Study of concretes properties based on pre-saturated recycled aggregates

Tourkia GUERZOU, Abdelkader MEBROUKI, João CASTRO-GOMES

Abstract


The aim of this study was concretes waste recovery by replacing natural aggregates (NA) by recycled aggregates (RA) at rates of 0%, 50% and 100%. Recycled  aggregates  coming from construction and demolition waste (CDW) present a low  quality  compared  to  natural aggregates,  the  water  absorption being their  main  drawback.  Quantities of water absorbed and their variations in times were measured according to the European standard (EN 1097-6). Adding absorbed water during mixing have caused concretes segregations and an excess volume of water was observed at the surface of the concrete. The added water was not totally absorbed by aggregates. The pre-saturation of aggregates 24 hours before mixing and introducing them as a component in concrete was the best method. The initially saturated aggregates did not consume concretes mixture water. Workability by slump test and mechanical strengths developed with pre-saturated aggregates (100 % RA) and (50% RA - 50% NA) were measured on concretes, and then were compared to those of the reference concretes made with 100 % of natural aggregates.

Keywords


Ordinary concrete; Recycled aggregates; Pre-saturation; Compressive strengths

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References


- L. Berredjem, Recycling demolished concrete as solution for sustainable development. PhD Thesis, University of Annaba, Algeria, 2009.

- L. Berredjem, N. Aribi, L. Molez, Contribution to the study of sustainability indicators for concretes based on recycled aggregates. In: Proceedings of the 33rd meeting of the AUGC, Anglet, 2015.

- N.D. Oikonomou, Recycled concrete aggregates. Cement Concrete Comp. 27(2) (2005) 315-318. doi:10.1016/j.cemconcomp.2004.02.020

- T.H. Douara, Physical and chemical characteristics of recycled aggregates and natural aggregates, In: Proceedings of SBEIDCO, Oran, 2009.

- A. Grondin, Valorisation des granulats recycles de béton : Etude des caractéristiques physiques et mécaniques des Bétons de granulats recycles de béton, PhD Thesis, INSA de Strasbourg, France, 2011.

- A.K. Padmini, K. Ramamurthy, M.S. Mathews, Influence of parent concrete on the properties of recycled aggregate concrete. Constr. Build. Mater. 23(2) (2009) 829-836. doi:10.1016/j.conbuildmat.2008.03.006

- H. Meftah, N. Arabi, Recycled aggregates moistened behaviours of fresh and hardened concrete. In: Proceedings of the 29th meeting of the AUGC, Tlemcen, Algeria, 2011.

- L. Butler, J.S west and S. L. Tighe, The effect of recycled concrete aggregate properties on the bond strength between RCA concrete and steel reinforcement. Cement Concrete Res. 41(10) (2011) 1037-1049. doi:10.1016/j.cemconres.2011.06.004

- M. Chakradhara Rao, S. K. Bhattacharyya, S.V. Barai, Influence of field recycled coarse aggregate on properties of concrete. Mater. Struct. 44(1) (2011) 205-220. doi:10.1617/s11527-010-9620-x

- G. Fathifazl, A. Abbas, A. G. Razaqpur, O.B. Isgor, B. Fournier, S. Foo, New mixture proportioning method for concrete made with coarse recycled concrete aggregate. J. Mater. Civil Eng. 21(10) (2009) 601-611. doi:10.1061/(asce)0899-1561(2009)21:10(601)

- S.M. Levy, P. Helene, Durability of recycled aggregates concrete: a safe way to sustainable development. Cement Concrete Res. 34(11) (2004) 1975-1980. doi:10.1016/j.cemconres.2004.02.009

- M. Malešev, V. Radonjanin, S. Marinković, Recycled concrete as aggregate for structural concrete production. Sustainability-Basel 2(5) (2010) 1204-1225. doi: 0.3390/su2051204

- A. K. Padmini, K. Ramamurthy, M.S. Mathews, Influence of parent concrete on the properties of recycled aggregate concrete. Constr. Build. Mater. 23(2) (2009) 829-836. doi:10.1016/j.conbuildmat.2008.03.006

- K.K. Sagoe-Crentsil, T. Brown, A.H. Taylor, Performance of concrete made with commercially produced coarse recycled concrete aggregate. Cement Concrete Res. 31(5) (2001) 707-712. doi:10.1016/s0008-8846(00)00476-2

- V.W.Y. Tam, C.M. Tam, Diversifying two-stage mixing approach (TSMA) for recycled aggregate concrete: TSMAS and TSMASC. Constr. Build. Mater. 22 (10) (2008) 2068-2077 doi:10.1016/j.conbuildmat.2007.07.024

- T.C. Hansen, Recycled aggregates and recycled aggregate concrete second state-of-the-art report developments1945–1985. Mater. Struct. 19(3) (1986) 201-246. doi:10.1007/bf02472036

- W. George, E. Ghorbel, Eurocode 2: application to recycled gravel concretes. In: Proceedings of the 31st meeting of the AUGC, Cachan, 2013.

- M.S. de Juan, P.A. Gutiérrez, Study on the influence of attached mortar content on the properties of recycled concrete aggregate. Constr. Build. Mater. 23(2) (2009) 872-877. doi:10.1016/j.conbuildmat.2008.04.012

- M. Etxeberria, E. Vazquez, A. Mari, M. Barra, Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete. Cement Concrete Res. 37(5) (2007) 735-742. doi:10.1016/j.cemconres.2007.02.002

- V.W.Y. Tam, K. Wang, C.M. Tam, Assessing relationships among properties of demolished concrete, recycled aggregate and recycled aggregate concrete using regression analysis. J. Hazard. Mater. 152(2) (2008) 703-714. doi:10.1016/j.jhazmat.2007.07.061

- V.W.Y. Tam, X.F. Gao, C.M. Tam, Micro-structural analysis of recycled aggregate concrete produced from two-stage mixing approach. Cement Concrete Res. 35(6) (2005) 1195-1203. doi:10.1016/j.cemconres.2004.10.025

- V. Spaeth, A. Djerbi Tegguer, Polymer based treatments applied on recycled concrete aggregates. Adv. Mater. Res. 687 (2013) 514-519. doi:10.4028/www.scientific.net/amr.687.514

- A. Djerbi Tegguer, Determining the water absorption of recycled aggregates utilizing hydrostatic weighing approach. Constr. Build. Mater. 27(1) (2012) 112–116. doi:10.1016/j.conbuildmat.2011.08.018

- French Standard EN 1097-6, Tests for determining the mechanical and physical properties of aggregates - Part 6: Determination of the true density and the coefficient of water absorption. AFNOR, 1996.

- L. Ferreira, J. de Brito, M. Barra, Influence of the pre-saturation of recycled coarse concrete aggregates on concrete properties. Mag. Concrete Res. 63(8) (2011) 617-627. doi:10.1680/macr.2011.63.8.617

- M. Salgues, J.C. Souche, P. Devillers, E. Garcia-Diaz, Influence of initial saturation degree of recycled aggregates on fresh cement paste characteristics: consequences on recycled concrete properties. Eur. J. Environ. Civ. En. 22(9) (2018) 1146-1160. doi:10.1080/19648189.2016.1245630


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ISSN 2170-127X

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