Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of concrete water reducing agent
The invention belongs to the technical field of concrete additives, and particularly relates to a preparation method of a concrete water reducing agent. Sodium alginate is used as a basic raw material, microspheres are formed under the action of calcium chloride, additives are doped in the microspheres, then the microspheres are mixed with ethyl orthosilicate and the like, formed gel is attached to the surfaces of the microspheres in the hydrolysis process of the ethyl orthosilicate, spray drying is conducted, particles with calcium alginate as the inner cores are obtained, calcination is conducted, internal calcium alginate can be decompose through calcination to form porous silicon dioxide particles with internal cavities, additives are uniformly dispersed in pores and react with mixed monomers and the like, the mixed monomers are firstly used to form a water reducing agent and dispersed in the porous particles, auxiliary monomers are used to form a coating material, and the added synergist is loaded by the porous particles, is wrapped by the wrapping material and is compounded with the water reducing agent, so that the concrete water reducing agent is obtained.
本发明属于混凝土添加剂技术领域，具体涉及一种混凝土减水剂的制备方法。本发明以海藻酸钠作为基础原料，通过利用氯化钙的作用形成微球，其中掺杂添加料，随后与正硅酸乙酯等进行混合，在正硅酸乙酯进行水解的过程，形成的凝胶附着在微球表面，喷雾干燥，获得内核为海藻酸钙的颗粒，煅烧，通过煅烧可以使内部的海藻酸钙进行分解，形成内部空腔的多孔二氧化硅颗粒，同时添加料均匀分散在孔隙，再与混合单体等进行反应，首选利用混合单体形成减水剂，分散在多孔颗粒内部，同时利用辅助单体形成包裹材料，而且加入的增效剂被多孔颗粒进行负载，通过包裹材料进行包裹，并且与减水剂进行复配，从而得到混凝土减水剂。
Preparation method of concrete water reducing agent
The invention belongs to the technical field of concrete additives, and particularly relates to a preparation method of a concrete water reducing agent. Sodium alginate is used as a basic raw material, microspheres are formed under the action of calcium chloride, additives are doped in the microspheres, then the microspheres are mixed with ethyl orthosilicate and the like, formed gel is attached to the surfaces of the microspheres in the hydrolysis process of the ethyl orthosilicate, spray drying is conducted, particles with calcium alginate as the inner cores are obtained, calcination is conducted, internal calcium alginate can be decompose through calcination to form porous silicon dioxide particles with internal cavities, additives are uniformly dispersed in pores and react with mixed monomers and the like, the mixed monomers are firstly used to form a water reducing agent and dispersed in the porous particles, auxiliary monomers are used to form a coating material, and the added synergist is loaded by the porous particles, is wrapped by the wrapping material and is compounded with the water reducing agent, so that the concrete water reducing agent is obtained.
本发明属于混凝土添加剂技术领域，具体涉及一种混凝土减水剂的制备方法。本发明以海藻酸钠作为基础原料，通过利用氯化钙的作用形成微球，其中掺杂添加料，随后与正硅酸乙酯等进行混合，在正硅酸乙酯进行水解的过程，形成的凝胶附着在微球表面，喷雾干燥，获得内核为海藻酸钙的颗粒，煅烧，通过煅烧可以使内部的海藻酸钙进行分解，形成内部空腔的多孔二氧化硅颗粒，同时添加料均匀分散在孔隙，再与混合单体等进行反应，首选利用混合单体形成减水剂，分散在多孔颗粒内部，同时利用辅助单体形成包裹材料，而且加入的增效剂被多孔颗粒进行负载，通过包裹材料进行包裹，并且与减水剂进行复配，从而得到混凝土减水剂。
Preparation method of concrete water reducing agent
一种混凝土减水剂的制备方法
TAN GUIHONG (Autor:in)
16.03.2021
Patent
Elektronische Ressource
Chinesisch
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