GLASS FIBER SURFACE MODIFICATION BY ELASTOMER & IT’S USE IN CONCRETE

Abstract

The utilization of surface functionalized fibers in concrete applications has garnered significant interest due to their exceptional tensile properties, enhanced Young's Modulus, ease of application, lightweight characteristics, and corrosion resistance, among other desirable attributes. To increase the bond between the fibers and the matrix, a variety of approaches have been used, with the main emphasis being on changing the fiber surface using the proper chemical treatments and applying various elastomeric coatings for both static and dynamic applications, such as impact and fatigue. Carbon fibers and glass fibers possess inherent affinity and excellent compatibility with polar & non-polar elastomeric materials. In this study, we aim to modify the surface of glass fibers using elastomeric coatings to facilitate effective fiber-matrix adhesion and mitigate brittle failure during impact loading. The proposed elastomeric coating will be implemented in the contact zone between AR-glass fibers and the matrix in fiber-reinforced concrete composites. This implementation aims to enhance the crack-bridging behavior by capitalizing on the high tensile strength of the fibers, which is complemented by polymer deformation in the interphase during fiber pull-out. By incorporating this approach, we anticipate notable improvements in the overall performance of concrete composites.