Shock Hugoniot and release in concrete with different aggregate sizes from3 to 23 GPa

A series of controlled impact experiments has been performed to determine t he shock loading and release behavior of two types of concrete, differentia ted by aggregate size, but with average densities varying by less than 2 pe rcent. Hugoniot stress and subsequent release data was collected over a ran ge of approximately 3 to 25 GPa using a plate reverberation technique in co mbination with velocity interferometry. The results of the current data are compared to those obtained in previous studies on concrete with a differen t aggregate size but similar density. Results indicate that the average loa ding and release behavior are comparable for the three types of concrete di scussed in this paper. Residual strain is also indicated from these measure ments. (C) 1999 Elsevier Science Ltd. All rights reserved.