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Improving the mechanical properties of HFC by adjusting the filling method

Author(s): P. Stähli, M. Sutter, J.G.M. van Mier
Paper category: Workshop
Book title: Fifth International RILEM Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC5)
Editor(s): H.W. Reinhardt, A.E. Naaman
ISBN: 978-2-35158-046-2
Pages: 23 - 30
Total Pages: 8
Language: English

In this paper we investigated the relation between rheological properties, casting procedure and tensile strength of HFC. Tensile properties were determined in a newly developed test setup in which the specimen supports have no restrained freedom of movements. This goal has been achieved by means of an arrangement based on 'pendulum-bars'. Rheological tests were carried out on HFC using the same amount of super-plasticizer but cast by means of different mixing procedures. Four different casting methods and two different fibre mixtures have been investigated. It is shown that the performance of super- plasticizer can be improved, and with equal amounts of super-plasticizer but different mixing procedures the flow properties can be increased as well. The experiments showed that the casting method and the flow properties have a significant influence on the fibre alignment and the mechanical properties of HFC.

Online publication: 2014
Publication Type: full_text
Public price (Euros): 0.00

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