Meet Gei's

Bernhardt Hertlein

Senior Consultant

Bernhardt Hertlein is a Non-Destructive Test (NDT) expert specializing in developing new applications for NDT methods, designing or building required hardware and writing appropriate software. For the 12 years prior to joining GEI, Mr. Hertlein served as the head of an NDT group for a large engineering firm in Illinois. He was responsible for NDT and geophysical measurement technology used for construction quality control, structural integrity and condition assessment, and monitoring of remedial and rehabilitation works.

Mr. Hertlein is an active member of several professional societies, currently serving as secretary of ACI committee 228 and chairman of committee 336, past chairman of ASTM C9-64, member of ASTM D18-11, former director of the ADSC-IAFD and former trustee of the Deep Foundations Institute. He is also past chairman of the DFI Test and Evaluation committee, and currently serves on the board of the DFI Educational Trust.


Vernon Hills, Illinois