Resistance to Chloride Penetration of Recycled Aggregate Concrete Modified Using Treated Coarse Recycled Concrete Aggregate and Fibres

Abstract:

This paper presents a study that aimed to assess the chloride penetration depth of recycled aggregate concrete (RAC) modified by using treated coarse recycled concrete aggregate (RCA), adding polyolefin (PO) or polypropylene (PP) fibre and comparing with normal concrete. The coupling effects of the treated RCA and fibres on the chloride penetration of RAC were analysed after two different curing regimes (i.e. normal and seawater) and tested at different curing ages (i.e. 90, 180 and 300 days). Results showed that the inclusion of treated coarse RCA can reduce porosity, thereby decreasing the chloride penetration of RAC. However, the coupling effects of treated coarse RCA and fibre, especially on the use of PO fibre, can enhance the results.

• Periodical: Materials Science Forum (Volume 991)
• Pages: 101-108
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.991.101
• Online since: May 2020
• Authors: Sallehan Ismail*, Mahyuddin Ramli
• Keywords: Chloride Penetration, Polyolefin Fibre, Polypropylene Fiber, Recycled Aggregate Concrete, Treated Recycled Concrete Aggregate

References

[1] K.Y. Ann, H.Y. Moon, Y.B. Kim, J. Ryou, Durability of recycled aggregate concrete using pozzolanic materials, Waste Management 28(6) (2008) 993-999.

DOI: 10.1016/j.wasman.2007.03.003

[2] M. Gomes, J. de Brito, Structural concrete with incorporation of coarse recycled concrete and ceramic aggregates: durability performance, Materials and Structures 42(5) (2009) 663-675.

DOI: 10.1617/s11527-008-9411-9

[3] G. De Schutter, K. Audenaert, Evaluation of water absorption of concrete as a measure for resistance against carbonation and chloride migration, Materials and Structures/Materiaux et Constructions 37(273) (2004) 591-596.

DOI: 10.1617/14045

[4] L. Evangelista, J. de Brito, Durability performance of concrete made with fine recycled concrete aggregates, Cement and Concrete Composites 32(1) (2010) 9-14.

DOI: 10.1016/j.cemconcomp.2009.09.005

[5] S.C. Kou, C.S. Poon, Properties of concrete prepared with PVA-impregnated recycled concrete aggregates, Cement and Concrete Composites 32(8) (2010) 649-654.

DOI: 10.1016/j.cemconcomp.2010.05.003

[6] G.F. Peng, Q.B. Liu, Z.B. Guo, Q.X. Hou, S.Q. Cao, J.F. Zhang, Mechanical Properties and Permeability of Recycled Aggregate Concrete at Low Water/Binder Ratio, Key Engineering Materials 477 (2011) 16-22.

DOI: 10.4028/www.scientific.net/kem.477.16

[7] Y.A. Villagran-Zaccardi, C.J. Zega, A.A.D. Maio, Chloride Penetration and Binding in Recycled Concrete, Journal of Materials in Civil Engineering 20(6) (2008) 449-455.

DOI: 10.1061/(asce)0899-1561(2008)20:6(449)

[8] S.C. Kou, C.S. Poon, D. Chan, Influence of Fly Ash as Cement Replacement on the Properties of Recycled Aggregate Concrete, Journal of Materials in Civil Engineering 19(9) (2007) 709-717.

DOI: 10.1061/(asce)0899-1561(2007)19:9(709)

[9] S. Ismail, M. Ramli, Mechanical strength and drying shrinkage properties of concrete containing treated coarse recycled concrete aggregates, Construction and Building Materials 68(0) (2014) 726-739.

DOI: 10.1016/j.conbuildmat.2014.06.058

[10] S. Ismail, M. Ramli, Effects of adding fibre on strength and permeability of recycled aggregate concrete containing treated coarse RCA, International Journal of Civil, Architectural, Structural and Construction Engineering 8(8) (2014) 890-896.

[11] BS 1881-124, Testing concrete Part 124: Methods for analysis of hardened concrete, British Standards Institution London (1988).

[12] BS 8110-1, Structural use of concrete, Part 1: Code of practice for design and construction, British Standards Institution, London, (1997).

[13] ACI Committee 222R-01, Protection of metals in concrete against corrosion., American Concrete Institute, Farmington Hills Michigan, (2001).

[14] A.A. Ramezanianpour, M. Esmaeili, S.A. Ghahari, M.H. Najafi, Laboratory study on the effect of polypropylene fiber on durability, and physical and mechanical characteristic of concrete for application in sleepers, Construction and Building Materials 44(0) (2013) 411-418.

DOI: 10.1016/j.conbuildmat.2013.02.076

[15] M. Ramli, W.H. Kwan, N.F. Abas, Application of non-corrosive barchip fibres for high strength concrete enhancements in aggressive environments, Composites Part B: Engineering 53(0) (2013) 134-144.

DOI: 10.1016/j.compositesb.2013.04.012

[16] BS 6349-1, Maritime structures. General criteria, British Standards Institution, London (1984).