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Testing of SFRC by the Schmidt Rebound Hammer

Published online by Cambridge University Press:  16 February 2011

Jakob Šušteršič ,
Milenko Rebić  and
Stanislav Urbančič
Jakob Šušteršič
Affiliation:
Institute for Testing and Research in Materials and Structures, Ljubljana, Dimičeva 12, 61000 Ljubljana, Yugoslavia
Milenko Rebić
Affiliation:
Institute for Testing and Research in Materials and Structures, Ljubljana, Dimičeva 12, 61000 Ljubljana, Yugoslavia
Stanislav Urbančič
Affiliation:
Institute for Testing and Research in Materials and Structures, Ljubljana, Dimičeva 12, 61000 Ljubljana, Yugoslavia
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Abstract

The rebound number, its relationship to fundamental frequency and correlations with compressive strength and erosion - abrasion resistance are discussed. Nine mix proportions were used. The w/c ratios were varied from 0.30 to 0.65. The volumetric percentage of hooked steel fibres was varied from 0.25 to 2.0 vol.% at the w/c of 0.30; at the others the quantity of fibres was constant. In addition, mixes without fibres were made at each w/c.

The rebound number and the fundamental frequency are decreased by an increase of steel fibre content. The rebound number correlates with erosion - abrasion resistance. It does not correlate with compressive strength of concretes with constant w/c and different contents of fibres.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 211: Symposium O – Fiber-Reinforced Cementitious Materials , 1990 , 33
Copyright
Copyright © Materials Research Society 1991

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References

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