Nondestructive Concrete Characterization System

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-13-C-0005
Agency Tracking Number: A12A-013-0200
Amount: $99,968.00
Phase: Phase I
Program: STTR
Awards Year: 2013
Solicitation Year: 2012
Solicitation Topic Code: A12a-T013
Solicitation Number: 2012.A
Small Business Information
NLA Diagnostics LLP
2118 Water Ridge Parkway, Suite 275, Charlotte, NC, -
DUNS: 830796509
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mohammad Pour-Ghaz
 Assistant Professor
 (919) 515-2235
 mpourgh@ncsu.edu
Business Contact
 W. Webster
Title: Principal&CEO
Phone: (704) 307-2443
Email: wrwebster@nlad.us.com
Research Institution
 North Carolina State University
 Mohammad Pour-Ghaz
 2414 Campus Shore Drive
Campus Box 7533
Raleigh, NC, 27695-7533
 (919) 515-2235
 Nonprofit college or university
Abstract
During covert operations, the U.S. Army may be required to breach a concrete structure using a controlled explosion. When choosing the most effective charge size and placement, it is vital to perform a rapid field assessment of the material and structural properties of the target structure. However, recent advances in manufacturing high strength concrete materials (such as Ductal) may increase the uncertainty of these assessment methods. Therefore, the Army is seeking a non-destructive evaluation (NDE) system which can connect with currently fielded Army systems and identify the following required information: compressive strength of in-situ concrete from 3 ksi to 30 ksi within +/- 3 ksi; wall thickness up to 6 ft with an accuracy of 1 ft; presence and location of metal substructure (such as steel reinforcement) within 1ft from the wall surface; and presence of fiber reinforcement. This project will utilize the commercially available NLA RECON (manufactured by NLA Diagnostics, LLC), which is rugged, portable, and a field-ready NDE system. The NLA RECON will utilize ultrasonic pulse velocity, impact-echo, pulse-echo, and ultrasonic attenuation to meet or exceed the Army"s requirements. Tests will be performed on a selected set of concrete samples, built by North Carolina State University.

* information listed above is at the time of submission.

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