Functioning of bi-material interface intended for polypropylene fibre concrete
P.V. Ramana, Arigela Surendranath, Anamika Agnihotri, Kunal Bisht
Abstract
This paper examines the mechanical, durability and scanning electron micrograph results of bi-material concrete encompassing mesh type fibrillated polypropylene fibre which depicts the smooth texture on the surface even though the unflawed bond has been observed between control mix and fibre concrete layer. The main aim of this paper is to investigate bond strength between controlled concrete and fibre test specimen interaction and their bonding properties at various levels described. The examinational tests of concrete in the hardened state performed to assess compressive, flexural, pull-off strengths and durability properties corresponding abrasion test for the heterogeneous proportions. The results of compressive and flexural strength gain anonymously in bi-material concrete. Microstructural properties of interface observed and scrutinised through a scanning electron microscope and optical microscopy tests conducted and evaluated the crack growth prediction and resistance to crack growth due to bi-material fibred concrete. Investigational tests conducted to assess the bi-material interface characteristics accompanied multifarious proportions of fibre in concrete. Executed results provide an advance understanding of the function of bi-material interfaces and further development in the experimental performance of fibre cementitious materials.