Investigation of Bond Behavior of PBO Fiber-Reinforced Cementitious Matrix Composite on Low-Strength Concrete Interfaces
Department
Civil, Architectural and Environmental Engineering
Major
Civil and Architectural Engineering
Research Advisor
Sneed, Lesley
Advisor's Department
Civil, Architectural and Environmental Engineering
Funding Source
Opportunities for Undergraduate Research Experiences (OURE)
Abstract
Fiber Reinforced Cementitious Matrix (FRCM) composites can be employed as a valid alternative to Fiber Reinforced Polymer (FRP) composites for strengthening existing reinforced concrete (RC) structures. The investigation of the bond between fiber reinforced composites and the substrate onto which they are applied is important to understand their failure mechanism. In this study, the bond was investigated using single-lap shear tests carried out on FRCM strips, comprised of one layer of PBO fiber net embedded within two layers of matrix, bonded on a concrete prism. The role of the substrate characteristics on the failure mechanism of the FRCM composite was under investigation, comparing normal-strength concrete and low-strength concrete substrates.
Biography
Sarah Jemison is a senior Civil and Architectural Engineering duel major from Nixa, MO. She is part of the first generation of Greenberg Scholars of the Civil, Architectural, and Environmental Engineering Department who will be participating in the Missouri S&T Master Student Fellowship Programs pursuing BS+MS in an accelerated manner. She is a member of the Steel Bridge Design Team as well as Chi Epsilon and a Mechanics of Materials Teaching Assistant.
Research Category
Engineering
Presentation Type
Poster Presentation
Document Type
Poster
Award
Engineering oral presentation, First place
Location
Upper Atrium/Hall
Presentation Date
11 Apr 2017, 1:00 pm - 3:00 pm
Investigation of Bond Behavior of PBO Fiber-Reinforced Cementitious Matrix Composite on Low-Strength Concrete Interfaces
Upper Atrium/Hall
Fiber Reinforced Cementitious Matrix (FRCM) composites can be employed as a valid alternative to Fiber Reinforced Polymer (FRP) composites for strengthening existing reinforced concrete (RC) structures. The investigation of the bond between fiber reinforced composites and the substrate onto which they are applied is important to understand their failure mechanism. In this study, the bond was investigated using single-lap shear tests carried out on FRCM strips, comprised of one layer of PBO fiber net embedded within two layers of matrix, bonded on a concrete prism. The role of the substrate characteristics on the failure mechanism of the FRCM composite was under investigation, comparing normal-strength concrete and low-strength concrete substrates.
