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Toughness testing of ultra high performance fibre reinforced concrete
Abstract In this paper an investigation is made of the applicability of the ASTM C 1609 procedure for testing toughness of ultra high performance fibre reinforced concretes containing a large amount of fibre (≥2% by volume) and exhibiting deflection hardening behaviour. All mixtures exhibited deflection hardening behaviour, and the parameters varied included (1) the amount of steel fibres, (2) the type of steel fibres, (3) the size of the longest fibre, (4) the addition of polypropylene fibres, and (5) the size of the maximum aggregate grain in the concrete matrix. Based on comparison of the curves obtained from flexural toughness tests with the evaluation of the test results obtained according to ASTM C 1609 and with the statistical analysis, the authors recommended additional toughness parameters ($ P_{100,3.00} $, $ P_{100,4.00} $, $ P_{100,6.00} $, $ T_{100,3.00} $, $ T_{100,4.00} $, and $ T_{100,6.00} $) for the evaluation of toughness results. Such additional toughness parameters are calculated using a similar procedure as that specified in ASTM C 1609.
Toughness testing of ultra high performance fibre reinforced concrete
Abstract In this paper an investigation is made of the applicability of the ASTM C 1609 procedure for testing toughness of ultra high performance fibre reinforced concretes containing a large amount of fibre (≥2% by volume) and exhibiting deflection hardening behaviour. All mixtures exhibited deflection hardening behaviour, and the parameters varied included (1) the amount of steel fibres, (2) the type of steel fibres, (3) the size of the longest fibre, (4) the addition of polypropylene fibres, and (5) the size of the maximum aggregate grain in the concrete matrix. Based on comparison of the curves obtained from flexural toughness tests with the evaluation of the test results obtained according to ASTM C 1609 and with the statistical analysis, the authors recommended additional toughness parameters ($ P_{100,3.00} $, $ P_{100,4.00} $, $ P_{100,6.00} $, $ T_{100,3.00} $, $ T_{100,4.00} $, and $ T_{100,6.00} $) for the evaluation of toughness results. Such additional toughness parameters are calculated using a similar procedure as that specified in ASTM C 1609.
Toughness testing of ultra high performance fibre reinforced concrete
Skazlić, Marijan (author) / Bjegović, Dubravka (author)
2008
Article (Journal)
Electronic Resource
English
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