Use of the EN 12390-10 outside protected test as a tool for determining carbonation resistance

Thomas Alexander Harrison (Lead / Corresponding author), Rod Jones, Sivakumar Kandasami, Moray Newlands

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Abstract

From first principles, criteria for the EN 12390-10 outside protected test have been developed and compared with existing practice. These criteria align well with the UK recommendations but are more conservative than the current French and Spanish requirements. The EN 12390-10 outside protected test is unsuitable for classification as this would require anybody using the procedure with identical concrete to get the same result. Unfortunately, current tests that are suitable for classification, whilst safe, do not reflect the real performance of slowly reacting cements. Improving the test for classification purposes will take time and meantime the use of the EN 12390-10 outside protected test and the criteria given in this paper provides a procedure by which both sustainability and durability may be achieved. The downside of this test is its slowness and, therefore, it is only suitable for type testing or the determination of limiting values and other criteria to be used in specifications or production.

Original languageEnglish
Pages (from-to)497-506
Number of pages10
JournalMagazine of Concrete Research
Volume74
Issue number10
Early online date10 Dec 2021
DOIs
Publication statusPublished - May 2022

Keywords

  • apparatus & methods
  • Carbonation
  • Sustainability
  • Testing

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