Methodologies to Improve the Mechanical Properties of Struc- tural Concrete with Recycled Aggregates
Main Article Content
Keywords
recycled aggregates, recycled aggregate concrete, mechani- cal properties
Abstract
This paper presents the analysis of results about two methodologies proposed to reduce the differences of mechanical properties presented in recycled concrete made with high percentages of recycled aggregate in respect to a control concrete. Two methodologies were applied to structural concrete with a 40% of recycled aggregates and the results were compared with a control concrete. The first method consisted in increase the amount of cement added in the manufacture of recycled concrete from 2.5% to 10%. The second method consisted of applying an abrasion to the recycled aggregates to decrease the amount of mortar adhered. This method has allowed evaluating the behavior of concrete manufactured with recycled aggregates with different degrees of abrasion. The results show that long-term mechanical properties of the concrete manufactured with both methodologies are similar to control concrete.
PACS: 81.05.Zx
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References
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[17] M. Sanchez de Juan and P. Alaejos Gutierrez, “Study on the influence of attached mortar content on the properties of recycled concrete aggregate,”Contruction and Building Materials, no. 23, pp. 872–877, 2009. 14
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[24] D. Matias, J. de Brito, A. Rosa, and D. Pedro, “Mechanical properties of concrete produced with recycled coarse aggregates Influence of the use ofsuperplasticizers,” Construction and Building Materials, no. 44, pp. 101–109,2013. 19
[25] B. Mas, A. Cladera, T. del Olmo, and F. Pitarch, “Influence of the amount of mixed recycled aggregates on the properties of concrete for non-structural use,” Construction and Building Materials, no. 27, pp. 612–622, 2012. 19
[26] L. Evangelista and J. de Brito, “Mechanical behaviour of concrete made with fine recycled concrete aggregates,” Cement and Concrete Composites, no. 29,pp. 397–401, 2007. 20
[27] T. Watanabe, N. Sayaka, H. Chikaroni, and M. Otsu, “Compressive failure inconcrete of recycled aggregate acoustic emission,” Construction and Building Materials, no. 21, pp. 470–476, 2007. 21
[28] G. C. Lee and H. B. Choi, “Study and interfacial transition zone properties of recycled aggregate by micro-hardness test,” Constructions and Building Materials, no. 40, pp. 455–460, 2013. 23
[29] B. Gonzalez-Fonteboa and F. Martinez-Abella, “Concrete with aggregatesfrom demolition waste and silica fume. Materials and mechanical properties,”Building and Environment, no. 43, pp. 429–437, 2008. 23
[30] A. 318-11, “Building Code Requirements for Structural Conccrete and Commentary,”ACI Committee 318, p. 503, 2011. 23
[2] K. Rahal, “Mechanical properties of concrete with recycled coarse aggregate,”Building and Environment, no. 42–21, pp. 407–415, 2007. 12, 21
[3] V. W. Y. Tam, K. Wang, and T. C. M., “Assessing realtionships amongporperties of demolished concrete, recycled aggregate and recycled aggregateconcrete using regression analysis,” Journal of Hazardous Materials, no. 152–2, pp. 703–714, 2008. 12, 13
[4] A. K. Padmini, K. Ramamurthy, and M. S. Mathews, “Influence of parentconcrete on the properties of recycled aggregate concrete,” Construction andBuilding Materials, no. 23–2, pp. 829–836, 2009. 12
[5] X. Li, “Recycling and reuse of waste concrete in china: Part II StructuralBahaviour of recycled aggregate concrete and engineering applications,” Resources,Conservation and recycling, no. 53–3, pp. 107–112, 2009. 12
[6] V. K. Bairagi, K. Ravande, and V. K. Pareek, “Behaviour of concrete withdifferent proportions of natural and recycled aggregates,” Resources Conservationsand Recycling, no. 9, pp. 109–126, 1993. 12
[7] K. Eguchi, K. Teranishi, A. Nakagome, H. Kishimoto, K. Shinozaki, andM. Narikawa, “Application of Recycled Coarse Aggregate by Mixture toConcrete Construction,” Construction and Building Materials, no. 21, pp.1542–1551, 2007. 12
[8] C. S. Poon, Z. H. Shui, and L. Lam, “Effect of microstructure of ITZ oncompressive strength of concrete prepared with recycled aggregates,” Constructionand Building Materials, no. 18, pp. 461–468, 2004. 13, 19
