Nordic Concrete Research Workshop - POSTPONED

NOTE: This event is postponed! New date will be announced as soon as possible.

ACCELERATED FREEZE-THAW TESTING OF CONCRETE

24-25 January 2022 at Technical University of Denmark (Kgs. Lyngby, Denmark)

There is a push for performance-based concrete design at the expense of deemed to satisfy approaches. This also pushes for more performance testing. There are several test standards that can be used to quantify concrete frost resistance, e.g. ASTM C666, ASTM C672, and CEN/TS 12390-9, where the later contains three different test methods to choose from. In addition, a number of product standards for concrete products also specify different accelerated freeze-thaw methods.

The aim of the workshop is to discuss the results of recent years’ research in relation to accelerated freeze-thaw testing of concrete. For example:

  • How well does specific methods represent field conditions?
  • Even the test principle is similar, test methods differ in specific parameters. The three test methods in CEN/TS 12390-9 (slab test, cube test, and CDF test, respectively) e.g. differ with respect to
    - duration of capillary suction prior to freeze/thaw (slab: 3 days; cube: 1 day; CDF: 7 days)
    - type of liquid used for capillary suction (slab: pure water; cube & CDF: 3% NaCl)
    - amount of freezing medium relative to test surface (slab: 3 mm; CDF: 5 mm; cube > 10 mm)
    - Temperature cycle (slab: 24 h; cube: 24 h (not identical to slab cycle); CDF: 12 h)
    How does choice of specific parameters influence the test result?
  • Are some test methods more or less favorable for concrete with supplementary cementitious materials (SCM)?
  • How can reproducibility be improved and inter-laboratory variations be limited?

The workshop is not limited to the above questions – they are only meant as inspiration. All presentations related to the over-all topic “Accelerated freeze-thaw testing of concrete” are welcome.

Organizing committee

If you need further information on top of what is stated in the following pages,
please contact the organizing committee:

  • Associate professor Marianne Tange Hasholt (matah@byg.dtu.dk),
    of Civil Engineering, Technical University of Denmark
  • Head of department Katja Frid (frid@mau.se),
    Dept. of Materials Science and Applied Mathematics, Malmö University

Accomodation

Accomodation is not included in the workshop fee. If you are looking for a hotel in the vicinity of DTU, please have a look at the following webpage: https://www.byg.dtu.dk/english/about/contact_and_practical_info/accomodation

Proceedings

There will be no workshop proceedings. It is planned to submit an extensive workshop summary to the journal “Nordic Concrete Research”. All workshop presenters will be asked if they would like to co-author the summary.

Venue

Technical University of Denmark (DTU), Anker Engelunds Vej 1, DK-2800 Kgs. Lyngby: www.dtu.dk/english/about/campuses/dtu-lyngby-campus/getting-there

Registration of presentations

If you would like to present at the workshop, please send a mail including

  • Headline
  • Short summary (100-200 words)

to Marianne Tange Hasholt (matah@byg.dtu.dk) no later than 15 December 2021.

For program

https://www.conferencemanager.dk/ncr-2022/conference

For registration 

https://www.conferencemanager.dk/ncr-2022/signup

Time

Mon 24 Jan 22 9:00 -
Tue 25 Jan 22 16:00