1. Experimental investigation of impact-echo method for concrete slab thickness measurement;Popovics;J Korean Soc Nondestruct Test,2006
2. Maser KR. Non-destructive measurement of pavement layer thickness. Technical report. California Department of Transportation; 2003.
3. Deacon JA, Monismith CL, Harvey JT. Pay factors for asphalt-concrete construction: effect of construction quality on agency costs. Technical report. Pavement Research Center, Institute of Transportation Studies, University of California, Berkeley; 1997.
4. Gibson A. Advances in nondestructive testing of concrete pavements [Ph.d. thesis]. University of Illinois; 2004.
5. Impact-echo: non-destructive evaluation of concrete and masonry;Sansalone,1997