Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-toughness cement-based material as well as preparation method and application thereof
The invention relates to a high-toughness cement-based material and a preparation method and application thereof, and the preparation method of the high-toughness cement-based material comprises the following steps: mixing a polymer monomer with water, respectively adding an initiator solution and a cross-linking agent solution into the solution, and mixing an anti-dispersing agent with the obtained solution to obtain a polymerization solution; ordinary Portland cement is added into the polymerization solution, and pouring forming is conducted after stirring. Compared with the prior art, in the cement-based material, monomer in-situ polymerization and the anti-dispersing agent polymer are interwoven and communicated with each other in the cement-based material to form a double-polymer network, so that the dispersity of a macromolecular network structure formed by adsorbing the cement-based material by the polymer network in the conveying process in a large-height-difference and deep-water area is exerted; meanwhile, through in-situ polymerization of functional groups and a cement-based material, the compressive strength, breaking strength and toughness of the hardened cement-based connecting material are greatly improved, and the overall impact toughness and durability of a deepwater structure are remarkably enhanced.
本发明涉及一种高韧性水泥基材料及其制备方法与应用，所述高韧性水泥基材料的制备方法包括如下步骤：将聚合物单体和水混合后，将引发剂和交联剂溶液分别加入溶液，再将抗分散剂与所得溶液混合，得到聚合溶液；将普通硅酸盐水泥加入到聚合溶液中，经搅拌后进行浇筑成型。与现有技术相比，本发明在水泥基材料中通过单体原位聚合与抗分散剂聚合物相互交织贯通于水泥基材料中形成双聚合物网络，既发挥聚合物网络吸附水泥基材料形成大分子网络结构在大高差、深水区输送过程中的分散性，同时通过其功能基团与水泥基材料的原位聚合大幅提升硬化后水泥基连接材料的抗压强度、抗折强度及韧性，并显著增强深水结构整体的抗冲击韧性与耐久性。
High-toughness cement-based material as well as preparation method and application thereof
The invention relates to a high-toughness cement-based material and a preparation method and application thereof, and the preparation method of the high-toughness cement-based material comprises the following steps: mixing a polymer monomer with water, respectively adding an initiator solution and a cross-linking agent solution into the solution, and mixing an anti-dispersing agent with the obtained solution to obtain a polymerization solution; ordinary Portland cement is added into the polymerization solution, and pouring forming is conducted after stirring. Compared with the prior art, in the cement-based material, monomer in-situ polymerization and the anti-dispersing agent polymer are interwoven and communicated with each other in the cement-based material to form a double-polymer network, so that the dispersity of a macromolecular network structure formed by adsorbing the cement-based material by the polymer network in the conveying process in a large-height-difference and deep-water area is exerted; meanwhile, through in-situ polymerization of functional groups and a cement-based material, the compressive strength, breaking strength and toughness of the hardened cement-based connecting material are greatly improved, and the overall impact toughness and durability of a deepwater structure are remarkably enhanced.
本发明涉及一种高韧性水泥基材料及其制备方法与应用，所述高韧性水泥基材料的制备方法包括如下步骤：将聚合物单体和水混合后，将引发剂和交联剂溶液分别加入溶液，再将抗分散剂与所得溶液混合，得到聚合溶液；将普通硅酸盐水泥加入到聚合溶液中，经搅拌后进行浇筑成型。与现有技术相比，本发明在水泥基材料中通过单体原位聚合与抗分散剂聚合物相互交织贯通于水泥基材料中形成双聚合物网络，既发挥聚合物网络吸附水泥基材料形成大分子网络结构在大高差、深水区输送过程中的分散性，同时通过其功能基团与水泥基材料的原位聚合大幅提升硬化后水泥基连接材料的抗压强度、抗折强度及韧性，并显著增强深水结构整体的抗冲击韧性与耐久性。
High-toughness cement-based material as well as preparation method and application thereof
一种高韧性水泥基材料及其制备方法与应用
WU KAI (Autor:in) / CHEN YUTING (Autor:in) / XU LINGLIN (Autor:in) / LI PEIZHEN (Autor:in) / LONG JIANGFENG (Autor:in) / YANG XIAOJIE (Autor:in) / CAI QIANG (Autor:in) / HE XINDONG (Autor:in)
10.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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