1 NON-LINEAR ELASTIC BEHAVIOR OF BITUMEN EMULSION STABILIZED 1 MATERIALS WITH C&D WASTE AGGREGATES 2 B. Gómez-Meijide a,* , I. Pérez a 3 a Universidade da Coruña. E.T.S.I. Caminos, Canales y Puertos, Campus de Elviña s/n, 15071. A Coruña, Spain 4 *Corresponding author. Tel.: +34-981167000. Fax: +34-981167170 5 E-mail addresses: [email protected] (B. Gómez Meijide), [email protected] (I. Pérez) 6 7 Abstract 8 In this paper, the non-linear elastic behavior of bitumen stabilized materials with emulsion (BSM- 9 E) 1 with recycled aggregates from construction and demolition (C&D) 2 waste was analyzed by 10 means of dynamic triaxial tests. Different predicting models were fitted to the experimental 11 resilient modulus; the Mohr-Coulomb envelopes were obtained, and the Huurman’s model was 12 fitted to experimental creep data to provide the necessary parameters for eventual numerical 13 simulations. The results show that mixes with C&D aggregates are more flexible, have better 14 resistance to permanent deformation and similar failure stress than mixes with natural aggregates. 15 However, they needed a higher water and bitumen content. 16 Keywords 17 Bitumen stabilized materials with emulsion; construction and demolition waste; non-linear elastic 18 behavior; resilient modulus; Mohr-Coulomb envelope; permanent deformation 19 Highlights 20 Non-linear elastic behavior of BSM-E with CDWA 3 was studied 21 Dynamic triaxial tests were conducted, treating BSM-E as granular materials 22 Resilient and creep models were fitted to the experimental results 23 Mohr-Coulomb envelopes were obtained 24 BSM-E with CDWA showed good properties but a need for greater bitumen content 25 1 BSM-E: bitumen stabilized materials with emulsion 2 C&D: Construction and Demolition 3 CDWA: Construction and Demolition Waste Aggregates 4 HMA: Hot Mix Asphalt 5 NA: Natural Aggregates
NON-LINEAR ELASTIC BEHAVIOR OF BITUMEN EMULSION STABILIZED MATERIALS WITH C&D WASTE AGGREGATES
May 05, 2023
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