Study of the Mechanical Performance of a Recycled Aggregate Concrete with Admixture Addition

Larbi Belagraa, Miloud Beddar

Department of Civil Engineering, M’Sila University, M’Sila, Algeria.
Laboratory of Materials and Electronic Systems (LMSE), Faculty of Sciences and Technology, Bordj Bou Arreridj University, Bordj Bou Arreridj, Algeria.

DOI: 10.4236/ojce.2013.32011                

Abstract

The needs of the construction sector are still increasing for concrete. However the shortage of natural resources of aggregate could be a problem for the concrete industry. In addition, the negative impact on the environment is due to the construction demolition; where disposal wastes create a severe ecological and environmental hazard. In the last decade, a major interest has been developed for the reuse of recycled aggregates that present more than 70% of the concrete volume. The reused products should fulfill the requirements of lower cost and better quality, in order to establish its role in the concrete. The aim of this study is to assess the effect of the local admixtures on the mechanical behavior of recycled aggregate concrete (RAC). Physical and mechanical properties of RAC were investigated including density, compressive and flexural strength. The non-destructive test methods (NDT: pulse-velocity and rebound hammer) were used to determine the concrete strength. The results obtained were compared with crushed aggregate concrete (CAC) using the normal compressive testing machine test method. Thus, the convenience of indirect tests in the case of a recycled aggregate concrete were demonstrated.

Keywords

Recycled Concrete Aggregate; Demolition Waste; Non-Destructive Tests; Mechanical Strength; Admixture

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	T. C. Hansen, “Recycling of Demolished Concrete and Masonry,” 2nd Edition, Chapman and Hall, London, 1996.
[2]	RILEM Recommendation, “121-DRG Guidance for Demolition and Reuse of Concrete and Masonry, Specifications for Concrete with Recycled Aggregates,” Materials and Structures, Vol. 27, 1994, pp. 557-559.
[3]	ACI Committee, “Removal and Reuse of Hardened Concrete,” ACI Material Journal, Vol. 3, No. 99, 2002, pp. 250-300.
[4]	K. Rahal, “Mechanical Properties of Concrete with Recycled Coarse Aggregate,” Building Environment, Vol. 42, No. 1, 2007, pp.407-415. doi:10.1016/j.buildenv.2005.07.033
[5]	M. C. Limbachiya, E. Marrocchino and A. Koulouris, “Chemical-Mineralogical Characterisation of Coarse Re cycled Concrete Aggregate,” Waste Management, Vol. 201, 2007, pp. 8-27.
[6]	V. W. Y. Tam, K. Wang and C. M. Tam, “Assessing Relationships among Properties of Demolished Concrete, Recycled Aggregate and Recycled Aggregate Concrete Using Regression Analysis,” Journal of Hazardous Materials, Vol. 152, No. 2, 2008, pp.703-714. doi:10.1016/j.jhazmat.2007.07.061
[7]	A. K. Padmini, K. Ramamurthy and M. S. Mathews, “Influence of Parent Concrete on the Properties of Recycled Aggregate Concrete,” Construction and Building Materials, Vol. 23, No. 2, 2009, pp. 829-836. doi:10.1016/j.conbuildmat.2008.03.006
[8]	S. W. Tabsh and A. S. Abdelfatah, “Influence of Recycled Concrete Aggregates on Strength Properties of Concrete,” Construction and Building Materials, Vol. 23, 2009, pp. 1163-1167.
[9]	M. L. Berndt, “Properties of Sustainable Concrete Containing Fly Ash, Slag and Recycled Concrete Aggregate,” Construction and Building Materials, Vol. 23, 2009, pp. 2606-2613.
[10]	T. H. Bungey, “Testing of Concrete Structures,” Surrey University Press, 1982.
[11]	NA EN 12350-2, “Slump Test (Abrams Cone),” 2009.
[12]	NA EN 933-1, “Tests for Geometrical Properties of Aggregates—Determination of Particle Size Distribution—Sieving Method, (2000) and NA EN 933-2 (1999), Particle Size Distribution.”
[13]	NA EN 1097-6, “Tests for Mechanical and Physical Properties of Aggregates, Determination of Particle Density and Water Absorption,” 2000.
[14]	NA EN 197-1, “Test for cements, specifications.”
[15]	NA EN 934-2, “Admixtures for Concrete and Mortars, Definitions, Specifications for Use,” 2001.
[16]	G. Dreux et J. Festa, “Nouveau Guide du Béton, ” Edition Eyrolles, 1995.
[17]	NA EN 12390-3, “Testing Hardened Concrete. Part 3: Compressive Strength of Test Specimens,” 2003.
[18]	NA EN 12398-6, “Testing Hardened Concrete, Rebound Hammer,” 2003.
[19]	NA EN 13296-6, “Testing of Concrete, Ultrasonic Strength at 28 Days,” 2003.
[20]	J. M. Khatib, “Properties of Concrete Incorporating Fine Recycled Aggregate,” Cement and Concrete Research, Vol. 35, No. 4, 2005, pp. 763-769. doi:10.1016/j.cemconres.2004.06.017