Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multifunctional concrete admixture with toughening, air entraining and foam stabilizing functions and preparation method thereof
The invention relates to the technical field of concrete admixtures, in particular to a multifunctional concrete admixture with toughening, air entraining and foam stabilizing functions and a preparation method thereof.The preparation method comprises the steps that an emulsifier is added into water, the mixture is heated to 35-45 DEG C, then a polymer monomer, an initiator and an aqueous solution containing a macromolecular tackifier and an air entraining agent are dropwise added synchronously, and the mixture is stirred to react for 0.5-1.5 h; and heating to 60-70 DEG C, continuously adding the residual polymer monomer and initiator, continuously stirring and reacting for 3-4 hours, and cooling to room temperature to obtain the multifunctional concrete admixture. The obtained multifunctional concrete admixture has multiple functions of toughening, air entraining, foam stabilizing and the like at the same time, not only is the dispersity of the admixture in concrete improved, but also the stability of the admixture can be improved, and the performance of the concrete is guaranteed.
本发明涉及混凝土外加剂技术领域，具体为一种兼具增韧引气和稳泡的多功能混凝土外加剂及其制备方法，将乳化剂加入水中，加热至35～45℃，然后同步滴加聚合物单体、引发剂及包含大分子增粘剂和引气剂的水溶液，搅拌反应0.5～1.5h；然后升温至60～70℃，继续加入剩余的聚合物单体与引发剂，持续搅拌反应3～4h，降至室温，得到多功能混凝土外加剂。如此得到的多功能混凝土外加剂同时具备增韧、引气和稳泡等多功能，不仅改善了外加剂在混凝土中的分散性，还能提高外加剂的稳定性，保证混凝土的性能。
Multifunctional concrete admixture with toughening, air entraining and foam stabilizing functions and preparation method thereof
The invention relates to the technical field of concrete admixtures, in particular to a multifunctional concrete admixture with toughening, air entraining and foam stabilizing functions and a preparation method thereof.The preparation method comprises the steps that an emulsifier is added into water, the mixture is heated to 35-45 DEG C, then a polymer monomer, an initiator and an aqueous solution containing a macromolecular tackifier and an air entraining agent are dropwise added synchronously, and the mixture is stirred to react for 0.5-1.5 h; and heating to 60-70 DEG C, continuously adding the residual polymer monomer and initiator, continuously stirring and reacting for 3-4 hours, and cooling to room temperature to obtain the multifunctional concrete admixture. The obtained multifunctional concrete admixture has multiple functions of toughening, air entraining, foam stabilizing and the like at the same time, not only is the dispersity of the admixture in concrete improved, but also the stability of the admixture can be improved, and the performance of the concrete is guaranteed.
本发明涉及混凝土外加剂技术领域，具体为一种兼具增韧引气和稳泡的多功能混凝土外加剂及其制备方法，将乳化剂加入水中，加热至35～45℃，然后同步滴加聚合物单体、引发剂及包含大分子增粘剂和引气剂的水溶液，搅拌反应0.5～1.5h；然后升温至60～70℃，继续加入剩余的聚合物单体与引发剂，持续搅拌反应3～4h，降至室温，得到多功能混凝土外加剂。如此得到的多功能混凝土外加剂同时具备增韧、引气和稳泡等多功能，不仅改善了外加剂在混凝土中的分散性，还能提高外加剂的稳定性，保证混凝土的性能。
Multifunctional concrete admixture with toughening, air entraining and foam stabilizing functions and preparation method thereof
兼具增韧引气和稳泡的多功能混凝土外加剂及其制备方法
KANG WANG (Autor:in) / HUANG TIANYONG (Autor:in) / ZHAO YUXIANG (Autor:in) / ZHANG HAILONG (Autor:in) / LI SHA (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
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