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Post-fire assessment of mechanical properties of polypropylene-fibered reactive powder concrete using non-destructive testing methods

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Reactive powder concrete (RPC) is an advanced generation of concrete having superior qualities than traditional types of concretes. However, fire may severely affect its quality and strength. In this paper mechanical properties of RPC containing polypropylene (PP) fibers were studied experimentally after exposure to high temperature. The quality of concrete was also assessed by non-destructive testing (NDTs) such as ultrasonic pulse velocity (UPV) method and resonance frequency (RF) method. Dynamic elastic modulus has been determined by available equation from NDTs measurements. The results show that an initial increase in strength was observed up to 300℃. However, a gradual decrease in strength occurred for temperature higher than 300℃. Constitutive relationships have been proposed for structural strength assessment through NDTs.

Original languageEnglish
Title of host publicationProceedings of the 12th fib International PhD Symposium in Civil Engineering
EditorsPetr Bily, Alena Kohoutkova, Jan L. Vitek, Michaela Frantova
PublisherCzech Technical University
Pages19-26
Number of pages8
ISBN (Print)9788001064016
StatePublished - 2018
Event12th fib International PhD Symposium in Civil Engineering - Prague, Czech Republic
Duration: 29 Aug 201831 Aug 2018

Publication series

NameProceedings of the 12th fib International PhD Symposium in Civil Engineering

Conference

Conference12th fib International PhD Symposium in Civil Engineering
Country/TerritoryCzech Republic
CityPrague
Period29/08/1831/08/18

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