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A platform for research: civil engineering, architecture and urbanism
High-volume solid waste concrete and preparation method thereof
The invention discloses high-volume solid waste concrete and a preparation method thereof. The concrete comprises the following components in parts by weight: 173-187 parts of cement, 172-187 parts ofa composite admixture, 0-362 parts of machine-made sand of tailings, 400-424 parts of natural sand, 0-313 parts of recycled fine aggregate, 1063-1080 parts of reinforced recycled coarse aggregate, 0-3.63 parts of a polycarboxylate superplasticizer and 159-243 parts of water. The 28-d strength of the high-volume solid waste concrete reaches 36 MPa or above, the durability of the concrete is good,and the proportion of recycled aggregate in the recycled concrete is increased; and solid waste such as construction waste is utilized on a large scale, the resource utilization level of the construction waste is improved, and the current situation that natural sandstone aggregate is extremely short at present is relieved.
大掺量固废混凝土及其制备方法。按重量份数计：水泥173～187份、复合掺合料172～187份、尾矿机制砂0～362份、天然砂400～424份、再生细骨料0～313份、强化再生粗骨料1063～1080份、聚羧酸减水剂0～3.63份、水159～243份。本发明的大掺量固废混凝土28d强度达到36MPa以上，耐久性良好，提高了再生混凝土中再生骨料比例；大规模利用建筑垃圾等固体废弃物，提高了建筑垃圾的资源化利用水平，又缓解目前天然砂石骨料极度紧缺的现状。
High-volume solid waste concrete and preparation method thereof
The invention discloses high-volume solid waste concrete and a preparation method thereof. The concrete comprises the following components in parts by weight: 173-187 parts of cement, 172-187 parts ofa composite admixture, 0-362 parts of machine-made sand of tailings, 400-424 parts of natural sand, 0-313 parts of recycled fine aggregate, 1063-1080 parts of reinforced recycled coarse aggregate, 0-3.63 parts of a polycarboxylate superplasticizer and 159-243 parts of water. The 28-d strength of the high-volume solid waste concrete reaches 36 MPa or above, the durability of the concrete is good,and the proportion of recycled aggregate in the recycled concrete is increased; and solid waste such as construction waste is utilized on a large scale, the resource utilization level of the construction waste is improved, and the current situation that natural sandstone aggregate is extremely short at present is relieved.
大掺量固废混凝土及其制备方法。按重量份数计：水泥173～187份、复合掺合料172～187份、尾矿机制砂0～362份、天然砂400～424份、再生细骨料0～313份、强化再生粗骨料1063～1080份、聚羧酸减水剂0～3.63份、水159～243份。本发明的大掺量固废混凝土28d强度达到36MPa以上，耐久性良好，提高了再生混凝土中再生骨料比例；大规模利用建筑垃圾等固体废弃物，提高了建筑垃圾的资源化利用水平，又缓解目前天然砂石骨料极度紧缺的现状。
High-volume solid waste concrete and preparation method thereof
大掺量固废混凝土及其制备方法
QIAN YAOLI (author) / YANG LIXIANG (author) / XIA YUEHUI (author) / LU MEIRONG (author) / HAN YUNTING (author) / LI YANG (author)
2021-02-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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