A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled concrete replaced by brick-concrete recycled fine aggregate and preparation method of recycled concrete
The invention relates to recycled concrete replaced by brick-concrete recycled fine aggregate. The recycled concrete comprises cement, fly ash, mineral powder, fine aggregate, coarse aggregate, a water reducing agent and water, the fine aggregate comprises natural river sand and brick-mixed recycled fine aggregate, and the mass percent of the brick-mixed recycled fine aggregate in the fine aggregate is 10%-25%; the brick-concrete recycled fine aggregate is obtained by compounding recycled red brick fine aggregate and recycled concrete fine aggregate, and the mass percent of the recycled red brick fine aggregate is 50%-75%. The brick-concrete recycled fine aggregate is used for partially replacing natural fine aggregate in the concrete, and the prepared recycled concrete has better cubic compressive strength and axial compressive strength and also has better elastic modulus, Poisson's ratio and frost resistance; the current situation of shortage of natural aggregate supply at present is relieved, and resource application of the building waste is achieved.
本发明涉及一种砖混再生细骨料替代的再生混凝土，所述再生混凝土包括水泥、粉煤灰、矿粉、细骨料、粗骨料、减水剂和水；所述细骨料包括天然河沙和砖混再生细骨料，所述细骨料中砖混再生细骨料的质量百分比为10％～25％；所述砖混再生细骨料为再生红砖细骨料和再生混凝土细骨料复配得到，其中，所述再生红砖细骨料的质量百分比为50％～75％。本发明利用砖混再生细骨料部分替代混凝土中的天然细骨料，制备得到的再生混凝土具有更优的立方体抗压强度和轴心抗压强度，同时具有更优的弹性模量、泊松比和抗冻性能；有助于缓解目前天然骨料供应紧缺的现状，实现建筑废弃物的资源化应用。
Recycled concrete replaced by brick-concrete recycled fine aggregate and preparation method of recycled concrete
The invention relates to recycled concrete replaced by brick-concrete recycled fine aggregate. The recycled concrete comprises cement, fly ash, mineral powder, fine aggregate, coarse aggregate, a water reducing agent and water, the fine aggregate comprises natural river sand and brick-mixed recycled fine aggregate, and the mass percent of the brick-mixed recycled fine aggregate in the fine aggregate is 10%-25%; the brick-concrete recycled fine aggregate is obtained by compounding recycled red brick fine aggregate and recycled concrete fine aggregate, and the mass percent of the recycled red brick fine aggregate is 50%-75%. The brick-concrete recycled fine aggregate is used for partially replacing natural fine aggregate in the concrete, and the prepared recycled concrete has better cubic compressive strength and axial compressive strength and also has better elastic modulus, Poisson's ratio and frost resistance; the current situation of shortage of natural aggregate supply at present is relieved, and resource application of the building waste is achieved.
本发明涉及一种砖混再生细骨料替代的再生混凝土，所述再生混凝土包括水泥、粉煤灰、矿粉、细骨料、粗骨料、减水剂和水；所述细骨料包括天然河沙和砖混再生细骨料，所述细骨料中砖混再生细骨料的质量百分比为10％～25％；所述砖混再生细骨料为再生红砖细骨料和再生混凝土细骨料复配得到，其中，所述再生红砖细骨料的质量百分比为50％～75％。本发明利用砖混再生细骨料部分替代混凝土中的天然细骨料，制备得到的再生混凝土具有更优的立方体抗压强度和轴心抗压强度，同时具有更优的弹性模量、泊松比和抗冻性能；有助于缓解目前天然骨料供应紧缺的现状，实现建筑废弃物的资源化应用。
Recycled concrete replaced by brick-concrete recycled fine aggregate and preparation method of recycled concrete
一种砖混再生细骨料替代的再生混凝土及其制备方法
WANG MIAO (author) / LI YANLING (author) / ZHOU WEI (author) / CHEN XIANGJIE (author) / HE QIANG (author) / LIU WENCAI (author)
2022-03-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
| European Patent Office | 2022
Recycled brick masonry aggregate concrete
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