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Length comparators



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Two models of comparators measure length changes of hardened cement paste, mortar and concrete prismatic specimens. Indicator is mounted on a strudy upright support attached to solid triangular base. Model HU3250D features easy to read digital indicator eliminating need to count revolution hands. Unit can be zeored at any point on the range and can be switched from inches to mm by passing a button. Includes stationary and movable anvils designed to fit the HU3260 gauge studs that are cast on test specimens and invar reference bar. Unit accommadates test specimens up to 4 x 4 inch cross section.


 

Product #ProductNameStandards
  HU3250Comparators for Standard 10 inch Effective Gauge LengthASTM C151, C157, C227, C311, C341, C342, C452, C490, C596, AASHTO M210, T107, T160
  HU3250DComparators for Standard 10 inch Effective Gauge Length with digital indicatorASTM C151, C157, C227, C311, C341, C342, C452, C490, C596, AASHTO M210, T107, T160
  HU3248Comparators for Standard 16 inch Effective Gauge LengthASTM C151, C157, C227, C311, C341, C342, C452, C490, C596, AASHTO M210, T107, T160
  HU3248DComparators for Standard 16 inch Effective Gauge Length with digital indicatorASTM C151, C157, C227, C311, C341, C342, C452, C490, C596, AASHTO M210, T107, T160