Characterization tests for predicting the mechanical performance of SFRC floors: design considerations
Author(s): |
Paolo Martinelli
Matteo Colombo Albert de la Fuente Sergio Cavalaro Pablo Pujadas Marco di Prisco |
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Medium: | journal article |
Language(s): | English |
Published in: | Materials and Structures, 16 December 2020, n. 1, v. 54 |
DOI: | 10.1617/s11527-020-01598-2 |
Abstract: |
The paper presents an experimental program carried out to check the load bearing capacity of a steel fibre reinforced concrete (SFRC) floor in northern Italy. The extensive mechanical characterization focused on the suitability of 3 non-standardized test methods for quality control and tensile constitutive curve assessment was performed, this consisting of: uniaxial tensile test (UTT), double edge wedge splitting test (DEWST) and double punching test (DPT) to characterize the post-cracking mechanical properties of the material. The joint experimental programme, carried out at the Politecnico di Milano and at the Universitat Politècnica de Catalunya, included the flexural characterization of four shallow beams (1.5 × 0.5 × 0.25 m³) and six standard notched beams (0.55 × 0.15 × 0.15 m³). All the samples were produced from the same batch and with the same SFRC mix which was applied for the floor. After that, 192 cores were drilled from the shallow beams and subjected to either UTTs, DEWSTs or DPTs. The stress level, the scatter and the constitutive curves derived from the non-standardized tests were identified and analysed. The calculated constitutive curves were used to predict the behaviour of the shallow beams. |
Copyright: | © The Author(s) 2020 |
License: | This creative work has been published under the Creative Commons Attribution 4.0 International (CC-BY 4.0) license which allows copying, and redistribution as well as adaptation of the original work provided appropriate credit is given to the original author and the conditions of the license are met. |
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10540914 - Published on:
05/01/2021 - Last updated on:
02/06/2021