Fibre reinforced concrete is a composite material, made of concrete matrix with the addition of fibres. Fibres are usually made of steel, but they can also be made of carbon,plastic,glass. Hence, steel fibre reinforced concrete has been proved as a reliable and promising composite construction material having superior performance characteristics compared to conventional concrete. Geopolymer concrete mixes were prepared with solution to fly ash ratio of Crimped steel fibres having aspect ratio of 60 are used. considered as special type of fiber reinforced concrete. A SIFCON is a new method to increase the strength of concrete. It is incorporated by using some amount of steel fiber in mould to form very dense network of fiber. A network is then infiltrated with cement based slurry or mortar. Specimens consisted of conventionally cast concrete beams, layered beams using SIFCON construction technique, and thin SIFCON plates. Given the fiber geometries and types used, static and impact results indicate that this aramid fiber acts similarly to steel fiber and is superior to polypropylene fiber.
Soroushian P. et al (), in their paper entitled ‘Fiber-type effects on the performance of steel fiber reinforced concrete’ have presented the results of an experimental study on the relative effectiveness of different types of steel fiber in concrete. A constant fiber volume fraction of 2% was used throughout this investigation. In this present experimental work of investigation the main objective is to study the flexural strength of concrete using different fibres with same aspect ratio for all the fibres and to study. Crimped steel fibers of fiber volume fractions, Vf= %, % and %, with an aspect ratio of 80 were used in this study. Test results indicated that inclusion of steel fibers in to silica fume concrete improves the compressive strength by 13% and concrete mixes . Out of these, two were made of GPC and the remainder were of steel-fibre-reinforced GPC. The grade of concrete was M Different volume fractions of 025% (1662 kg/m 3), 050% (3925 kg/m 3), 075% (5887 kg/m 3) and 1% (7850 kg/m 3) of crimped steel fibres of aspect ratio 66 were used. The test results indicate that the incorporation.
high compared with plain concrete. (3) SIFCON exhibits high ductility. (4) The limitation in Steel Fibre Reinforced Concrete that is balling problem of steel fibers with increase in fiber volume is overcomes by SIFCON, because of its fiber alignment (5) Deflection for SIFCON will be very less compared to. The main objective of this study is to determine the mechanical properties of slurry infiltrated fibrous concrete with multi-scale of steel fibre. The aim of present investigation is to study the flexural behaviour of SIFCON. The steel fibres used for this study is crimped type of two different length 12 and 30 mm with 8% by volume. In this study totally 12 nos of beam-column joints were casted and tested. M60 grade of concrete had been used. In this study two types of fibres were used crimped steel fibres and polypropylene fibres. The volume fraction of crimped steel fibres was %, 1% and a polypropylene fibre . SIFCON is also different, because of its high steel fiber content. While in SFRC, the steel fibres are mixed ABSTRACT Slurry infiltrated fibrous concrete (SIFCON) is a novel type of high performance fiber reinforced concrete made by infiltrating steel fiber bed with a specially designed cement based slurry.