A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bond performance of deformed steel rebars in HSC incorporating industrially produced recycled concrete aggregate
https://orcid.org/http://orcid.org/0000-0002-7333-0321
This paper presents an experimental study on the local bond behaviour of deformed steel rebars in high-strength concrete (HSC) incorporating high-quality recycled concrete aggregate (RCA) produced from a recycling plant in Flanders, Belgium. To examine the influence of the coarse RCA on the local bond behaviour between the rebars and concrete, a total of 5 concrete mixtures (target strength class C50/60) are prepared, in which the replacement percentage of the coarse RCA to the natural aggregate is 0, 10, 20, 50 and 100%, respectively. Deformation controlled pull-out tests with relatively short embedded length (3 times the diameter) of the steel rebars are carried out to investigate the local bond-slip behaviour between the steel rebars and HSC. The test results reveal that the incorporation of the RCA does not have a significant effect on the bond performance between the rebars and concrete. Based on the test data, a new model for predicting the maximum bond stress is proposed. The analytical relationship in fib Model Code 2010 generally agrees well with the measured bond-slip curve, irrespective of the RCA content in the concrete, provided that the measured maximum bond stress is used. A more accurate description of the bond-slip behaviour up to the relative slip of 1.0 mm can be achieved by adjusting the α-value in the equation in fib Model Code 2010.
Bond performance of deformed steel rebars in HSC incorporating industrially produced recycled concrete aggregate
https://orcid.org/http://orcid.org/0000-0002-7333-0321
This paper presents an experimental study on the local bond behaviour of deformed steel rebars in high-strength concrete (HSC) incorporating high-quality recycled concrete aggregate (RCA) produced from a recycling plant in Flanders, Belgium. To examine the influence of the coarse RCA on the local bond behaviour between the rebars and concrete, a total of 5 concrete mixtures (target strength class C50/60) are prepared, in which the replacement percentage of the coarse RCA to the natural aggregate is 0, 10, 20, 50 and 100%, respectively. Deformation controlled pull-out tests with relatively short embedded length (3 times the diameter) of the steel rebars are carried out to investigate the local bond-slip behaviour between the steel rebars and HSC. The test results reveal that the incorporation of the RCA does not have a significant effect on the bond performance between the rebars and concrete. Based on the test data, a new model for predicting the maximum bond stress is proposed. The analytical relationship in fib Model Code 2010 generally agrees well with the measured bond-slip curve, irrespective of the RCA content in the concrete, provided that the measured maximum bond stress is used. A more accurate description of the bond-slip behaviour up to the relative slip of 1.0 mm can be achieved by adjusting the α-value in the equation in fib Model Code 2010.
Bond performance of deformed steel rebars in HSC incorporating industrially produced recycled concrete aggregate
https://orcid.org/http://orcid.org/0000-0002-7333-0321
This paper presents an experimental study on the local bond behaviour of deformed steel rebars in high-strength concrete (HSC) incorporating high-quality recycled concrete aggregate (RCA) produced from a recycling plant in Flanders, Belgium. To examine the influence of the coarse RCA on the local bond behaviour between the rebars and concrete, a total of 5 concrete mixtures (target strength class C50/60) are prepared, in which the replacement percentage of the coarse RCA to the natural aggregate is 0, 10, 20, 50 and 100%, respectively. Deformation controlled pull-out tests with relatively short embedded length (3 times the diameter) of the steel rebars are carried out to investigate the local bond-slip behaviour between the steel rebars and HSC. The test results reveal that the incorporation of the RCA does not have a significant effect on the bond performance between the rebars and concrete. Based on the test data, a new model for predicting the maximum bond stress is proposed. The analytical relationship in fib Model Code 2010 generally agrees well with the measured bond-slip curve, irrespective of the RCA content in the concrete, provided that the measured maximum bond stress is used. A more accurate description of the bond-slip behaviour up to the relative slip of 1.0 mm can be achieved by adjusting the α-value in the equation in fib Model Code 2010.
Bond performance of deformed steel rebars in HSC incorporating industrially produced recycled concrete aggregate
Mater Struct
Sierens, Zeger (author) / Cai, Jingming (author) / Van Steen, Charlotte (author) / Verstrynge, Els (author) / Li, Jiabin (author)
2021-02-01
Article (Journal)
Electronic Resource
English
Recycled concrete aggregate (RCA) , Coarse fraction , High-strength concrete (HSC) , Local bond-slip , Pull-out tests , Maximum bond stress Engineering , Solid Mechanics , Materials Science, general , Theoretical and Applied Mechanics , Manufacturing, Machines, Tools, Processes , Civil Engineering , Building Materials
Bond behaviour between recycled aggregate concrete and steel rebars
| Online Contents | 2007
Bond behaviour between recycled aggregate concrete and steel rebars
| British Library Online Contents | 2007
Bond behaviour between recycled aggregate concrete and steel rebars
| Elsevier | 2005
Bond Behaviour between Recycled Aggregate Concrete and Corroded Steel Rebars
| British Library Conference Proceedings | 2012