Effect of Synthetic Hair Fibre Additions on the Strength Characteristics of Concrete
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Date
2016
Authors
Adedokun S.I.
Ajamu S.O.
Aderinto H.T.
Journal Title
Journal ISSN
Volume Title
Publisher
Department of Civil Engineering, Unilorin, Nigeria
Abstract
Extensive research has been carried out on the use of different kinds of fibres
to improve the characteristics of construction materials. However, literature
is scarce on the use of synthetic hair fibre for similar purposes. In this study,
effect of synthetic hair fibre addition on the strength of concrete was
examined. The synthetic hair fibres were added to the concrete in various
percentages by mass of cement from 0% to 6% in intervals of 2%. The
impacts of the fibre addition on the workability of concrete were investigated
through slump and compacting factor tests. The compressive strength, split
tensile strength and density tests were also conducted on each of the test
specimens after 7, 14, 21 and 28 days curing, respectively. The results
obtained from both the slump and compacting factor tests showed that the
workability increased with the addition of fibres with compacting factor and
slump increasing from 0.86 to 0.9 and 17 to 25 mm respectively. The fibre
additions also increased the compressive and split tensile strengths with
increasing days of curing from 0% to 2% but decreased for higher hair fibre
contents with days of curing. It was also observed from the results that the
density of concrete at 28days decreased with increase in hair contents. Based
on this study, addition of 2% hair fibre by weight of the cement is therefore
recommended as the optimum value for improving the compressive and
tensile strength of the concrete.
Description
Scholarly article
Keywords
Synthetic hair fibre , Concrete , Workability , Split tensile strength , Compressive strength , Density , Research Subject Categories::TECHNOLOGY
Citation
Adedokun, S. I., Ajamu, S. O. and Aderinto, H. O. (2016). “Effect of Synthetic Hair Fibre Additions on the Strength Characteristics of Concrete”, USEP: Journal of Research in Civil Engineering (RICE), Vol. 13, (2):928-939.