Experimental and numerical study on soft-hard-soft (SHS) cement based composite system under multiple impact loads

Abstract

The performance of the newly developed soft-hard-soft (SHS) cement based composite system under multiple impact loading was investigated using a combined numerical and experimental study. Such a composite consists of three layers including Geogrid (GST) reinforced asphalt concrete (AC) on the top, high strength concrete (HSC) layer in the middle, and fiber reinforced cementitious composites (FRCC) at the bottom. A Hard-Soft-Hard (HSH) composite pavement was also proposed and tested for comparison purpose. In addition, the experimental results were compared with standard rigid and flexible pavements. The SHS composite system exhibits minimum damage, higher energy absorption and significant im..