Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/111025
Author(s): | Mário Pimentel Sandra Nunes Filipe Ribeiro Paula Milheiro-Oliveira Adriano Carvalho |
Title: | Estimation of the tensile strength of UHPFRC layers based on non-destructive assessment of the fibre content and orientation |
Issue Date: | 2017-07-20 |
Abstract: | In the present study we propose a procedure for estimating the tensile strength of thin ultra-high performance fibre-reinforced cement-based composite (UHPFRC) layers, which eliminates the need of extracting cores or samples from the structure. This procedure relies on a non-destructive testing (NDT) method based on the ferromagnetic properties of the steel fibres for estimating the parameters of the underlying physical model, namely, the fibre content and the fibre orientation factor, and on laboratory tensile tests for estimating the equivalent rigid-plastic fibre-to-matrix bond strength. An experimental program was developed for establishing the relation between the NUT measurements and the orientation parameters determined from image analysis. Following the proposed procedure, the tensile strength of 36 specimens with varying fibre content and fibre orientation distributions is estimated based on the magnetic measurements and compared to experimental results. The good correlation that is found demonstrates the significance of the proposed NDT method in the implementation of quality control procedures of thin UHPFRC elements/layers. |
Subject: | Engenharia do betão, Engenharia estrutural, Engenharia civil Concrete engineering, Structural engineering, Civil engineering |
Scientific areas: | Ciências da engenharia e tecnologias::Engenharia civil Engineering and technology::Civil engineering |
URI: | https://hdl.handle.net/10216/111025 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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202331.pdf Restricted Access | journal | 2.44 MB | Adobe PDF | Request a copy from the Author(s) |
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