Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Additive for ceramsite concrete as well as preparation method and application thereof
The invention discloses an admixture for ceramsite concrete as well as a preparation method and application thereof, and the admixture for ceramsite concrete is characterized by comprising the following components in parts by mass: 273.4 to 379 parts of an emulsion type polycarboxylic acid water reducing agent, 3 to 10 parts of a viscosity modifier, 1.0 to 5.0 parts of an air entraining agent, 15 to 20 parts of a silane coupling agent and 655 to 700 parts of water, wherein the emulsion type polycarboxylate superplasticizer is obtained by copolymerizing unsaturated polyether monomers, first unsaturated carboxylic acid monomers, second unsaturated carboxylic acid monomers and acrylate monomers in a mass ratio of (80-95): (3-5): (7-10): (10-16) under the action of an auxiliary agent system, and the auxiliary agent system comprises an initiator, a chain transfer agent, an emulsifier and water in a mass ratio of (0.9-2.0): (0.5-3.0): (12-18): (170-230). According to the admixture for the ceramsite concrete, through the synergistic effect of the emulsion type polycarboxylate superplasticizer, the viscosity modifier, the air entraining agent and the silane coupling agent, the ceramsite concrete has good workability, compressive strength and slump loss resistance.
本发明公开了一种陶粒混凝土用外加剂及其制备方法和应用，其中，一种陶粒混凝土用外加剂，其特征在于，按质量份计，包括如下组分：273.4‑379份乳液型聚羧酸减水剂、3‑10份粘度改性剂、1.0‑5.0份引气剂、15‑20份硅烷偶联剂和655‑700份水；其中，乳液型聚羧酸减水剂由不饱和聚醚单体、第一不饱和羧酸类单体、第二不饱和羧酸类单体和丙烯酸酯类单体以80‑95：3‑5：7‑10：10‑16的质量比在助剂体系的作用下共聚得到，助剂体系包括质量比为0.9‑2.0：0.5‑3.0：12‑18：170‑230的引发剂、链转移剂、乳化剂和水。本发明提供的陶粒混凝土用外加剂，通过乳液型聚羧酸减水剂、粘度改性剂、引气剂和硅烷偶联剂协同作用，使陶粒混凝土具有良好的和易性、抗压强度和保坍性能。
Additive for ceramsite concrete as well as preparation method and application thereof
The invention discloses an admixture for ceramsite concrete as well as a preparation method and application thereof, and the admixture for ceramsite concrete is characterized by comprising the following components in parts by mass: 273.4 to 379 parts of an emulsion type polycarboxylic acid water reducing agent, 3 to 10 parts of a viscosity modifier, 1.0 to 5.0 parts of an air entraining agent, 15 to 20 parts of a silane coupling agent and 655 to 700 parts of water, wherein the emulsion type polycarboxylate superplasticizer is obtained by copolymerizing unsaturated polyether monomers, first unsaturated carboxylic acid monomers, second unsaturated carboxylic acid monomers and acrylate monomers in a mass ratio of (80-95): (3-5): (7-10): (10-16) under the action of an auxiliary agent system, and the auxiliary agent system comprises an initiator, a chain transfer agent, an emulsifier and water in a mass ratio of (0.9-2.0): (0.5-3.0): (12-18): (170-230). According to the admixture for the ceramsite concrete, through the synergistic effect of the emulsion type polycarboxylate superplasticizer, the viscosity modifier, the air entraining agent and the silane coupling agent, the ceramsite concrete has good workability, compressive strength and slump loss resistance.
本发明公开了一种陶粒混凝土用外加剂及其制备方法和应用，其中，一种陶粒混凝土用外加剂，其特征在于，按质量份计，包括如下组分：273.4‑379份乳液型聚羧酸减水剂、3‑10份粘度改性剂、1.0‑5.0份引气剂、15‑20份硅烷偶联剂和655‑700份水；其中，乳液型聚羧酸减水剂由不饱和聚醚单体、第一不饱和羧酸类单体、第二不饱和羧酸类单体和丙烯酸酯类单体以80‑95：3‑5：7‑10：10‑16的质量比在助剂体系的作用下共聚得到，助剂体系包括质量比为0.9‑2.0：0.5‑3.0：12‑18：170‑230的引发剂、链转移剂、乳化剂和水。本发明提供的陶粒混凝土用外加剂，通过乳液型聚羧酸减水剂、粘度改性剂、引气剂和硅烷偶联剂协同作用，使陶粒混凝土具有良好的和易性、抗压强度和保坍性能。
Additive for ceramsite concrete as well as preparation method and application thereof
陶粒混凝土用外加剂及其制备方法和应用
HUANG HAICHAO (Autor:in) / HUANG LIJING (Autor:in) / CHEN JIANJUN (Autor:in) / ZENG YANGWEI (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
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