Open AccessMacro synthetic fibre reinforced concrete: Influence of the matrix mix design on interfacial bond behavior
Author(s) -
Clementina Del Prete,
Nicola Buratti,
Stefania Manzi,
Claudio Mazzotti
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/596/1/012025
Subject(s) - materials science , polypropylene , composite material , composite number , cement , flexural strength , bond strength , matrix (chemical analysis) , compression (physics) , macro , bond , structural engineering , computer science , engineering , layer (electronics) , adhesive , programming language , finance , economics
Since the composite nature of Fibre Reinforced Concrete materials, their performance is strictly dependent on the mechanical properties of their components, matrix and fibres, but, above all, on their interaction. The collaboration of the two materials is directly responsible of the force transferring mechanism from concrete to fibres that reflects their contribute in the residual flexural strength performance. This paper aims at understanding how the concrete admixture components might affect the bond of polypropylene crimped fibres, and presents the preliminary results of an experimental campaign consisting of pull-out and compression tests. Four water cement ratios and three cement-sand ratios were considered. The experimental analysis is also supported by the calibration of a numerical model that simulates the pull-out behaviour of a single fibre.