A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bond Behaviour of Recycled Aggregate Concrete
Abstract This paper discusses the mechanical properties and bond behaviour of recycled aggregate concrete (RAC). The recycled aggregates used were obtained from crushed concrete cubes of 2–3 years old. The properties of the aggregates were studied and a concrete of characteristic compressive strength of 40 MPa was designed. RAC mixes with 50, 75 and 100% coarse-recycled aggregates, viz. R50, R75 and R100 and 20% fly ash were tested, the properties were compared to natural aggregate concrete with and without fly ash, viz. NAC and NAF. Triple mixing method was adopted for mixing of concrete. The mechanical properties were studied at 56 days and the bond behaviour was investigated by performing rebar pull out test. The mechanical properties of the mixes were found to be almost similar for all mixes, except for elastic modulus which decreased with increase in percentage of recycled aggregates. The bond strength of RAC at a slip of 0.025 and 0.25 mm were up to 25% higher and 27% lower than that of NAC and NAF, respectively. However, the bond strength at failure load was found to be almost similar for all the mixes.
Bond Behaviour of Recycled Aggregate Concrete
Abstract This paper discusses the mechanical properties and bond behaviour of recycled aggregate concrete (RAC). The recycled aggregates used were obtained from crushed concrete cubes of 2–3 years old. The properties of the aggregates were studied and a concrete of characteristic compressive strength of 40 MPa was designed. RAC mixes with 50, 75 and 100% coarse-recycled aggregates, viz. R50, R75 and R100 and 20% fly ash were tested, the properties were compared to natural aggregate concrete with and without fly ash, viz. NAC and NAF. Triple mixing method was adopted for mixing of concrete. The mechanical properties were studied at 56 days and the bond behaviour was investigated by performing rebar pull out test. The mechanical properties of the mixes were found to be almost similar for all mixes, except for elastic modulus which decreased with increase in percentage of recycled aggregates. The bond strength of RAC at a slip of 0.025 and 0.25 mm were up to 25% higher and 27% lower than that of NAC and NAF, respectively. However, the bond strength at failure load was found to be almost similar for all the mixes.
Bond Behaviour of Recycled Aggregate Concrete
Surya, M. (author) / Lakshmy, P. (author) / Rao, V. V. L. K. (author)
2018-08-02
13 pages
Article/Chapter (Book)
Electronic Resource
English
Bond behaviour between recycled aggregate concrete and steel rebars
| Elsevier | 2005
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 Corroded Steel Rebars
| Tema Archive | 2012
Bond behaviour of normal- and high-strength recycled aggregate concrete
| Tema Archive | 2015