期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2015
卷号：4
期号：9
页码：14261-14266
DOI：10.18535/ijecs/v4i9.35
出版社：IJECS
摘要：Slurry infiltrated fibrous concrete (SIFCON) is a novel type of high performance fibre reinforced concrete madeby infiltrating steel fibre bed with a specially designed cement based slurry. Laboratory experiments have shown thatSIFCON is an innovative construction material possessing both high strength and large ductility. In the present study, theuse of SIFCON has been investigated as an externally bonded strengthening material on reinforced concrete beams Theexperimental programme has been carried out to study the behaviour of flexural RC beams with precast SIFCONlaminates. A total number of twenty one specimens of size 150mm x 300mm x1800mm corresponding to four test series arecast and tested under static loading to study the load deformation behaviour and ductility associated parameters. Theconcrete beams has been designed to obtain a concrete grade of M20.For laminates the fibre volume fraction was 7% and10%. The steel fibres used in the study were hooked end steel fibres having 0.6mm diameter and aspect ratio of 50.Previous results indicate that the strengthening of RC beams with SIFCON laminates has significantly improved thecracking behaviour in terms of significant increase in first crack load and the formation of larger number of finer cracks.The stiffness, ductility and energy absorption are found to be increase to a great extent when the beams are strengthenedby three face confinement ( bottom & side faces ).
