Effect of the Type of Silica Fume and Filler on Mechanical Properties of Ultra High Performance Concrete


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The large quantities of expensive materials such as steel fiber, silica fume, filler and superplasticizer required in the composition of Ultra-High Performance Concrete (UHPC) make its fabrication cost significantly higher than ordinary concrete. This study evaluates the effect of the type of silica fume and filler on mechanical properties of UHPC. The evaluation shows that the use of Zr silica powder instead of common silica fume improves significantly the fluidity of UHPC without loss of the strength and enables to reduce the amount of superplasticizer by maximum 70%. Moreover, the evaluation of the effect of the type and size of the filler reveals that modifying the size of the filler from 2 μm to 4 μm enhances the fluidity without strength loss and that the use of cement kiln dust (CKD) and limestone powder can achieve UHPC with compressive strength higher than 150 MPa. These results show that the use of the materials such as Zr silica powder, CKD and limestone powder can help to fabricate more economic UHPC.



Edited by:

Luis Rodríguez-Tembleque, Jaime Domínguez and Ferri M.H. Aliabadi




K. T. Koh et al., "Effect of the Type of Silica Fume and Filler on Mechanical Properties of Ultra High Performance Concrete", Key Engineering Materials, Vol. 774, pp. 349-354, 2018

Online since:

August 2018




[1] P. Richard and M. Cheyrezy, in: Composition of Reactive Powder Concrete, Cement and Concrete Research, Vol.25, No.7, 1995, pp.1501-1511.

DOI: https://doi.org/10.1016/0008-8846(95)00144-2

[2] K.T. Koh et al., in: A study on selection of the mix proportions of ultra-high strength steel fiber reinforced cementitious composites, Proceedings of JSCE, (2004).

[3] J.J. Park et al., in: Influence of the ingredients on the compressive strength of UHPC as a fundamental study to optimize the mixing proportion. Proceedings of the 2nd International Symposium on Ultra High Performance Concrete, Kassel, Germany, 2008, pp.105-112.

[4] K.T. Koh et al., in: Influence of the type of silica fume on the rheological and mechanical properties of ultra-high performance concrete, Key Engineering Materials 488-489, 2012, pp.274-277.

DOI: https://doi.org/10.4028/www.scientific.net/kem.488-489.274

[5] S.H. Park et al., in: Tensile behavior of ultra high performance hybrid fiber reinforced concrete, Cement & Concrete Composites. 34, 2012, pp.172-184.

DOI: https://doi.org/10.1016/j.cemconcomp.2011.09.009

[6] E.C. Torregrosa, in: Dosage optimization and bolted connections for UHPFRC ties, Ph.D. Thesis, Universitat Politècnica de València, (2013).

DOI: https://doi.org/10.4995/thesis/10251/34790

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