TY JOUR TI Forensic examination in detecting voids in cast-in-place concrete slabs: methods and interpretation of results KW forensic examination KW cast-in-place reinforced concrete KW concreting defects KW concrete voids KW non-destructive testing KW ground-penetrating radar KW ultrasonic testing KW thermographic method KW interpretation of results JO Construction production AU Bolshakova, P.V. AU Sever'yanova, E.A. AU Grigoryan, I.O. PY 2026 IS 0 PB Publishing Center RIOR