100035053

PERFORMANCE OF STEEL REINFORCED SIFCON TWO – WAY
SLABS IN FLEXURE
Conference
35th Our World in Concrete and Structures (OWICs) - 2010
Authors
H Sudarsana Rao* J.N.T.A. University, Anantapur, India
Handle
100035053
Key Words
SIFCON, FRC, RCC, Fibre, Flexure
Abstract
Slurry infiltrated fibre concrete (SIFCON) is recently developed construction material.
It can be rightly thought as pre placed fibre concrete, analogous to pre placed
aggregate concrete. In fibre reinforced concrete (FRC), the fibres are mixed along
with the other ingredients maximum of two percent volume but the placement of
steel fibres in a form or mould is the initial step in the preparation of SIFCON could
be considered as a special type of fibre concrete with high fibre content up to 20
percent of volume. The matrix consists of cement slurry of flowing cement mortar.
This material has been used for repair of prestressed concrete beams, security
vaults, bridge deck rehabilitation, pavement rehabilitation, refractory application,
subjected to blast loading etc. Because of its high strengths, excellent energy
absorption, ample stiffness and many other good properties, pre-cast SIFCON slabs
will have a wide range of structural engineering applications where high energy
elements are required. This paper presents the progress of the research on making
steel reinforced SIFCON slabs with low tensile strength steel fibre. The investigation
aims at making and studying the behavior of three edges fixed and the other one
edge simply supported steel reinforced SIFCON two–way slabs in flexure. Nine
numbers of steel reinforced SIFCON slabs with three different percentages [8, 10
and 12] of fibre, as control specimens’ three FRC slab specimens with 2 percent
fibre volume and three Reinforced cement concrete [RCC] slab specimens were also
cast and tested. All the slabs are of size 600x600x50 mm. The results of the
experimental investigation conclude that the slabs with 12 percent fibre volume show
excellent performance over RCC and FRC Slab specimens.
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100035053
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