Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled concrete replaced by brick-concrete recycled coarse aggregate and preparation method of recycled concrete
The invention relates to recycled concrete replaced by brick-concrete recycled coarse aggregate. The recycled concrete comprises cement, fly ash, mineral powder, fine aggregate, coarse aggregate, a water reducing agent and water, the coarse aggregate comprises natural coarse aggregate and brick-mixed recycled coarse aggregate, and the mass percentage of the brick-mixed recycled coarse aggregate in the coarse aggregate is 20%-30%; the brick-mixed recycled coarse aggregate is obtained by compounding recycled red brick coarse aggregate and recycled concrete coarse aggregate, and the mass percent of the recycled red brick coarse aggregate is 50%-75%. The brick-concrete recycled coarse aggregate is used for partially replacing natural coarse 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粗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；所述粗骨料包括天然粗骨料和砖混再生粗骨料，所述粗骨料中砖混再生粗骨料的质量百分比为20％～30％；所述砖混再生粗骨料为再生红砖粗骨料和再生混凝土粗骨料复配得到，其中，所述再生红砖粗骨料的质量百分比为50％～75％。本发明利用砖混再生粗骨料部分替代混凝土中的天然粗骨料，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 coarse aggregate and preparation method of recycled concrete
The invention relates to recycled concrete replaced by brick-concrete recycled coarse aggregate. The recycled concrete comprises cement, fly ash, mineral powder, fine aggregate, coarse aggregate, a water reducing agent and water, the coarse aggregate comprises natural coarse aggregate and brick-mixed recycled coarse aggregate, and the mass percentage of the brick-mixed recycled coarse aggregate in the coarse aggregate is 20%-30%; the brick-mixed recycled coarse aggregate is obtained by compounding recycled red brick coarse aggregate and recycled concrete coarse aggregate, and the mass percent of the recycled red brick coarse aggregate is 50%-75%. The brick-concrete recycled coarse aggregate is used for partially replacing natural coarse 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粗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；所述粗骨料包括天然粗骨料和砖混再生粗骨料，所述粗骨料中砖混再生粗骨料的质量百分比为20％～30％；所述砖混再生粗骨料为再生红砖粗骨料和再生混凝土粗骨料复配得到，其中，所述再生红砖粗骨料的质量百分比为50％～75％。本发明利用砖混再生粗骨料部分替代混凝土中的天然粗骨料，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 coarse aggregate and preparation method of recycled concrete
一种砖混再生粗骨料替代的再生混凝土及其制备方法
WANG MIAO (Autor:in) / LI YANLING (Autor:in) / ZHOU WEI (Autor:in) / HE QIANG (Autor:in) / CHEN XIANGJIE (Autor:in) / LIU WENCAI (Autor:in)
18.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022
Polypropylene Fiber Recycled Brick-Concrete Coarse Aggregate Concrete and its Preparation Method
| Europäisches Patentamt | 2021
Recycled brick masonry aggregate concrete
| Emerald Group Publishing | 2013
Preparation method of modified recycled coarse aggregate and recycled concrete
| Europäisches Patentamt | 2024