Direct assessment of tensile stress-crack opening behavior of Strain Hardening Cementitious Composites (SHCC) Eduardo B. Pereira a,∗ , Gregor Fischer b , Joaquim A. O. Barros a a ISISE - University of Minho, Department of Civil Engineering, School of Engineering, Azurem, 4810-058 Guimaraes, Portugal. b Technical University of Denmark (DTU), Department of Civil Engineering, Brovej, building 118, DK-2800 Kgs. Lyngby, Denmark. Abstract The process of designing Strain Hardening Cementitious Composites (SHCC) is driven by the need to achieve certain performance parameters in tension. These are typically the pseudo-strain hardening behavior and the ability to develop multiple cracks. The assessment of the tensile load-deformation of these materials is therefore of great importance and is frequently carried out by characterizing the material tensile stress-strain behavior. In this paper an alternative approach to evaluate the tensile performance of SHCC is inves- tigated. The behavior of the material in tension is studied at the level of a single crack and the tensile performance is evaluated in terms of the tensile stress-crack opening behavior. The experimental procedure and test setup used are discussed. The derived tensile stress-crack opening behavior is uti- lized to analyze and compare the influence of various composite parameters on the resulting tensile behavior. The deformations occurring during tensile ∗ Corresponding Author: Email address: [email protected] (Eduardo B. Pereira) Preprint submitted to Cement and Concrete Research February 7, 2012
Direct assessment of tensile stress-crack opening behavior of Strain Hardening Cementitious Composites (SHCC)
May 19, 2023
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