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Author(s): M. C. S. Ribeiro
L. F. P. Juvandes
J. Dias Rodrigues
A. J. M. Ferreira
A. T. Marques
Title: Investigating resistance of cement and polymer mortar materials to rapid freeze-thaw cycling: comparative study and evaluation of test methodologies
Issue Date: 2009
Abstract: The aim of this investigation work is threefold: 1) To analyse and quantify freeze-thawresistance of glass fibre reinforced epoxy polymer mortars, comparatively to both normal cementmortars and plain epoxy polymer mortars; 2) To determine glass fibre reinforcement effect onfreeze-thaw behaviour; and 3) To evaluate the reliability of ASTM C666M-03 test methodology forthe assessment of freeze-thaw resistance of polymer concrete materials. For this purpose several testspecimens, normal cement mortars, plain and glass-fibre reinforced epoxy polymer mortars weresubmitted to freeze-thaw cycling between 36 up to 300 cycles, according to the above norm.Dynamic elasticity modulus, with basis on fundamental resonance frequency measurements, wascalculated every 36 cycles, and the correspondent relative dynamic elasticity modulus wasdetermined for each cycling period. In order to assess the reliability of this non-destructive testmethodology, three specimens of each formulation were withdrawn at regular periods and tested inbending and compression. Relative mechanical strengths, as function of conditioning period, werecompared with correspondent relative dynamic modulus of elasticity.
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Source: 15th International Conference on Composite Structures (ICCS15)
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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