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Title: Assessment of parameters governing the steel fiber alignment in fresh cement-based composites
Authors: Perez Villar, Victor
Flores Medina, Nelson 
Alonso, M. M.
Gismera Diez, Sara
Puertas, Francisca
UNESCO Clasification: 330505 Tecnología del hormigón
Keywords: Reinforced Concrete
Durability Properties
Orientation, et al
Issue Date: 2019
Journal: Construction and Building Materials 
Abstract: The main aim of this paper is to measure the induced torque needed to rotate a steel fiber, hence an experimental and parametrical analysis of factors governing steel fiber alignment in cement pastes and mortar, rotating from static position and rotating in a dynamic fluid is here presented. To aim this objective, a set of rheological tests has been conducted to assess the torque necessary to rotate steel fibers immersed into different fresh cement paste and mortar mixes with Bingham fluid behaviour. Fibers of different aspect ratios (length/width) and different geometry, straight and hooked-end, have been evaluated as they are the more commonly used. On the other hand, different parameters (type of mixture, size of aggregates, volume fraction of aggregates) affecting cement mixtures are also analysed and their influence in fiber orientation discussed.
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2019.02.036
Source: Construction And Building Materials[ISSN 0950-0618],v. 207, p. 548-562
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