1. EVALUATION OF CONCRETE SLABS USING AUTOMATED AIR-COUPLED IMPACT-ECHO METHOD Open Access Author: Riewestahl, Brian Title: EVALUATION OF CONCRETE SLABS USING AUTOMATED AIR-COUPLED IMPACT-ECHO METHOD Graduate Program: Architectural Engineering Keywords: nondestructive testingair-coupledimpact-echoautomated impactor File: Download Riewestahl_Thesis.pdf Committee Members: Thomas E Boothby, Thesis Advisor/Co-AdvisorThomas E Boothby, Thesis Advisor/Co-Advisor