Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water reducing agent for pressing concrete as well as preparation method and application of water reducing agent
The invention provides a water reducing agent for pressing concrete as well as a preparation method and application thereof, and belongs to the technical field of additives for concrete. The raw materials of the water reducing agent for the concrete comprise a modified polycarboxylic acid water reducing agent, acrylic acid, a cross-linking agent and an initiator, the water reducing agent is mainly prepared by compounding a slow-release water reducing agent and a hydrogel material, and in the preparation process, the hydrogel prepared from acrylic acid and hyaluronic acid monomers and the slow-release water reducing agent play a role together, so that the water reducing agent for the concrete is prepared. When the hydrogel absorbs water, the ester group of the slow-release water reducing agent begins to hydrolyze and participates in the reaction, and when the hydrogel absorbs water to be saturated, the water reducing agent plays a role. In the process of preparing the concrete by using the water reducing agent for the concrete, a hydrogel structure is crushed by a pressing method, internal free moisture is extruded out, so that the whole body is kept in a relatively dry state, and the demolded and formed concrete can be used for pressing small components, such as raised floors, cement-based pavements and the like.
本发明提出了一种压制混凝土用减水剂及其制备方法与应用，属于混凝土用添加剂技术领域。本发明的混凝土用减水剂原料包括改性聚羧酸减水剂、丙烯酸、交联剂和引发剂，其主要由缓释型减水剂与水凝胶材料复合制备而成，在制备过程中，利用丙烯酸和透明质酸单体制备的水凝胶及缓释型减水剂共同发挥作用，在水凝胶吸水的同时，缓释型减水剂的酯基开始水解，参与反应，当水凝胶吸水饱和后，减水剂发挥作用。使用上述混凝土用减水剂制备混凝土的过程中，通过压制方法水凝胶结构被压破，内部自由水分被挤出，使整体保持较干燥的状态，脱模成型的混凝土可以用来压制小型构件，比如架空地板、水泥基的路面等。
Water reducing agent for pressing concrete as well as preparation method and application of water reducing agent
The invention provides a water reducing agent for pressing concrete as well as a preparation method and application thereof, and belongs to the technical field of additives for concrete. The raw materials of the water reducing agent for the concrete comprise a modified polycarboxylic acid water reducing agent, acrylic acid, a cross-linking agent and an initiator, the water reducing agent is mainly prepared by compounding a slow-release water reducing agent and a hydrogel material, and in the preparation process, the hydrogel prepared from acrylic acid and hyaluronic acid monomers and the slow-release water reducing agent play a role together, so that the water reducing agent for the concrete is prepared. When the hydrogel absorbs water, the ester group of the slow-release water reducing agent begins to hydrolyze and participates in the reaction, and when the hydrogel absorbs water to be saturated, the water reducing agent plays a role. In the process of preparing the concrete by using the water reducing agent for the concrete, a hydrogel structure is crushed by a pressing method, internal free moisture is extruded out, so that the whole body is kept in a relatively dry state, and the demolded and formed concrete can be used for pressing small components, such as raised floors, cement-based pavements and the like.
本发明提出了一种压制混凝土用减水剂及其制备方法与应用，属于混凝土用添加剂技术领域。本发明的混凝土用减水剂原料包括改性聚羧酸减水剂、丙烯酸、交联剂和引发剂，其主要由缓释型减水剂与水凝胶材料复合制备而成，在制备过程中，利用丙烯酸和透明质酸单体制备的水凝胶及缓释型减水剂共同发挥作用，在水凝胶吸水的同时，缓释型减水剂的酯基开始水解，参与反应，当水凝胶吸水饱和后，减水剂发挥作用。使用上述混凝土用减水剂制备混凝土的过程中，通过压制方法水凝胶结构被压破，内部自由水分被挤出，使整体保持较干燥的状态，脱模成型的混凝土可以用来压制小型构件，比如架空地板、水泥基的路面等。
Water reducing agent for pressing concrete as well as preparation method and application of water reducing agent
一种压制混凝土用减水剂及其制备方法与应用
XIA CHUNLEI (Autor:in) / LIU XIAO (Autor:in) / ZHANG XIONGFEI (Autor:in) / ZHANG YUHANG (Autor:in) / XIAO YANZHEN (Autor:in) / ZHENG YUNSHENG (Autor:in) / ZHU YIZHOU (Autor:in) / LI YANXI (Autor:in)
25.10.2024
Patent
Elektronische Ressource
Chinesisch
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