Synthetic and steel fibres in concrete with regard to equal toughness

Richardson, Alan, Coventry, Kathryn and Landless, Sean (2010) Synthetic and steel fibres in concrete with regard to equal toughness. Structural Survey, 28 (5). pp. 355-369. ISSN 0263-080X

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Purpose – Establishing toughness performance in concrete using steel fibres is well understood, and design guides are available to assist with this process. What is less readily understood is the use of Type 2 synthetic fibres to provide toughness. This problem is exacerbated by the wide range of synthetic fibres available, with each different fibre providing different structural properties. This paper seeks to address this issue.

Design/methodology/approach – The paper examines the relative pull-out values of two single fibre types, i.e. steel and Type 2 synthetic fibres. The pull-out test results have informed the doses of fibre additions to beams which have been used to equate near equal toughness performance for each fibre type.

Findings – The results show that synthetic Type 2 fibres, when used at a prescribed additional volume, can provide toughness equal to steel fibre concrete.

Originality/value – The scientific study of fibre pull-out behaviour is well understood and described herein under additional reading. Practical testing to show contractors and clients how to balance the dose of fibres in concrete, so that synthetic fibres could be used as a steel fibre replacement, is not well researched. This paper bridges the information gap.

Item Type: Article
Uncontrolled Keywords: Cement and concrete technology, loading (physics), steel, synthetic fibres
Subjects: F200 Materials Science
J400 Polymers and Textiles
Department: Faculties > Engineering and Environment > Architecture and Built Environment
Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Helen Pattison
Date Deposited: 26 Apr 2012 12:36
Last Modified: 13 Oct 2019 00:30

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