title: Recycled lightweight concrete made from footwear industry waste and CDW.
abstract: In this paper two types of recycled aggregate, originated from construction and demolition waste (CDW) and ethylene vinyl acetate (EVA) waste, were used in the production of concrete. The EVA waste results from cutting off the EVA expanded sheets used to produce insoles and innersoles of shoes in the footwear industry. The goal of this study was to evaluate the influence of the use of these recycled aggregates as replacements of the natural coarse aggregate, upon density, compressive strength, tensile splitting strength and flexural behavior of recycled concrete. The experimental program was developed with three w/c ratios: 0.49, 0.63 and 0.82. Fifteen mixtures were produced with different aggregate substitution rates (0%, 50% EVA, 50% CDW, 25% CDW-25% EVA and 50% CDW-50% EVA), by volume. The results showed that it is possible to use the EVA waste and CDW to produce lightweight concrete having semi-structural properties.
authors.affiliation: Post-graduate Program of Civil and Environmental Engineering, Department of Technology, State University of Feira de Santana, Av. Transnordestina, S/N - Novo Horizonte, Feira de Santana, Bahia 44036-900, Brazil. lima.prl.uefs@gmail.com
authors.forename: Paulo Roberto Lopes
authors.initials: PR
authors.lastname: Lima
authors.forename: Mônica Batista
authors.initials: MB
authors.lastname: Leite
authors.forename: Ediela Quinteiro Ribeiro
authors.initials: EQ
authors.lastname: Santiago
mesh_terms: D003247:Conservation of Natural Resources; D003252:Construction Materials; D007220:Industrial Waste; D013718:Tensile Strength; D014753:Vinyl Compounds
chemical_list: D007220:Industrial Waste; D014753:Vinyl Compounds; C011566:vinyl acetate