Repeatability and Reliability of New Air and Water Permeability Tests for Assessing the Durability of High Performance Concretes

Kai Yang, Muhammed Basheer, Bryan Magee, Yun Bai, Adrian Long

Research output: Contribution to journalArticle

8 Citations (Scopus)
1 Downloads (Pure)

Abstract

This paper reports the accuracy of new test methods developed to measure the air andwater permeability of high performance concretes (HPCs). Five representative HPCsand one normal concrete (NC) mixture were tested to estimate both repeatability andreliability of the proposed methods. Repeatability acceptance was adjudged usingvalues of signal-noise ratio (SNR) and discrimination ratio (DR), and reliability wasinvestigated by comparing against standard laboratory-based test methods (RILEMgas permeability test and BS EN water penetration test). With SNR and DR valuessatisfying recommended criteria, it was concluded that test repeatability error has nosignificant influence on results. In addition, the research confirmed strong positiverelationships between the proposed test methods and existing standard permeabilityassessment techniques. Based on these findings, the proposed test methods showstrong potential to become recognised as international methods for determining thepermeability of HPCs.
Original languageEnglish
Pages (from-to)1-11
JournalJournal of Materials in Civil Engineering
Volume27
Issue number12
DOIs
Publication statusPublished - 15 Dec 2015

Keywords

  • High-performance concrete (HPC)
  • Permeability testing
  • Signal-noise ratio (SNR)
  • Discrimination ratio (DR)
  • Reliability
  • Standard laboratory permeability test.

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