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A platform for research: civil engineering, architecture and urbanism
Freeze-thaw behaviour of basalt fibre reinforced recycled aggregate concrete filled CFRP tube specimens
https://orcid.org/0000-0002-0677-968X
https://orcid.org/0000-0002-0007-4144
https://orcid.org/0000-0002-6129-0668
Highlights Freeze-thaw behaviour of basalt fibre reinforced RAC filled CFRP tube column under freeze–thaw were studied. The influence of the freeze–thaw cycles on the residual mechanical properties of constrained BFRC columns. The basalt fibre and CFRP tube could be used in RAC to upgrade the frost resistance of the composite structures.
Abstract This paper is focused on the behaviour of basalt fibre reinforced recycled aggregate concrete (BFRC) short specimens confined by carbon fibre reinforced polymer (CFRP) tubes under freeze–thaw conditions. The main parameters investigated are the replacement rate of recycled coarse aggregate (RCA), the number of freeze–thaw cycle (FTC), the related temperature range, and the shape of short specimen section. The failure mode, dynamic elastic modulus, ultimate bearing capacity and the load–strain response of the specimens are studied. The results show that the failure mode and the load–strain response of CFRP tube confined recycled aggregate concrete (RAC) specimen have insignificant change due to FTCs. However, with the increase of the FTCs, the bearing capacity of the specimen decreases, and the specimen with square cross-section is much more sensitive than that of the circular cross-section counterpart. The smaller the range of freeze–thaw temperature changed, the smaller loss of the dynamic modulus and the smaller decrease range of the ultimate bearing capacity after FTCs.
Freeze-thaw behaviour of basalt fibre reinforced recycled aggregate concrete filled CFRP tube specimens
https://orcid.org/0000-0002-0677-968X
https://orcid.org/0000-0002-0007-4144
https://orcid.org/0000-0002-6129-0668
Highlights Freeze-thaw behaviour of basalt fibre reinforced RAC filled CFRP tube column under freeze–thaw were studied. The influence of the freeze–thaw cycles on the residual mechanical properties of constrained BFRC columns. The basalt fibre and CFRP tube could be used in RAC to upgrade the frost resistance of the composite structures.
Abstract This paper is focused on the behaviour of basalt fibre reinforced recycled aggregate concrete (BFRC) short specimens confined by carbon fibre reinforced polymer (CFRP) tubes under freeze–thaw conditions. The main parameters investigated are the replacement rate of recycled coarse aggregate (RCA), the number of freeze–thaw cycle (FTC), the related temperature range, and the shape of short specimen section. The failure mode, dynamic elastic modulus, ultimate bearing capacity and the load–strain response of the specimens are studied. The results show that the failure mode and the load–strain response of CFRP tube confined recycled aggregate concrete (RAC) specimen have insignificant change due to FTCs. However, with the increase of the FTCs, the bearing capacity of the specimen decreases, and the specimen with square cross-section is much more sensitive than that of the circular cross-section counterpart. The smaller the range of freeze–thaw temperature changed, the smaller loss of the dynamic modulus and the smaller decrease range of the ultimate bearing capacity after FTCs.
Freeze-thaw behaviour of basalt fibre reinforced recycled aggregate concrete filled CFRP tube specimens
https://orcid.org/0000-0002-0677-968X
https://orcid.org/0000-0002-0007-4144
https://orcid.org/0000-0002-6129-0668
Highlights Freeze-thaw behaviour of basalt fibre reinforced RAC filled CFRP tube column under freeze–thaw were studied. The influence of the freeze–thaw cycles on the residual mechanical properties of constrained BFRC columns. The basalt fibre and CFRP tube could be used in RAC to upgrade the frost resistance of the composite structures.
Abstract This paper is focused on the behaviour of basalt fibre reinforced recycled aggregate concrete (BFRC) short specimens confined by carbon fibre reinforced polymer (CFRP) tubes under freeze–thaw conditions. The main parameters investigated are the replacement rate of recycled coarse aggregate (RCA), the number of freeze–thaw cycle (FTC), the related temperature range, and the shape of short specimen section. The failure mode, dynamic elastic modulus, ultimate bearing capacity and the load–strain response of the specimens are studied. The results show that the failure mode and the load–strain response of CFRP tube confined recycled aggregate concrete (RAC) specimen have insignificant change due to FTCs. However, with the increase of the FTCs, the bearing capacity of the specimen decreases, and the specimen with square cross-section is much more sensitive than that of the circular cross-section counterpart. The smaller the range of freeze–thaw temperature changed, the smaller loss of the dynamic modulus and the smaller decrease range of the ultimate bearing capacity after FTCs.
Freeze-thaw behaviour of basalt fibre reinforced recycled aggregate concrete filled CFRP tube specimens
Dong, J.F. (author) / Xu, Y. (author) / Guan, Z.W. (author) / Wang, Q.Y. (author)
Engineering Structures ; 273
2022-10-05
Article (Journal)
Electronic Resource
English
Behavior of CFRP-Confined Basalt Fibre Reinforced Recycled Aggregate Concrete
| Springer Verlag | 2022
Structural behaviour of recycled aggregate concrete filled steel tube columns strengthened by CFRP
| Online Contents | 2013