?Since ancient times something or other has been used in the basic construction
material for extra strength. Like earlier, when houses were made from mud, mud was
mixed with some ratio of straws for more strength. Today the same technique of
mixing two different elements for strengthening construction material is used.
Concrete nowadays is the fundamental construction material and to make it more
strong, steel fibre and mica are used in it. This increases the structural ability of the
concrete. So wherever additional tensile strength and durability is required, steel fibre
reinforced concrete, SFRC is used.
Steel fibres are the small and circular steel wires having length between 30mm to 100
mm. It comes in three varieties viz: straight steel fibre, indention steel fibre and
hooked ends steel fibre. Further concrete is made strong with hydrate-cement, 0.25 - 2
volume % of steel fiber and fine-aggregate. For better result these fibres are dispersed
randomly in concrete.
Also by adding steel fibre to concrete, its durability, flexural and tensile strength
increases. But other mechanical properties of the concrete vary with the volume,
shape, percentage, size and distribution of fibre. Such as fibres in a plain, round or
straight shape do not develop strong bond and thus the flexural strength remains quiet
low. Improved strength, toughness, post-cracking load resistance of plain cement
concrete is greatly improved by adding steel fibre. This increased ability has also been
proved by extensive research work on this.
Today almost all the buildings and constructions made use of SFRC and because of
the huge development of airport, roads, dams, earthquake-resistant buildings in the
last two decads this material has gained further popularity.
Steel fibre reinforced concrete (SFRC) is used in places where very heavy wear and
tear is expected. And generally these are:
1: Steel fibres are used in mining and embankment stabilization. Also it is used for
making dam and water course lining.
2: This is also used in the making of erosion control structures.
3: Factory and warehouse floors, roundabouts, residential developments and spillways
are made of steel fibre reinforced concrete.
4: Tunnel segment liners, sound barriers, pontoons are also made from this kind of
steel fibre and concrete.
Steel fiber tenders expect the specification and nomenclature of the material used to
make steel fiber reinforced concrete. Like shotcrete is a highly fluid type concrete that
is used as a spray on vertical and irregular surfaces. Before spraying and for extra
strength steel mesh is installed. Further to improve the cohesion of shotcrete during
spraying, steel fibres are used in it. In these tenders you will have to specify the
details in detail.
Apart from this precast elements that are manufactured at places other than the
construction site and transported to these sites contain steel fibres for extra
performance. These are used in almost all kinds of bridges, building and roads
Most of the industrial ground slabs are made from this material that includes airport
runways etc. Cracking is highly reduced in these structures and these get additional
durability with SFRC.
At present huge construction of buildings, roads and bridges is happening in
Pondicherry thus Pondicherry tenders for construction and building material are in
boom. This gives new business opportunities to may new as well as existing
businesses. Along with this there are steel fibre tenders in the construction souk. In
such tenders, repair and fencing of roads, reconstruction of buildings along with new
construction is included.
Tenders.IndiaMart.com is the only source that provides free tenders from all over
India. It has the largest database of live and archives tenders for all category groups.
Browse our website for finding latest Pondicherry Tenders.
Also find various steel fibre tenders issues by state government.