A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ultrahigh-performance recycled concrete and preparation method thereof
The invention belongs to the technical field of building materials, and discloses ultra-high performance recycled concrete and a preparation method thereof. Aiming at the characteristics of the waste concrete recycled fine aggregate, the acrylic emulsion and the micro-nano mineral fiber are adopted to carry out defect repair on the waste concrete recycled fine aggregate, and the acrylic emulsion is beneficial to reducing the water absorption rate of the waste concrete recycled fine aggregate; according to the present invention, the acrylic emulsion and the micro-nano-scale mineral fiber jointly improve the strength of the waste concrete recycled fine aggregate so as to ensure that the obtained ultra-high performance recycled concrete has good workability and good mechanical property, and in addition, the rubber material system of the ultra-high performance recycled concrete is reasonably designed so as to improve the strength of the waste concrete recycled fine aggregate; the microbeads and the heavy calcium carbonate are added in a large mixing amount and are matched with the slurry consistency regulator for use, so that the fluidity of the obtained ultra-high performance recycled concrete can be effectively improved, and the viscosity of the ultra-high performance recycled concrete is reduced.
本发明属于建筑材料技术领域，本发明公开了一种超高性能再生混凝土及其制备方法。本发明针对废弃混凝土再生细骨料的特点，采用丙烯酸乳液和微纳米级矿物纤维对废弃混凝土再生细骨料进行缺陷修补，丙烯酸乳液有利于降低废弃混凝土再生细骨料的吸水率，丙烯酸乳液和微纳米级矿物纤维二者共同提高废弃混凝土再生细骨料自身强度，从而保证所得的超高性能再生混凝土具有良好的工作性和力学性能，此外，本发明通过合理设计超高性能再生混凝土的胶材体系，大掺量加入微珠、重质碳酸钙并配合浆体稠度调节剂的使用，可有效提高所得的超高性能再生混凝土的流动度并降低其黏度。
Ultrahigh-performance recycled concrete and preparation method thereof
The invention belongs to the technical field of building materials, and discloses ultra-high performance recycled concrete and a preparation method thereof. Aiming at the characteristics of the waste concrete recycled fine aggregate, the acrylic emulsion and the micro-nano mineral fiber are adopted to carry out defect repair on the waste concrete recycled fine aggregate, and the acrylic emulsion is beneficial to reducing the water absorption rate of the waste concrete recycled fine aggregate; according to the present invention, the acrylic emulsion and the micro-nano-scale mineral fiber jointly improve the strength of the waste concrete recycled fine aggregate so as to ensure that the obtained ultra-high performance recycled concrete has good workability and good mechanical property, and in addition, the rubber material system of the ultra-high performance recycled concrete is reasonably designed so as to improve the strength of the waste concrete recycled fine aggregate; the microbeads and the heavy calcium carbonate are added in a large mixing amount and are matched with the slurry consistency regulator for use, so that the fluidity of the obtained ultra-high performance recycled concrete can be effectively improved, and the viscosity of the ultra-high performance recycled concrete is reduced.
本发明属于建筑材料技术领域，本发明公开了一种超高性能再生混凝土及其制备方法。本发明针对废弃混凝土再生细骨料的特点，采用丙烯酸乳液和微纳米级矿物纤维对废弃混凝土再生细骨料进行缺陷修补，丙烯酸乳液有利于降低废弃混凝土再生细骨料的吸水率，丙烯酸乳液和微纳米级矿物纤维二者共同提高废弃混凝土再生细骨料自身强度，从而保证所得的超高性能再生混凝土具有良好的工作性和力学性能，此外，本发明通过合理设计超高性能再生混凝土的胶材体系，大掺量加入微珠、重质碳酸钙并配合浆体稠度调节剂的使用，可有效提高所得的超高性能再生混凝土的流动度并降低其黏度。
Ultrahigh-performance recycled concrete and preparation method thereof
一种超高性能再生混凝土及其制备方法
LI BEIXING (author) / YI HAO (author) / CHEN XIAO (author) / LI FUZHOU (author)
2023-06-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-performance recycled concrete and preparation method thereof
| European Patent Office | 2024
Recycled concrete, recycled concrete prefabricated part and preparation method thereof
| European Patent Office | 2021
High-performance recycled concrete and preparation method thereof
| European Patent Office | 2022
Ultrahigh-performance low-carbon concrete and preparation method thereof
| European Patent Office | 2024
Green high-performance recycled concrete and preparation method thereof
| European Patent Office | 2021