A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled concrete and preparation method thereof
The invention discloses recycled concrete and a preparation method thereof. Recycled aggregate is subjected to carbonization modification so that the surface uniformity of the recycled aggregate is improved; then the carbonized recycled aggregate is wrapped with cement paste; meanwhile, a water reducing agent and thermoplastic polymer fibers are added as auxiliary agents, so that the porosity generated in the practical process of the concrete powder is reduced; finally, secondary carbonization treatment is performed. In the carbonization process, the originally generated porosity can be filledwith thermoplastic polymer fibers in the heating process, and the porosity is further reduced; meanwhile, the thermoplastic polymer fibers are melted and deformed to form a net-shaped structure in the heating process, particle materials in the net-shaped structure are bound, and therefore the strength of the recycled concrete is improved.
本发明公开了一种再生混凝土及其制备方法，通过对再生骨料进行碳化改性，提高再生骨料的表面的均匀度，然后采用水泥浆对碳化后的再生骨料进行包裹，同时添加减水剂和热塑性高分子纤维作为辅助剂，降低混凝土粉实用过程中产生的孔隙率，最后再进二次碳化处理，在碳化的过程中，原本产生的空隙率会在加热的过程中被热塑性高分子纤维填充，进一步的减少空隙率的产生，同时热塑性高分子纤维在加热的过程中，融化变形形成网状结构，对其中的颗粒物料进行束缚，从而提高再生混凝土的强度。
Recycled concrete and preparation method thereof
The invention discloses recycled concrete and a preparation method thereof. Recycled aggregate is subjected to carbonization modification so that the surface uniformity of the recycled aggregate is improved; then the carbonized recycled aggregate is wrapped with cement paste; meanwhile, a water reducing agent and thermoplastic polymer fibers are added as auxiliary agents, so that the porosity generated in the practical process of the concrete powder is reduced; finally, secondary carbonization treatment is performed. In the carbonization process, the originally generated porosity can be filledwith thermoplastic polymer fibers in the heating process, and the porosity is further reduced; meanwhile, the thermoplastic polymer fibers are melted and deformed to form a net-shaped structure in the heating process, particle materials in the net-shaped structure are bound, and therefore the strength of the recycled concrete is improved.
本发明公开了一种再生混凝土及其制备方法，通过对再生骨料进行碳化改性，提高再生骨料的表面的均匀度，然后采用水泥浆对碳化后的再生骨料进行包裹，同时添加减水剂和热塑性高分子纤维作为辅助剂，降低混凝土粉实用过程中产生的孔隙率，最后再进二次碳化处理，在碳化的过程中，原本产生的空隙率会在加热的过程中被热塑性高分子纤维填充，进一步的减少空隙率的产生，同时热塑性高分子纤维在加热的过程中，融化变形形成网状结构，对其中的颗粒物料进行束缚，从而提高再生混凝土的强度。
Recycled concrete and preparation method thereof
一种再生混凝土及其制备方法
XU GUANGYA (author) / SONG LUN (author) / PAN JIN (author) / NING PEIGUANG (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Recycled concrete, recycled concrete prefabricated part and preparation method thereof
| European Patent Office | 2021