Concrete manufactured with crushed asphalt as partial replacement of natural aggregates
Keywords:Concrete, Waste treatment, Aggregate, Workability, Compressive strength
The paper focuses on the reuse of crushed asphalt (GA) as a partial replacement (up to 20%) of natural aggregates for concrete manufacture. Addition of GA aggregates produced a positive effect on workability loss. The GA mixes, however, showed a significant tendency to bleed and segregate at the highest replacement percentage applied. GA led to a decrease of compressive strength in concrete (with respect to that of the reference concrete) up to 50% due to the weakness of the cement paste / recycled aggregate interface. To compensate for this negative effect, a reduction of w/c for the GA concretes was necessary. A decrease of w/c allowed the GA concretes to show drying shrinkage values substantially similar to those of reference concrete with the same cement factor. The experimental results confirmed the possibility of partial substitution (max. 15%) of natural aggregates with crushed asphalt for making concrete.
Silva, R.V.; Brito, J.; Dhir, R.K. (2014) Properties and composition of recycled aggregates from construction and demolition wastes suitable for concrete production. Constr Build Mater, 65, 201-217. https://doi.org/10.1016/j.conbuildmat.2014.04.117
Coppola, L.; Cerulli, T.; Salvioni, D. (2005) Sustainable Development and Durability of Self-Compacting Concretes. Proceedings of 11th International Conference on Fracture 2005. ICF11, 3, 2226-2241.
Ramachandran, V.S. (1981) Waste and By-products as Concrete Aggregates. Canadian Building Digest. CBD-215, National Research Council, Ottawa, Canada. http://www.irc.nrc-cnrc.gc.ca
Blengini, G.A.; Garbarino, E.; Solar, S.; Shields, D.J.; Hamor, T.; Vinai, R.; Agioutantis, Z. (2012) Life Cycle Assessment guidelines for the sustainable production and recycling of aggregates: the Sustainable Aggregates Resource Management project (SARMa). J Clean Prod, 27, 177-181. https://doi.org/10.1016/j.jclepro.2012.01.020
Coppola, L.; Lorenzi, S.; Marcassoli, P.; Marchese, G. (2007) Concrete Production by Using Cast Iron Industry By-Products. Industria Italiana del Cemento. 836, 748-756.
Coppola, L.; Lorenzi, S.; Buoso, A. (2010) Electric arc furnace granulated slag as a partial replacement of natural aggregates for concrete production. Second International Conference on Sustainable Construction Materials and Technologies. Ancona, Italy. http://www.claisse.info/Proceedings.htm
Gimenez, M.; Bouillon, C.; Ferey, F.; Sorrentino, F. (2005) Zero Waste. World Cement 09.
Kara, P. (2013) The next generation ecological self compacting concrete with glass waste powder as a cement component in concrete and recycled concrete aggregates, Proceedings of 3rd Workshop on The new boundaries of structural concrete, University of Bergamo ACI Italy Chapter, Bergamo, Italy, October 3-4, 2013, 21-30.
Courard, L.; FrÈdÈric, M.; Delhez, P. (2010) Use of concrete road recycled aggregates for roller compacted concrete, Constr Build Mater, 24, 390-395. https://doi.org/10.1016/j.conbuildmat.2009.08.040
Pasandin, A.R.; Perez, I. (2015) Overview of bituminous mixtures made with recycled concrete Aggregates. Constr Build Mater, 74, 151-161. https://doi.org/10.1016/j.conbuildmat.2014.10.035
Modarres, A.; Hosseini, Z. (2014) Mechanical properties of roller compacted concrete containing rice husk ash with original and recycled asphalt pavement material. Mater Design, 64, 227-236. https://doi.org/10.1016/j.matdes.2014.07.072
EAPA (2011) Asphalt in Figures 2011. European Asphalt Pavement Association.
Coppola, L. (2001) Rheology and Mix Proportioning of Self-Compacting Concretes. Industria Italiana del Cemento. 762, 152-163.
Zhang, Y.; Collepardi, M.; Coppola, L.; Guan, W.L.; Zaffaroni, P. (2003) Optimization of the High-Strength Superplasticized Concrete of the Three-Gorge Dam in China. Industria Italiana del Cemento, 783, 58-69.
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