| Résumé | A new type of model ice has been developed for use in refrigerated towing basins. The ice is grown from an aqueous solution containing three different chemical dopants - ethylene glycol (EG), aliphatic detergent (AD) and sugar (S). In this paper, the concepts and development of this model ice are discussed. Analysis of the structure of the ice indicates that it is single layered, fine-grained and strictly columnar. A number of the mechanical properties of EG/AD/S model ice have been measured including the flexural strength, uni-axial and confined compressive strength, strain modulus and critical stress intensity factor. The results of these tests are compared to appropriately scaled sea ice values and the corresponding properties for carbamide (urea) model ice. This comparison shows that this new ice is far superior to urea model ice in all respects. |
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