High Performance And Serviceability Of Fibre
Reinforced Concrete
Author(s)
P. J. Sasturkar
Abstract
Ten simply supported grossly under-reinforced tapered concrete beams of full
size were tested up to complete collapse under flexural effect .Out of 10 beams, 5
beams were non-fibrous and the remaining beams contained fibres. The beams
had a variation in the tapered angle as 2°, 4°, 6°, 8° and 10°. The concrete mix,
conventional steel and the type of fibre used were held constant. Flat corrugated
steel fibres were utilized as secondary reinforcement. The strength and stability
parameters were measured. It is established that the fibrous tapered beams can be
used economically in earthquake prone areas.
Keywords: earthquake, grossly under-reinforced sections, fibre reinforced
concrete, tapered beams.
1 Introduction
Concrete is probably the most widely used man made construction material
around the world. The use of different types of fibres in varying shapes and sizes
along with the ingredients of concrete was investigated to produce a composite
material called ‘Fibre Reinforced Concrete’ (FRC) or ‘Fibrous Concrete’. The
progress and economics of construction technology depends on the intelligent
use of materials and on the continuous improvement of available materials.
Fibres arrest cracks and increase the tensile strength of concrete as was
proved by Romauldi and Batson [1]. The ductility of fibrous beams is also
increased as shown by Swamy and Mangat [2], Sasturkar [3] and Kaushik and
Sasturkar [4]. Liang and Galvez [5] proved that the peak-load capacity and
fracture toughness, as indicator of ductility, were enhanced.
Crack resistance and fracture toughness of fibrous beams is enhanced as
shown by Johnston and Gray [6] and Balaguru et al. [7]. Ramakrishnan and
Keywords
earthquake, grossly under-reinforced sections, fibre reinforced
concrete, tapered beams.
Related Book
Other papers in this volume
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