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In-situ Determination of Pore Solution Resistivity

Award Information
Agency: Department of Transportation
Branch: N/A
Contract: 6913G622C100013
Agency Tracking Number: DOT-21-FH2-001-II
Amount: $999,832.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: 21-FH2
Solicitation Number: 6913G621QSBIR1
Solicitation Year: 2022
Award Year: 2022
Award Start Date (Proposal Award Date): 2022-06-23
Award End Date (Contract End Date): 2024-06-26
Small Business Information
300 E Riverside Dr #630
Austin, TX 78704
United States
DUNS: 081015134
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Andrii Drach
 (603) 957-0196
Business Contact
 Nima KargahOstadi
Title: VP of Research
Phone: (814) 206-4414
Research Institution

This project intends to develop a sensor system that allows in-situ measurement of concrete’s pore solution resistivity, to supplement existing procedures for durability assessment. The innovation includes one or more sensors that are embedded inside concrete and a mobile measuring device to interrogate the sensor.Phase I project will explore candidate body materials for the sensor, manufacturing techniques, optimum sensor geometry/packaging, and the best methods for reading/measuring the sensor output. Phase I will also explore the costs, material availability, manufacturability, scale-up, marketability, technology transfer, and industry implementation of the proposed sensor system. Phase I output is a proof-of-concept report summarizing the above and offering one or more best prototype designs to be produced and tested in Phase II. The report will offer Phase II plans and estimated timeline for the prototype(s) production, accuracy verification, and evaluation by FHWA and State highway agencies. The report will discuss opportunities and obstacles to implementation of the technology.The project team includes Callentis Consulting Group with extensive experience in analysis and simulation of porous media, electrochemistry measurement techniques and pavement engineering, and Penn State University which brings expertise in cementitious materials, electrical property measurements and sensing of concrete, and materials science and polymer engineering.

* Information listed above is at the time of submission. *

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