Abstract
Plate impact experiments have been performed to determine the dynamic compression behavior of mortar. To investigate the effect of static strength to shock response, three types of mortar, which are denoted as low-strength, mid-strength and high-strength mortar, have been used. The static compression strength of each mortar is 40.3, 78.5 and 174 MPa. Longitudinal stress induced by impact loading have been directly measured by means of embedded polyvinylidene fluoride (PVDF) gauges. The longitudinal stress profile of each mortar shows the inflection of stress-wave front associated with the compaction of pores. The dynamic compression strength of each mortar is determined to be 115, 257 and 895 MPa. The ratio of dynamic to static strength is increased with an increase in the static compression strength.
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