[9] V. W. Y. Tam, X. F. Gao, and T. C. M., “Microstructural analysis of recicledaggregate concrete produced from two-stage mixing approach,” Cement andConcrete Research, no. 35, pp. 1195–1203, 2005. 13
[10] V. W. Y. Tam, X. F. Gao, T. C. M., and K.M. Ng, “Physio-chemical reactionsin recycled aggregate concrete,” Journal of Hazardous Materials, no. 153, pp.823–828, 2008. 13
[11] M. J. Estefano de Oliveira, C. Silveira de Assis, and A. Wanderley Terni,“Study on Compressed Stress, Water Absorption and Modulus of Elasticity of Produced Concrete Made by Recycled Aggregate,” Interantional RILEMConference on the Use of recycled Materials and Structures, pp. 636–642,2008. 13, 21
[12] W. H. Kwan, M. Ramli, K. J. Kam, and M. Z. Sulieman, “Influence of the amount of recycled coarse aggregate in concrete design and durability properties,”Constructions and Building Materials, no. 26, pp. 565–573, 2012.13, 20
[13] A. cientifico-tecnica del hormigon estructural, “Utilización de arido recicladopara la fabricación de hormigón estructural,” Monografia (ACHE), no. M11,pp. 117–125, 2006. 13, 19
[14] S. Frondistou-Yannas, “Waste concrete as aggregate for new concrete,” ACIJournal Proceedings, no. 74, pp. 373–376, 1977. 14
[15] M. Etxeberria, A. Mari, and E. Vazquez, “Recycled aggregate concrete asstructural material,” Materials and Structures, no. 40, pp. 529–541, 2007. 14
[16] M. Etxeberria, E. Vazquez, A. Mari, and M. Barra, “Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete,” Cement and Concrete Research, no. 37, pp. 735–742,2007. 14
[17] M. Sanchez de Juan and P. Alaejos Gutierrez, “Study on the influence of attached mortar content on the properties of recycled concrete aggregate,”Contruction and Building Materials, no. 23, pp. 872–877, 2009. 14
[18] S. Ismail and M. Ramli, “Engineering properties of treated recycled concreteaggregate (RCA) for structural applications,” Constructions and BuildingMaterials, no. 44, pp. 474–476, 2013. 14
[19] F. Agrela, M. Sanchez de Juan, J. Ayuso, V. L. Geraldes, and J. R. Jimenez,“Limiting properties in the characterization of mixed reclycled aggregates foruse in the manufacture of concrete,” Construction and Building Materials,no. 25, pp. 3950–3955, 2011. 16
[20] M. Barreto, J. de Brito, and A. Santos, “Metodos de evaluacion de las reacciones alcali-silice en hormigones con aridos reciclados,” Revista Ingenieriade Construccion, vol. 24, pp. 141–152, 2009. 16
[21] I. N. d. N. C. NCh148, NCh148Of.68 Cemento - Teminologia, clsificacion y especificaciones generales, 1968. 17
[22] T. C. Hansen, “Recycling of Demolished Concrete Masonry,” Rilem Report, no. 6, p. 316, 1992. 18
[23] S. Manzi, C. Mazzotti, and M. C. Bignozzi, “Short and long-term behaviour of structural concrete with recycled concrete aggregate,” Cement and Concrete Composites, no. 37, pp. 312–318, 2013. 18, 23
[24] D. Matias, J. de Brito, A. Rosa, and D. Pedro, “Mechanical properties of concrete produced with recycled coarse aggregates Influence of the use ofsuperplasticizers,” Construction and Building Materials, no. 44, pp. 101–109,2013. 19
[25] B. Mas, A. Cladera, T. del Olmo, and F. Pitarch, “Influence of the amount of mixed recycled aggregates on the properties of concrete for non-structural use,” Construction and Building Materials, no. 27, pp. 612–622, 2012. 19
[26] L. Evangelista and J. de Brito, “Mechanical behaviour of concrete made with fine recycled concrete aggregates,” Cement and Concrete Composites, no. 29,pp. 397–401, 2007. 20
[27] T. Watanabe, N. Sayaka, H. Chikaroni, and M. Otsu, “Compressive failure inconcrete of recycled aggregate acoustic emission,” Construction and Building Materials, no. 21, pp. 470–476, 2007. 21
[28] G. C. Lee and H. B. Choi, “Study and interfacial transition zone properties of recycled aggregate by micro-hardness test,” Constructions and Building Materials, no. 40, pp. 455–460, 2013. 23
[29] B. Gonzalez-Fonteboa and F. Martinez-Abella, “Concrete with aggregatesfrom demolition waste and silica fume. Materials and mechanical properties,”Building and Environment, no. 43, pp. 429–437, 2008. 23
[30] A. 318-11, “Building Code Requirements for Structural Conccrete and Commentary,”ACI Committee 318, p. 503, 2011. 23