NRC Ice Property Measurements During the Canmar Kogoriak Trials in the Beaufort Sea Winter 1979-80

This paper sets forth the results of ice properties measurements carried out during the ice breaking trials of the "CANMAR KIGORIAK" in the winter of 1979-80. The measurements included crystallographic analysis to establish ice type and structure, temperature and salinity profiling of ice cores, and uniaxial compression and "Brazil" strength tests. These measurements were all performed on board ship at the time of the trials. The ice analyzed included samples from both first-year ice covers and multi-year pressure ridges. Strength results were found to generally agree with values in the literature.Nous avons soumis des \ue9chantillons de glace \ue0 des essais en rupture \ue0 bord du "CANMAR KIGORIAK" \ue0 l'hiver 1979-80, afin de mesurer les propri\ue9t\ue9s de la glace. Ce document pr\ue9sente les r\ue9sultats de ces mesures qui comportaient, entre autres, une analyse crystallographique permettant d'\ue9tablir le type et la structure de la glace, la temp\ue9rature et le profil de salinit\ue9 des \ue9chantillons consid\ue9r\ue9s ainsi que des essais en compression uniaxiale et des essais de r\ue9sistance "Brazil". Ces mesures ont toutes \ue9t\ue9 prises \ue0 bord, au moment des essais. L'analyse portait sur des \ue9chantillons de glace extraits de couvertures de glace vieilles d'un an et de cr\ueates de pouss\ue9e vieilles de plusieurs ann\ue9es. De facon g\ue9n\ue9rale, les r\ue9sultats des essais de resistance concordaient avec les valeurs que l'on trouve \ue0 l'int\ue9rieur de la documentation \ue9crite.Peer reviewed: NoNRC publication: Ye