制成：改性松香热聚物、松香腈、烷基异构醇聚氧乙烯醚、烷基酚环氧乙烷缩合物、木质素横酸盐、海藻酸钠、阿拉伯胶、分散剂；改性松香热聚物的制备方法如下：在转速为500‑600r/min和120‑170℃条件下，松香热聚物、二甲氨基乙基醚与稳定剂反应1.5‑4h后获得变性松香热聚物。本发明用于混凝土的引气剂，各原料组份发挥协同互补作用，不受环境条件和混凝土原料的影响能快速的促进混凝土形成气泡稳定、气孔结构均匀的结构，提高混凝土耐久性且不降低混凝土抗压强度。
Air entraining agent for concrete
The invention discloses an air entraining agent for concrete. The air entraining agent is mainly prepared from the following raw materials: a modified rosin thermopolymer, rosin nitrile, alkyl isomeric alcohol polyoxyethylene ether, an alkylphenol ethylene oxide condensate, lignin transverse acid salt, sodium alginate, Arabic gum and a dispersing agent. The preparation method of the modified rosin thermopolymer comprises the following step: reacting a rosin thermopolymer, dimethylaminoethyl ether and a stabilizer for 1.5-4 hours under the conditions that the rotating speed is 500-600r/min and the temperature is 120-170 DEG C, so as to obtain the modified rosin thermopolymer. According to the air entraining agent for the concrete, all the raw material components play a synergistic and complementary role, the air entraining agent is not influenced by environmental conditions and concrete raw materials, the concrete can be rapidly promoted to form a structure with stable bubbles and a uniform pore structure, the durability of the concrete is improved, and the compressive strength of the concrete is not reduced.
本发明公开了一种用于混凝土的引气剂，主要有以下原料制成：改性松香热聚物、松香腈、烷基异构醇聚氧乙烯醚、烷基酚环氧乙烷缩合物、木质素横酸盐、海藻酸钠、阿拉伯胶、分散剂；改性松香热聚物的制备方法如下：在转速为500‑600r/min和120‑170℃条件下，松香热聚物、二甲氨基乙基醚与稳定剂反应1.5‑4h后获得变性松香热聚物。本发明用于混凝土的引气剂，各原料组份发挥协同互补作用，不受环境条件和混凝土原料的影响能快速的促进混凝土形成气泡稳定、气孔结构均匀的结构，提高混凝土耐久性且不降低混凝土抗压强度。
Air entraining agent for concrete
用于混凝土的引气剂
ZHANG YAOAN (Autor:in) / ZHANG YAOYOU (Autor:in) / HUANG DANPING (Autor:in) / WU GUANGWEN (Autor:in) / HUANG CHENGQIU (Autor:in) / LI LONGJIN (Autor:in) / LAI YIHU (Autor:in)
15.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Method for testing air entraining performance of air entraining agent for concrete
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2024
Concrete air entraining agent with good foam stability
| Europäisches Patentamt | 2020