A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Regenerated PET fiber reinforced recycled concrete and preparation method thereof
The invention provides recycled PET fiber reinforced recycled concrete and a preparation method thereof.The recycled concrete is prepared from, by mass, 360-380 parts of cement, 580-620 parts of sand, 580-620 parts of natural coarse aggregate, 580-620 parts of recycled coarse aggregate, 7-28 parts of PET fiber, 150-170 parts of water and 2-3 parts of a water reducing agent, the recycled coarse aggregate is waste concrete coarse particles with the particle size ranging from 4.75 mm to 26.5 mm, and the recycled coarse aggregate is waste concrete coarse particles with the particle size ranging from 4.75 mm to 26.5 mm. The prepared concrete is recycled concrete with the recycled aggregate replacement rate of 50%. The recycled concrete formed by crushing the waste concrete is used as a substitute of the natural gravel, so that the problem of shortage of the natural gravel can be effectively solved; the regenerated plastic fiber is used as a substitute of common steel fiber, basalt fiber and synthetic large-class fiber, and can effectively relieve the problems of mineral fiber resource shortage, increasingly serious white pollution and the like. Compared with common recycled concrete, the fiber concrete prepared by the invention has the advantages of high initial crack strength, ductile failure and the like.
本发明提供一种再生PET纤维增强再生混凝土及制备方法，所述再生混凝土包括如下组分，以质量份数计：水泥360～380份，砂580～620份，天然粗骨料580～620份，再生粗骨料580～620份，PET纤维7～28份，水150～170份，减水剂2～3份，所述再生粗骨料为粒径介于4.75 mm～26.5 mm的废弃混凝土粗颗粒，所制得混凝土为再生骨料替代率为50%的再生混凝土。本发明采用废弃混凝土破碎而成的再生混凝土作为天然砂石的替代品，可有效解决天然砂石短缺问题；再生塑料纤维作为常见钢纤维、玄武岩纤维及合成大类纤维的替代品，可有效缓解矿物纤维资源短缺及白色污染日渐严重等问题。本发明制备得到的纤维混凝土较普通再生混凝土具有初裂强度高、破坏形式为延性破坏等优点。
Regenerated PET fiber reinforced recycled concrete and preparation method thereof
The invention provides recycled PET fiber reinforced recycled concrete and a preparation method thereof.The recycled concrete is prepared from, by mass, 360-380 parts of cement, 580-620 parts of sand, 580-620 parts of natural coarse aggregate, 580-620 parts of recycled coarse aggregate, 7-28 parts of PET fiber, 150-170 parts of water and 2-3 parts of a water reducing agent, the recycled coarse aggregate is waste concrete coarse particles with the particle size ranging from 4.75 mm to 26.5 mm, and the recycled coarse aggregate is waste concrete coarse particles with the particle size ranging from 4.75 mm to 26.5 mm. The prepared concrete is recycled concrete with the recycled aggregate replacement rate of 50%. The recycled concrete formed by crushing the waste concrete is used as a substitute of the natural gravel, so that the problem of shortage of the natural gravel can be effectively solved; the regenerated plastic fiber is used as a substitute of common steel fiber, basalt fiber and synthetic large-class fiber, and can effectively relieve the problems of mineral fiber resource shortage, increasingly serious white pollution and the like. Compared with common recycled concrete, the fiber concrete prepared by the invention has the advantages of high initial crack strength, ductile failure and the like.
本发明提供一种再生PET纤维增强再生混凝土及制备方法，所述再生混凝土包括如下组分，以质量份数计：水泥360～380份，砂580～620份，天然粗骨料580～620份，再生粗骨料580～620份，PET纤维7～28份，水150～170份，减水剂2～3份，所述再生粗骨料为粒径介于4.75 mm～26.5 mm的废弃混凝土粗颗粒，所制得混凝土为再生骨料替代率为50%的再生混凝土。本发明采用废弃混凝土破碎而成的再生混凝土作为天然砂石的替代品，可有效解决天然砂石短缺问题；再生塑料纤维作为常见钢纤维、玄武岩纤维及合成大类纤维的替代品，可有效缓解矿物纤维资源短缺及白色污染日渐严重等问题。本发明制备得到的纤维混凝土较普通再生混凝土具有初裂强度高、破坏形式为延性破坏等优点。
Regenerated PET fiber reinforced recycled concrete and preparation method thereof
一种再生PET纤维增强再生混凝土及制备方法
WANG MINGYUAN (author) / LI KAIYANG (author) / WANG YANG (author) / LU QUN (author) / ZHAO LIUYUAN (author) / LIANG YUNXIAO (author)
2022-12-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Fiber-reinforced regenerated rubber foam concrete and preparation method thereof
| European Patent Office | 2024
Fiber-reinforced regenerated ultra-high performance concrete and preparation method thereof
| European Patent Office | 2024
Regenerated plastic fiber regenerated self-compacting concrete and preparation method thereof
| European Patent Office | 2022
Regenerated fan blade fiber reinforced concrete decorative product and preparation method thereof
| European Patent Office | 2023
Composite enzyme treated bamboo fiber regenerated reinforced concrete and preparation method thereof
| European Patent Office | 2024