Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestressed fiber woven mesh reinforced super-early-strength high-performance cement-based composite material and preparation method thereof
The invention discloses a prestressed fiber woven mesh reinforced super-early-strength high-performance cement-based composite material and a preparation method thereof.According to the scheme, firstly, carbon fiber tows of a fiber woven mesh are tensioned in advance, and the fiber tows are fully impregnated with epoxy resin; then, uniformly throwing quartz sand on the surface of the fiber tow when the epoxy resin is not cured; and finally, fixing the pre-tensioned fiber woven mesh subjected to epoxy resin curing in a mold, rapidly pouring the stirred super-early-strength high-performance cement mortar into the mold, filling the mold with the cement mortar, troweling the cement mortar, and then standing and curing the cement mortar to obtain the pre-stressed fiber woven mesh reinforced super-early-strength high-performance cement-based composite material. According to the scheme, the early mechanical property of the composite mortar can be improved, the overall stress performance and the stress path of the fiber tows in the TRC can be improved, the interface bonding characteristic of the fiber tows and a mortar matrix can be improved, and the low-carbon and low-energy-consumption TRC component which is high in strength, good in toughness, high in crack control capacity, high in prefabrication efficiency and simple in maintenance condition is obtained.
本发明公开了一种预应力纤维编织网增强超早强高性能水泥基复合材料及制备方法，本方案首先对纤维编织网的碳纤维丝束进行预先张拉，并使纤维丝束充分浸渍环氧树脂；接着，在环氧树脂未固化时在纤维丝束表面均匀抛洒石英砂；最后，将环氧树脂固化后的预张拉纤维编织网固定于模具中，将搅拌好的超早强高性能水泥砂浆快速倒入模具中，填满模具并抹平，随后静置养护，得到预应力纤维编织网增强超早强高性能水泥基复合材料。本方案能够提升复合砂浆早期力学性能，改善TRC中纤维丝束的整体受力性能、受力路径，改善纤维丝束与砂浆基体的界面粘接特性，获得强度高、韧性好、裂缝控制能力强，且预制效率高、养护条件简单的低碳低能耗TRC构件。
Prestressed fiber woven mesh reinforced super-early-strength high-performance cement-based composite material and preparation method thereof
The invention discloses a prestressed fiber woven mesh reinforced super-early-strength high-performance cement-based composite material and a preparation method thereof.According to the scheme, firstly, carbon fiber tows of a fiber woven mesh are tensioned in advance, and the fiber tows are fully impregnated with epoxy resin; then, uniformly throwing quartz sand on the surface of the fiber tow when the epoxy resin is not cured; and finally, fixing the pre-tensioned fiber woven mesh subjected to epoxy resin curing in a mold, rapidly pouring the stirred super-early-strength high-performance cement mortar into the mold, filling the mold with the cement mortar, troweling the cement mortar, and then standing and curing the cement mortar to obtain the pre-stressed fiber woven mesh reinforced super-early-strength high-performance cement-based composite material. According to the scheme, the early mechanical property of the composite mortar can be improved, the overall stress performance and the stress path of the fiber tows in the TRC can be improved, the interface bonding characteristic of the fiber tows and a mortar matrix can be improved, and the low-carbon and low-energy-consumption TRC component which is high in strength, good in toughness, high in crack control capacity, high in prefabrication efficiency and simple in maintenance condition is obtained.
本发明公开了一种预应力纤维编织网增强超早强高性能水泥基复合材料及制备方法，本方案首先对纤维编织网的碳纤维丝束进行预先张拉，并使纤维丝束充分浸渍环氧树脂；接着，在环氧树脂未固化时在纤维丝束表面均匀抛洒石英砂；最后，将环氧树脂固化后的预张拉纤维编织网固定于模具中，将搅拌好的超早强高性能水泥砂浆快速倒入模具中，填满模具并抹平，随后静置养护，得到预应力纤维编织网增强超早强高性能水泥基复合材料。本方案能够提升复合砂浆早期力学性能，改善TRC中纤维丝束的整体受力性能、受力路径，改善纤维丝束与砂浆基体的界面粘接特性，获得强度高、韧性好、裂缝控制能力强，且预制效率高、养护条件简单的低碳低能耗TRC构件。
Prestressed fiber woven mesh reinforced super-early-strength high-performance cement-based composite material and preparation method thereof
一种预应力纤维编织网增强超早强高性能水泥基复合材料及制备方法
MU FUJIANG (Autor:in) / GUI QIANG (Autor:in) / PAN SHAOXUE (Autor:in) / HUO LIANGLIANG (Autor:in) / LI DELE (Autor:in)
23.01.2024
Patent
Elektronische Ressource
Chinesisch
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