A Study on Applicability of Sandblast Method as Alternative Method for Abrasion Tester Using Water Jet with Sand

Abstract

Examination on applicability of sandblast method as alternative method for abrasion tester using water jet with sand and confirmation on usefulness of sandblast for evaluation method on abrasion resistance of material in general were subject of this study. Comparison experiment using mortar specimen with different particle size of fine aggregate was conducted. As a result, it was confirmed that abrasion mechanism of sandblast was changed with change of test time, sandblast in short test time could simulate selective abrasion like obtained from abrasion tester using water jet with sand. On the other hand, sandblast in long test time could simulate uniform abrasion like obtained from taber type abrasion tester. There is a possibility that evaluation on abrasion resistance by sandblast is equivalent to current quality evaluation of inorganic repairing material by abrasion tester using water jet with sand. But, it was established only under the following conditions: test time of sandblast is 10 seconds and particle size of fine aggregate is over 0.6 mm.