Steel-Fibre-Reinforced Self-Compacting Concrete with 100% Recycled Mixed 1 Aggregates Suitable for Structural Applications 2 Ortiz, J.A. (a) ; de la Fuente, A. (b) , Mena Sebastia, F. (b) (*) , Segura, I. (b) , Aguado, A. (b) 3 (a) Department of Construction and Structures. Universidad Autónoma de Aguaascalientes (México) 4 (b) Department of Civil and Environmental Engineering. Universitat Politècnica de Catalunya, UPC Tech 5 (Spain) 6 7 8 * Corresponding author: 9 PhD Civil Engineer 10 Department of Civil and Environmental Engineering 11 Universitat Politécnica de Cataluña 12 C/Jordi Girona Salgado, 1-3, C1-202 13 Barcelona, C.P. 08014 14 Barcelona, Spain 15 Tel. +(34) 93 401 65 30 16 e-mail: [email protected] 17 18 Abstract 19 This research focuses on designing and characterizing steel-fibre-reinforced self-compacting 20 concrete using recycled aggregates (SFR-SCC-RA).Six different concrete dosages have been designed, and 21 two extensive mechanical and physical characterization programs have been conducted. The first 22 program was developed in a concrete production plant to verify the compatibility of the new material 23 with the existing production systems. The second program was developed in a laboratory under 24 controlled temperature and humidity conditions. Although compressive strengths greater than 25 25 N/mm 2 have been reached (which allows the material to be classified as structural), the design in this 26 initial phase is oriented to applications with limited mechanical requirements (e.g., foundations, earth 27 retaining walls and pavements, in which design forces are moderate). 28 29 30 Keywords: A. Fibres; A. Recycling; B. Mechanical properties; B. Residual/internal stress; Self-compacting 31 concrete. 32 33 34 35 36 37 38 39 40 41 42 43 44
Steel-Fibre-Reinforced Self-Compacting Concrete with 100% Recycled Mixed Aggregates Suitable for Structural Applications
May 30, 2023
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