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 journalArticlepeer-review

11 Citations (Scopus)
48 Downloads (Pure)

Abstract

This paper reports on the accuracy of new test methods developed to measure the air and water permeability of high-performance concretes (HPCs). Five representative HPC and one normal concrete (NC) mixtures were tested to estimate both repeatability and reliability of the proposed methods. Repeatability acceptance was adjudged using values of signal-noise ratio (SNR) and discrimination ratio (DR), and reliability was investigated by comparing against standard laboratory-based test methods (i.e., the RILEM gas permeability test and BS EN water penetration test). With SNR and DR values satisfying recommended criteria, it was concluded that test repeatability error has no significant influence on results. In addition, the research confirmed strong positive relationships between the proposed test methods and existing standard permeability assessment techniques. Based on these findings, the proposed test methods show strong potential to become recognized as international methods for determining the permeability of HPCs.
Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalJournal of Materials in Civil Engineering
Volume27
Issue number12
Early online date6 May 2015
DOIs
Publication statusPublished - 15 Dec 2015

Bibliographical note

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Keywords

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

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