APPLICATION OF FIBRE REINFORCED CONCRETE IN THE DESIGN AND CONSTRUCTION OF TENSION CONTROLLED STRUCTURES
APPLICATION OF FIBRE REINFORCED CONCRETE IN THE DESIGN AND CONSTRUCTION OF TENSION CONTROLLED STRUCTURES
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Date
1989-10
Authors
IBRAHIM, Yakubu
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Abstract
Linear-elastic theory of fracture mechanics was reviewed and a
proposed method for designing structural elements subjected principally
to tension presented, based on the strain-energy-release-rate for
the fibrous concrete mixes. Eighteen experimental models were provided
and of which seventeen were tested and reported including the load ranges
and associated circumferential strains upto failure of the experimental
hollow cylindrical models. Test results and theoretical values are found
to be in good agreement within the scope of the investigation, It is
concluded that inclusion of steel fibres in the concrete mixes does not
necessarily affect the cracking and crack propagation. It is also
concluded that for a specific fibre diameter, using a higher aspect ratio
for the given fibre favours failure of specimen by fibre fracture rather
than pull-out. Decrease in the strain energy release rate is obtained and
the economics of fibre concrete mixes was appraised without recourse to
financial consideration.
Description
Being a Thesis
Presented to the Postgraduate School of the
Ahmadu Bello University, Zaria, in partial
fulfillment of the requirements for the degree of
MASTER OF SCIENCE
(Civil Engineering Construction Materials)
November, 1989
Keywords
APPLICATION,, FIBRE REINFORCED,, CONSTRUCTION,, CONTROLLED STRUCTURES