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A platform for research: civil engineering, architecture and urbanism
High-performance recycled concrete and preparation method thereof
The invention belongs to the technical field of recycled concrete preparation, and relates to high-performance recycled concrete and a preparation method thereof. The high-performance recycled concrete is prepared from the following raw materials: cement, an admixture, recycled aggregate, a PCA-I type polycarboxylic acid high-performance water reducing agent and a geopolymer additive. The particle size ratio of the recycled fine aggregate is limited, so that the recycled fine aggregate and the recycled coarse aggregate are subjected to gradient grading, and pores of part of the coarse aggregate are filled; the geopolymer admixture is mixed with the admixture, and pores of the coarse aggregate are further filled in the stirring process, so that the mechanical strength of the prepared concrete is improved, and the application field of the recycled concrete is widened.
本发明属于再生混凝土制备技术领域，涉及一种高性能再生混凝土及其制备方法。高性能再生混凝土的原料包括：水泥、掺合料、再生骨料、PCA‑I型聚羧酸高性能减水剂、地聚合物外加剂和本发明通过对于再生细骨料的粒径配比进行限定，从而与再生粗骨料进行梯度级配，填充了部分粗骨料的孔隙，进而在将地聚合物外加剂与掺合料混合，在搅拌过程中进一步填充了粗骨料的孔隙，从而提升了制备得到的混凝土的力学强度，拓宽了再生混凝土的应用领域。
High-performance recycled concrete and preparation method thereof
The invention belongs to the technical field of recycled concrete preparation, and relates to high-performance recycled concrete and a preparation method thereof. The high-performance recycled concrete is prepared from the following raw materials: cement, an admixture, recycled aggregate, a PCA-I type polycarboxylic acid high-performance water reducing agent and a geopolymer additive. The particle size ratio of the recycled fine aggregate is limited, so that the recycled fine aggregate and the recycled coarse aggregate are subjected to gradient grading, and pores of part of the coarse aggregate are filled; the geopolymer admixture is mixed with the admixture, and pores of the coarse aggregate are further filled in the stirring process, so that the mechanical strength of the prepared concrete is improved, and the application field of the recycled concrete is widened.
本发明属于再生混凝土制备技术领域，涉及一种高性能再生混凝土及其制备方法。高性能再生混凝土的原料包括：水泥、掺合料、再生骨料、PCA‑I型聚羧酸高性能减水剂、地聚合物外加剂和本发明通过对于再生细骨料的粒径配比进行限定，从而与再生粗骨料进行梯度级配，填充了部分粗骨料的孔隙，进而在将地聚合物外加剂与掺合料混合，在搅拌过程中进一步填充了粗骨料的孔隙，从而提升了制备得到的混凝土的力学强度，拓宽了再生混凝土的应用领域。
High-performance recycled concrete and preparation method thereof
一种高性能再生混凝土及其制备方法
GUAN QIAOYAN (author) / WANG JUAN (author) / SHI KE (author) / LI HAN (author) / LI RUI (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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