SBIR Phase I: Passive Sensor for Lifetime Monitoring of Concrete

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: 0338986
Agency Tracking Number: 0338986
Amount: $99,290.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Advanced Design Consulting, Inc.
126 Ridge Road, Lansing, NY, 14882
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Alexander Deyhim
 (607) 533-3531
Business Contact
 Alexander Deyhim
Phone: (607) 533-3531
Research Institution
This Small Business innovation Research Phase I project proposes to demonstrate the feasibility of using a passive sensor, embedded within concrete, to measure moisture, temperature, and concentrations of chlorides. It will provide critical data for evaluating concrete performance starting with the initial quality control period of freshly mixed or freshly cast concrete, through its useful service life, to the period of deterioration and repair. Data obtained from these sensors should result in longer service life, lower infrastructure costs and the development of more effective means of remediation. The device will be powered and interrogated using radio frequency energy from a distance of over one meter, returning a unique identification number so that data can be correlated with sensor location. Data will be read by frequency analysis of one or more RLC antennas in the device, whose resonance frequencies will be altered by changes in the surrounding material. The initial strength and the service life of concrete used in roadways and its moisture content from the time that it is placed onwards significantly affects bridges. Such a multi-functional sensor can be so pervasively useful because moisture and temperature are the primary drivers for the hydration of portland cement, and are essential factors in the most prevalent deteriorative processes such as damage due to freezing and thawing, alkali-aggregate reaction, sulfate attack or delayed Ettringite formation.

* information listed above is at the time of submission.

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