Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbonized cement paste powder high-ductility fiber cement composite material and preparation method thereof
The invention provides a carbonized cement paste powder high-ductility fiber cement composite material and a preparation method thereof. The preparation method comprises the following steps of: firstly, washing waste commercial concrete, conducting screening and filter pressing to obtain a dried cement paste cake, and conducting drying, coarse grinding, carbonization, re-drying and fine grinding to obtain the carbonized cement paste powder; mixing and stirring quartz sand, carbonized cement paste powder, cement, silica fume and nano calcium carbonate; after uniform stirring, adding water, a superplasticizer and an expanding agent, and continuously performing stirring; after uniformly stirring, adding the ultra-high molecular weight PET fibers, and stirring until the fibers are uniformly distributed in the matrix; and finally, pouring the obtained slurry into a mold, and performing molding by utilizing high-frequency mechanical vibration. The invention provides the environment-friendlyhigh-ductility fiber cement composite material with high additional value and the preparation method thereof.
本发明提供了一种碳化水泥浆粉高延性纤维水泥复合材料及其制备方法，包括以下步骤：首先，将废弃商品混凝土经水洗、筛分及压滤获得干化水泥浆饼，通过烘干、粗磨、碳化、再烘干、精磨制备碳化水泥浆粉；将石英砂、碳化水泥浆粉、水泥、硅灰、纳米碳酸钙进行混合搅拌；搅拌均匀后添加水、高效减水剂以及膨胀剂，继续搅拌；待搅拌均匀后，添加超高分子量PET纤维搅拌至纤维均匀分布于基体当中；最后，将所得到的浆体倒入模具中利用高频机械振动成型，本发明提供了一种附加值高且环境友好型高延性纤维水泥复合材料及其制备方法。
Carbonized cement paste powder high-ductility fiber cement composite material and preparation method thereof
The invention provides a carbonized cement paste powder high-ductility fiber cement composite material and a preparation method thereof. The preparation method comprises the following steps of: firstly, washing waste commercial concrete, conducting screening and filter pressing to obtain a dried cement paste cake, and conducting drying, coarse grinding, carbonization, re-drying and fine grinding to obtain the carbonized cement paste powder; mixing and stirring quartz sand, carbonized cement paste powder, cement, silica fume and nano calcium carbonate; after uniform stirring, adding water, a superplasticizer and an expanding agent, and continuously performing stirring; after uniformly stirring, adding the ultra-high molecular weight PET fibers, and stirring until the fibers are uniformly distributed in the matrix; and finally, pouring the obtained slurry into a mold, and performing molding by utilizing high-frequency mechanical vibration. The invention provides the environment-friendlyhigh-ductility fiber cement composite material with high additional value and the preparation method thereof.
本发明提供了一种碳化水泥浆粉高延性纤维水泥复合材料及其制备方法，包括以下步骤：首先，将废弃商品混凝土经水洗、筛分及压滤获得干化水泥浆饼，通过烘干、粗磨、碳化、再烘干、精磨制备碳化水泥浆粉；将石英砂、碳化水泥浆粉、水泥、硅灰、纳米碳酸钙进行混合搅拌；搅拌均匀后添加水、高效减水剂以及膨胀剂，继续搅拌；待搅拌均匀后，添加超高分子量PET纤维搅拌至纤维均匀分布于基体当中；最后，将所得到的浆体倒入模具中利用高频机械振动成型，本发明提供了一种附加值高且环境友好型高延性纤维水泥复合材料及其制备方法。
Carbonized cement paste powder high-ductility fiber cement composite material and preparation method thereof
一种碳化水泥浆粉高延性纤维水泥复合材料及其制备方法
LI JING (Autor:in) / WANG JIANMIAO (Autor:in) / LIANG CHAOFENG (Autor:in) / SANG WEI (Autor:in) / MAO QIQI (Autor:in) / CAI ZHEDONG (Autor:in) / WU HUIXIA (Autor:in) / ZHANG YUMING (Autor:in)
15.12.2020
Patent
Elektronische Ressource
Chinesisch
Composite cement carbonized building material product and preparation method thereof
| Europäisches Patentamt | 2023
High-ductility cement-based composite material and preparation method thereof
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023