Analytical Modeling of the Bond Behavior between ‎Textile ‎and Mortar Based on Pull-Out ‎Tests

Abstract:

It is clear that the fiber-to-mortar bond behavior plays a major role on the performance of Textile Reinforced Mortars (TRMs) used for strengthening of existing structures. This aspect, however, has been only the subject of few studies and require further attention.This paper presents an analytical model for extraction of the textile-to-‎mortar bond-slip laws from pull-out tests. The ‎objective is to ‎characterize the parameters that ‎influence the ‎pull-out behavior of TRM ‎systems. ‎In the formulation of the ‎pull-out model, a ‎modified approach ‎based ‎on a mathematical model by Naaman ‎is applied. Firstly, based on ‎the ‎experimental ‎results, a relationship between the bond shear stress and the ‎relative slip ‎along the fiber-mortar ‎interface is obtained. Then, based on the ‎shear stress-slip law, the ‎boundary conditions, equations ‎of equilibrium, and ‎the equation of ‎compatibility and hooke’s ‎law, the bond response ‎between ‎textile and mortar is predicted and modeled.

• Periodical: Key Engineering Materials (Volume 817)
• Pages: 112-117
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.817.112
• Online since: August 2019
• Authors: Ali Dalalbashi*, Bahman Ghiassi, Daniel V. Oliveira
• Keywords: Bond Behavior, Pull-Out Test, Shear Stress Bond-Slip Law, Textile-Reinforced Mortar

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