A Comparison of Test Methods for Determination of Flexural Strength in Urea Model Ice

• Main Author: Borland, Sharon L.
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
• Format: Text
• Language: English
• Published: 1990
• Subjects: Snow; Ice and Permafrost; *ICE; *UREA; *FLEXURAL STRENGTH; MODELS; COMPARISON; DETERMINATION; CANTILEVER BEAMS; LABORATORY TESTS; DATA BASES; TEST AND EVALUATION; TEST METHODS; UREA ICE; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA227781; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA227781

Laboratory tests were performed in a basin to compare the flexural strength of urea ice obtained by three different beam test methods. The beam test used were in the in-situ three-point loaded simple beam test, the out-of- water three-point loaded simple beam test and the in-situ cantilever beam test. There is essentially no difference in flexural strength determined from either of the three-point beam test is also approximately equal to the value determined from the in-situ cantilever beam test. A reduction in flexural strength with increases in beam length-to-thickness ratio was observed for portions of the data set. Keywords: Cantilever beam test, Flexural strength, Laboratory tests, Model ice, Simple beam test, Urea ice.