Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement strength synergist as well as preparation method and application thereof
The invention discloses a cement strength synergist which is prepared by the following steps: drying and grinding lithium slag, and mixing the ground lithium slag with an aqueous solution of a polyhydric alcohol amine compound A with the concentration of 2-4wt% to obtain treated lithium slag; adding a silane coupling agent into the aqueous solution of the binary organic acid under a stirring condition, and hydrolyzing for 10-15 minutes to obtain a silane coupling agent treatment solution; sequentially adding the obtained silane coupling agent treating fluid and the residual binary organic acid compound into the obtained lithium slag, stirring at room temperature, and performing vacuum drying to obtain a mixture; sequentially adding a polyhydric alcohol amine compound B and an inorganic salt compound into the obtained mixture, and then putting the mixture into a mixer for mixing for 30-60 minutes to obtain the cement strength synergist, according to the invention, the lithium slag is used as a carrier, the polyhydric alcohol amine is filled in the carrier, and the silane coupling agent and the binary organic acid are coated on the surface, so that the problem that the polyhydric alcohol amine is consumed in early hydration of cement is effectively solved, and the reinforcing substance is gradually released by reaction under the alkaline condition provided by the hydration of the cement and is matched with the whole-process reinforcing effect of the hydration of the cement.
本发明公开了一种水泥强度增效剂，将锂渣烘干、研磨，与浓度2～4wt％多元醇胺化合物A的水溶液混合，得到处理后的锂渣；在搅拌条件下向二元有机酸的水溶液中加入硅烷偶联剂水解10～15min，得到硅烷偶联剂处理液；向所得锂渣中依次加入所得硅烷偶联剂处理液以及剩余的二元有机酸化合物，室温下搅拌，真空干燥得到混合物；向所得混合物中依次加入多元醇胺化合物B、无机盐化合物，然后置于混料机中混合30～60min，得到所述水泥强度增效剂；本发明以锂渣为载体，多元醇胺填充于其中，硅烷偶联剂、二元有机酸包覆于表面，有效解决了多元醇胺在水泥早期水化被消耗的问题，在水泥水化提供的碱性条件下逐渐反应释放出增强物质，匹配水泥水化进行的全过程增强效果。
Cement strength synergist as well as preparation method and application thereof
The invention discloses a cement strength synergist which is prepared by the following steps: drying and grinding lithium slag, and mixing the ground lithium slag with an aqueous solution of a polyhydric alcohol amine compound A with the concentration of 2-4wt% to obtain treated lithium slag; adding a silane coupling agent into the aqueous solution of the binary organic acid under a stirring condition, and hydrolyzing for 10-15 minutes to obtain a silane coupling agent treatment solution; sequentially adding the obtained silane coupling agent treating fluid and the residual binary organic acid compound into the obtained lithium slag, stirring at room temperature, and performing vacuum drying to obtain a mixture; sequentially adding a polyhydric alcohol amine compound B and an inorganic salt compound into the obtained mixture, and then putting the mixture into a mixer for mixing for 30-60 minutes to obtain the cement strength synergist, according to the invention, the lithium slag is used as a carrier, the polyhydric alcohol amine is filled in the carrier, and the silane coupling agent and the binary organic acid are coated on the surface, so that the problem that the polyhydric alcohol amine is consumed in early hydration of cement is effectively solved, and the reinforcing substance is gradually released by reaction under the alkaline condition provided by the hydration of the cement and is matched with the whole-process reinforcing effect of the hydration of the cement.
本发明公开了一种水泥强度增效剂，将锂渣烘干、研磨，与浓度2～4wt％多元醇胺化合物A的水溶液混合，得到处理后的锂渣；在搅拌条件下向二元有机酸的水溶液中加入硅烷偶联剂水解10～15min，得到硅烷偶联剂处理液；向所得锂渣中依次加入所得硅烷偶联剂处理液以及剩余的二元有机酸化合物，室温下搅拌，真空干燥得到混合物；向所得混合物中依次加入多元醇胺化合物B、无机盐化合物，然后置于混料机中混合30～60min，得到所述水泥强度增效剂；本发明以锂渣为载体，多元醇胺填充于其中，硅烷偶联剂、二元有机酸包覆于表面，有效解决了多元醇胺在水泥早期水化被消耗的问题，在水泥水化提供的碱性条件下逐渐反应释放出增强物质，匹配水泥水化进行的全过程增强效果。
Cement strength synergist as well as preparation method and application thereof
一种水泥强度增效剂及其制备方法和应用
LI YEQING (Autor:in) / HUANG GUOXIONG (Autor:in) / ZOU DI (Autor:in) / YU SONGBAI (Autor:in) / LIU ZIHUA (Autor:in) / WANG KEWEI (Autor:in)
23.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Cement strength synergist and preparation method thereof
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2022
Concrete synergist as well as preparation method and application thereof
| Europäisches Patentamt | 2021