Research Paper by
A.Dhasarathan1, Dr. R. Thenmozhi2, Mrs. S. Deepa Shree 3
1 PG Scholar, Government College of Technology, Coimbatore
2Associate Professor, Government College of Technology, Coimbatore
3 Assistant Professor, Jansons Institute of Technology, Coimbatore
ABSTRACT
Ferro cement elements are generally more ductile when compared to conventional reinforced concrete elements but post peak portion of load- deflection curve in bending test of Ferro cement elements reveals that failure occur either due to mortar failure in compression or due to failure of extreme layers of mesh. In this paper a study has been made on the ductility behaviour of hybrid Ferro cement elements by strengthening it in its tension zone by using GFRP layers and by adding polypropylene fibers into concrete. In present study, slab specimens of each 700 mm X 300 mm with varying parameters such as number of layers of mesh (2 & 3 bundled), layers of GFRP sheets (0 & 1) along with and without a specified proportion (0.30%) of polypropylene fibers were cast. Two point loading test was conducted on slabs and parameters such as ultimate moment capacity, ductility ratio and crack pattern were observed. From experimental results it was found that wrapping of GFRP in tension zone of slab increases confinement of bottom zone and using of fibre reinforced concrete has an influence on ductility and flexural capacities of ferrocement slabs.
Keywords: ferrocement slabs, GFRP wrapping, fibre reinforcement, ductility factors
Continue Reading »
A.Dhasarathan1, Dr. R. Thenmozhi2, Mrs. S. Deepa Shree 3
1 PG Scholar, Government College of Technology, Coimbatore
2Associate Professor, Government College of Technology, Coimbatore
3 Assistant Professor, Jansons Institute of Technology, Coimbatore
ABSTRACT
Ferro cement elements are generally more ductile when compared to conventional reinforced concrete elements but post peak portion of load- deflection curve in bending test of Ferro cement elements reveals that failure occur either due to mortar failure in compression or due to failure of extreme layers of mesh. In this paper a study has been made on the ductility behaviour of hybrid Ferro cement elements by strengthening it in its tension zone by using GFRP layers and by adding polypropylene fibers into concrete. In present study, slab specimens of each 700 mm X 300 mm with varying parameters such as number of layers of mesh (2 & 3 bundled), layers of GFRP sheets (0 & 1) along with and without a specified proportion (0.30%) of polypropylene fibers were cast. Two point loading test was conducted on slabs and parameters such as ultimate moment capacity, ductility ratio and crack pattern were observed. From experimental results it was found that wrapping of GFRP in tension zone of slab increases confinement of bottom zone and using of fibre reinforced concrete has an influence on ductility and flexural capacities of ferrocement slabs.
Keywords: ferrocement slabs, GFRP wrapping, fibre reinforcement, ductility factors
Continue Reading »
0 Comments:
Post a Comment
Thanks to Ur Support