Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete retarder and preparation method thereof
The invention provides a concrete retarder. The concrete retarder is prepared from the following raw materials in parts by weight: 1.6 to 3.8 parts of sodium lignin sulfonate, 1.0 to 2.6 parts of white sugar, 0.8 to 1.5 parts of corn starch, 0.2 to 0.5 part of malic acid, 0.02 to 0.06 part of carboxyethyl cellulose and 13.0 to 19.5 parts of water. Compared with the prior art, the concrete retarder has the beneficial effects that after the concrete retarder is brushed on a mold, the setting time of concrete on the contact surface of the concrete retarder and the mold can be effectively slowed down, meanwhile, the strength of concrete in a component is not influenced, and the concrete retarder is low in raw material cost, simple in preparation method, free of large mechanical equipment and high in cost performance.
本发明提供一种混凝土缓凝剂，由以下重量份数的原料组成：木质素磺酸钠1.6~3.8份，白糖1.0~2.6份，玉米淀粉0.8~1.5份，苹果酸0.2~0.5份，羧乙基纤维素0.02~0.06份，水13.0~19.5份。与现有技术相比，本发明的有益效果在于：本发明混凝土缓凝剂涂刷于模具上之后可有效减缓与模具接触面混凝土凝结时间，同时对构件内部混凝土强度无影响，此发明原料成本低廉，制备方法简单，无需大型机械设备，性价比高。
Concrete retarder and preparation method thereof
The invention provides a concrete retarder. The concrete retarder is prepared from the following raw materials in parts by weight: 1.6 to 3.8 parts of sodium lignin sulfonate, 1.0 to 2.6 parts of white sugar, 0.8 to 1.5 parts of corn starch, 0.2 to 0.5 part of malic acid, 0.02 to 0.06 part of carboxyethyl cellulose and 13.0 to 19.5 parts of water. Compared with the prior art, the concrete retarder has the beneficial effects that after the concrete retarder is brushed on a mold, the setting time of concrete on the contact surface of the concrete retarder and the mold can be effectively slowed down, meanwhile, the strength of concrete in a component is not influenced, and the concrete retarder is low in raw material cost, simple in preparation method, free of large mechanical equipment and high in cost performance.
本发明提供一种混凝土缓凝剂，由以下重量份数的原料组成：木质素磺酸钠1.6~3.8份，白糖1.0~2.6份，玉米淀粉0.8~1.5份，苹果酸0.2~0.5份，羧乙基纤维素0.02~0.06份，水13.0~19.5份。与现有技术相比，本发明的有益效果在于：本发明混凝土缓凝剂涂刷于模具上之后可有效减缓与模具接触面混凝土凝结时间，同时对构件内部混凝土强度无影响，此发明原料成本低廉，制备方法简单，无需大型机械设备，性价比高。
Concrete retarder and preparation method thereof
混凝土缓凝剂及其制备方法
ZHAO TIANQI (Autor:in) / QIN JUAN (Autor:in) / WANG JUNYONG (Autor:in)
21.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME