Hybrid cement-based composites: dynamic and static tensile behaviors

Author(s): Z. Cohen, A. Peled, B. Mobasher, S. Janetzko, T. Gries
Paper category: Conference
Book title: 8th RILEM International Symposium on Fiber Reinforced Concrete: challenges and opportunities (BEFIB 2012)
Editor(s): Joaquim A.O. Barros
Print ISBN: 978-2-35158-132-2
e-ISBN: 978-2-35158-133-9
Publisher: RILEM Publications SARL
Pages: 534 - 546
Total Pages: 12
Language: English

Abstract: 
Hybrid systems with two or more fiber materials are used to combine the benefits of each fiber into a single composite product. Textile fabrics technology enables several ways to combine two or more yarn materials within a single fabric, with controlled orientation and location of each material either in orthogonal or co-linear directions. Textile reinforced cement-based composites (TRC) was found to highly improve performance of cement-based elements under low and high strain rate load-ing. Combining the advantages of textiles with hybrid composition can lead to superior performance of cement-based products, controlling the desired properties in the exact directions of the element follow-ing the magnitude and the direction of loading of the specific application. The purpose of the current work was to study the tensile behavior under dynamic and static conditions of cement-based compo-sites reinforced with hybrid fabrics. Hybrid fabric composites made of different content of brittle/ductile yarns were developed and studied with the following ratios: 1:0, 3:1, 1:1, 1:3, and 0:1. It was found that combination of PP and glass yarns in a hybrid fabric, highly influence the tensile behavior of ce-ment-based composites, under static condition. Different hybrid ratios can lead to a range of proper-ties from brittle composite to high ductile composite with very high strains. However, under dynamic loading no significant benefit of PP-glass hybrid composition was observed, all hybrid composites showed similar brittle behavior. A good correlation was found between fabric properties and composite behavior, for both loading rates.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00