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A platform for research: civil engineering, architecture and urbanism
Freeze-thaw resistant fiber recycled aggregate roller compacted concrete as well as preparation method and application thereof
The invention provides freeze-thaw-resistant fiber recycled aggregate roller compacted concrete and a preparation method thereof, and relates to the technical field of recycled aggregate concrete. The concrete is prepared from the following raw materials in parts by weight: 400-455 parts of rolled recycled coarse aggregate; 140 to 160 parts of cement; 14 to 18 parts of silica fume; 30 to 38 parts of fly ash; 195 to 225 parts of natural aggregate; 50 to 65 parts of water-absorbing sepiolite fiber; 50 to 70 parts of water; 2-4 parts of composite fiber aggregate; 1.25 to 3.6 parts of a composite anti-freezing agent; and 1-1.5 parts of a polycarboxylic acid high-performance water reducing agent. The invention also provides a preparation method of the freeze-thaw resistant fiber recycled aggregate roller compacted concrete. The freeze-thaw-resistant fiber recycled aggregate roller compacted concrete prepared by the invention has the advantages of excellent mechanical properties, good freeze-thaw resistance and the like, the concrete is constructed by replacing a traditional pouring mode with a vibration rolling mode, the recycled aggregate can be recycled to the maximum extent, and the application prospect of the concrete is expanded.
本发明提供一种抗冻融纤维再生骨料碾压混凝土及其制备方法，涉及再生骨料混凝土技术领域。按重量份数计，由以下原料组成：碾压再生粗骨料400‑455份；水泥140‑160份；硅灰14‑18份；粉煤灰30‑38份；天然集料195‑225份；吸水海泡石纤维50‑65份；水50‑70份；复合纤维集料2‑4份；复合防冻剂1.25‑3.6份；聚羧酸高性能减水剂1‑1.5份。本发明还提供了上述抗冻融纤维再生骨料碾压混凝土的制备方法。本发明制得的抗冻融纤维再生骨料碾压混凝土具有力学性能优异、抗冻融性能好等优势，混凝土采用振动碾压的方式替换传统浇筑方式进行施工，能将再生骨料极大化重新利用，拓展了其应用前景。
Freeze-thaw resistant fiber recycled aggregate roller compacted concrete as well as preparation method and application thereof
The invention provides freeze-thaw-resistant fiber recycled aggregate roller compacted concrete and a preparation method thereof, and relates to the technical field of recycled aggregate concrete. The concrete is prepared from the following raw materials in parts by weight: 400-455 parts of rolled recycled coarse aggregate; 140 to 160 parts of cement; 14 to 18 parts of silica fume; 30 to 38 parts of fly ash; 195 to 225 parts of natural aggregate; 50 to 65 parts of water-absorbing sepiolite fiber; 50 to 70 parts of water; 2-4 parts of composite fiber aggregate; 1.25 to 3.6 parts of a composite anti-freezing agent; and 1-1.5 parts of a polycarboxylic acid high-performance water reducing agent. The invention also provides a preparation method of the freeze-thaw resistant fiber recycled aggregate roller compacted concrete. The freeze-thaw-resistant fiber recycled aggregate roller compacted concrete prepared by the invention has the advantages of excellent mechanical properties, good freeze-thaw resistance and the like, the concrete is constructed by replacing a traditional pouring mode with a vibration rolling mode, the recycled aggregate can be recycled to the maximum extent, and the application prospect of the concrete is expanded.
本发明提供一种抗冻融纤维再生骨料碾压混凝土及其制备方法，涉及再生骨料混凝土技术领域。按重量份数计，由以下原料组成：碾压再生粗骨料400‑455份；水泥140‑160份；硅灰14‑18份；粉煤灰30‑38份；天然集料195‑225份；吸水海泡石纤维50‑65份；水50‑70份；复合纤维集料2‑4份；复合防冻剂1.25‑3.6份；聚羧酸高性能减水剂1‑1.5份。本发明还提供了上述抗冻融纤维再生骨料碾压混凝土的制备方法。本发明制得的抗冻融纤维再生骨料碾压混凝土具有力学性能优异、抗冻融性能好等优势，混凝土采用振动碾压的方式替换传统浇筑方式进行施工，能将再生骨料极大化重新利用，拓展了其应用前景。
Freeze-thaw resistant fiber recycled aggregate roller compacted concrete as well as preparation method and application thereof
一种抗冻融纤维再生骨料碾压混凝土及其制备方法与应用
LU YIYAN (author) / CHEN YUXIU (author) / LIU ZHENZHEN (author) / LIU ENMING (author) / LI FAPING (author)
2024-12-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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