A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Flexural bond behavior of reinforced recycled aggregate concrete
https://orcid.org/0000-0003-3902-351X
https://orcid.org/0000-0003-4862-2565
Highlights Beam test were used to investigate the flexural RAC-reinforcement bond behaviour. Water-binder ratio, recycled aggregate replacement percentage, bar surface shape, and anchorage length of reinforcements are considered. The load to slip curves, bond strength, and the bond efficiency coefficient are discussed. The constitutive relationship between reinforcements and RAC is given.
Abstract Replacing natural aggregate concrete with recycled aggregate concrete (RAC) can effectively solve aggregate shortage problems. However, application of recycled aggregate in engineering structures requires analysis of the interaction between steel bars and RAC. The bond behavior under flexure is similar to the actual state of stress in structural members. 15 beam specimens were designed and tested to investigate the RAC-reinforcement bond behavior and the constitutive relationship at the interface between them. Test parameters include water-binder ratio, recycled coarse aggregate (RCA) replacement percentage, recycled fine aggregate (RFA) replacement percentage, bar surface shape, and anchorage length of reinforcements. The influence of the above variables on the load to slip curves, bond strength, and the bond efficiency coefficient is discussed. Bond strength between reinforcements and concrete decreases with increasing RCA replacement percentage, however, the rate of decrease is reduced for specimens with low water-binder ratio. The addition of RFA significantly degrades bond behavior. The bond strength between deformed reinforcements and RAC is approximately 2 times of that of plain reinforcements. With increasing anchorage length, the interface bond behavior between the reinforcements and RAC decreases.
Flexural bond behavior of reinforced recycled aggregate concrete
https://orcid.org/0000-0003-3902-351X
https://orcid.org/0000-0003-4862-2565
Highlights Beam test were used to investigate the flexural RAC-reinforcement bond behaviour. Water-binder ratio, recycled aggregate replacement percentage, bar surface shape, and anchorage length of reinforcements are considered. The load to slip curves, bond strength, and the bond efficiency coefficient are discussed. The constitutive relationship between reinforcements and RAC is given.
Abstract Replacing natural aggregate concrete with recycled aggregate concrete (RAC) can effectively solve aggregate shortage problems. However, application of recycled aggregate in engineering structures requires analysis of the interaction between steel bars and RAC. The bond behavior under flexure is similar to the actual state of stress in structural members. 15 beam specimens were designed and tested to investigate the RAC-reinforcement bond behavior and the constitutive relationship at the interface between them. Test parameters include water-binder ratio, recycled coarse aggregate (RCA) replacement percentage, recycled fine aggregate (RFA) replacement percentage, bar surface shape, and anchorage length of reinforcements. The influence of the above variables on the load to slip curves, bond strength, and the bond efficiency coefficient is discussed. Bond strength between reinforcements and concrete decreases with increasing RCA replacement percentage, however, the rate of decrease is reduced for specimens with low water-binder ratio. The addition of RFA significantly degrades bond behavior. The bond strength between deformed reinforcements and RAC is approximately 2 times of that of plain reinforcements. With increasing anchorage length, the interface bond behavior between the reinforcements and RAC decreases.
Flexural bond behavior of reinforced recycled aggregate concrete
https://orcid.org/0000-0003-3902-351X
https://orcid.org/0000-0003-4862-2565
Highlights Beam test were used to investigate the flexural RAC-reinforcement bond behaviour. Water-binder ratio, recycled aggregate replacement percentage, bar surface shape, and anchorage length of reinforcements are considered. The load to slip curves, bond strength, and the bond efficiency coefficient are discussed. The constitutive relationship between reinforcements and RAC is given.
Abstract Replacing natural aggregate concrete with recycled aggregate concrete (RAC) can effectively solve aggregate shortage problems. However, application of recycled aggregate in engineering structures requires analysis of the interaction between steel bars and RAC. The bond behavior under flexure is similar to the actual state of stress in structural members. 15 beam specimens were designed and tested to investigate the RAC-reinforcement bond behavior and the constitutive relationship at the interface between them. Test parameters include water-binder ratio, recycled coarse aggregate (RCA) replacement percentage, recycled fine aggregate (RFA) replacement percentage, bar surface shape, and anchorage length of reinforcements. The influence of the above variables on the load to slip curves, bond strength, and the bond efficiency coefficient is discussed. Bond strength between reinforcements and concrete decreases with increasing RCA replacement percentage, however, the rate of decrease is reduced for specimens with low water-binder ratio. The addition of RFA significantly degrades bond behavior. The bond strength between deformed reinforcements and RAC is approximately 2 times of that of plain reinforcements. With increasing anchorage length, the interface bond behavior between the reinforcements and RAC decreases.
Flexural bond behavior of reinforced recycled aggregate concrete
Dong, Hongying (author) / Song, Yu (author) / Cao, Wanlin (author) / Sun, Wenjuan (author) / Zhang, Jianwei (author)
Construction and Building Materials ; 213 ; 514-527
2019-03-18
14 pages
Article (Journal)
Electronic Resource
English
Flexural performance of reinforced recycled aggregate concrete beams
| Online Contents | 2012
Flexural behavior of reinforced recycled aggregate concrete beams under short-term loading
| Online Contents | 2012
Flexural behavior of reinforced recycled aggregate concrete beams under short-term loading
| Springer Verlag | 2012
Flexural behavior of reinforced recycled aggregate concrete beams under short-term loading
| Online Contents | 2012