DEVICE FOR TESTING CONSTRUCTION MATERIALS FOR CRUSHING, AND TEST METHOD OF CRUSHING

摘要

FIELD: testing equipment.;SUBSTANCE: device comprises two load frames mounted in the upper jaw of the testing machine, each the loading frame has an opening into which is inserted crushes cylindrical pin, load frames are fixed together by bolts with minimal clearance providing for free movement of the sample relative to the frames, the pattern corresponds to ASTM E238. At the lower edge of the opening in the sample from both sides of the sample, the teeth with the blades are set, fixed in the holder, tightened together by bolts. Structurally, the independent movement of the clamp with respect to the blades of the loading frame is provided. The opening sensor is mounted on a cylindrical pin crushes the edges and pressing. SUMMARY: ovalization holes during the test is registered by moving clamps, fixed by means of the knives on the lower edge of the opening relative to the fixed crashing pin. When this metering orifice is provided in the deformation process directly to the test circuit holes.;EFFECT: increased measuring accuracy and simplified the device structure.;5 cl, 5 dwg