Patent Number: 6,253,617

Title: Process for testing the freeze-thaw resistance of solids

Abstract: A solid to be tested is preconditioned by drying it to a specified moisture content and its load surface is inserted downward into a test container which takes up test liquid thereby completely wetting the load surface. The test container is immersed in a temperature equalization bath which is temperature controlled. The test liquid is subjected to a predetermined temperature-time profile simulating a freeze-thaw cycle via the temperature-equalization bath. Then, at least one comparison measurement is taken to determine a change in a physical quantity representative of the inner damage to the solid. From the comparative physical values measured, the inner damage to the solid is determined based on the effects of the freeze-thaw cycle and the test liquid.

Inventors: Setzer; Max I. (Essen, DE)


International Classification: G01N 29/32 (20060101); G01N 29/22 (20060101); G01N 3/60 (20060101); G01N 29/07 (20060101); G01N 29/04 (20060101); G01H 005/00 ()

Expiration Date: 07/03/2018