Microstructural Characteristics of Polyurea and Polyurethanexerogels for Concrete Confinement with FRP System

Abstract

Due to their exceptional mechanical properties,xerogels attract increasing attention forstructural applications. In this study, the mechanical behavior of two types of polymeric xerogelsis investigated. The excellent energy-absorbing capability of those xerogelsis demonstrated by their stress-strain relations with respect to their microstructure determined withscanning electron microscopy (SEM). A pilot study on the effects of xerogellayers in an FRP system for concrete confinementis conducted.Test results clearly indicatedthat the proposed multi-layer systemcan significantly increase the ductility of confined concrete.

Meeting Name

International Conference on Civil, Materials and Environmental Sciences (2013: Apr. 17-18, Vancouver, Canada)

Department(s)

Civil, Architectural and Environmental Engineering

Second Department

Chemistry

Keywords and Phrases

Energy Absorption; Confinement; Polyurea; Nanoparticle; Polymeric Xerogels; Polyurethane (PU)

International Standard Serial Number (ISSN)

1022-6680; 1662-8985

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 Trans Tech Publications, All rights reserved.

Publication Date

01 Aug 2013

Share

 
COinS