PMSS Project Details

Project ID:	FHWA-PROJ-12-0005
Project Name:	Feasibility of Using Surface Resistivity of Concrete for Measuring Permeability
Status:	Proposed
Contact:	Last Name: Ardani First Name: Ahmad Telephone: 202-493-3422 E-mail: ahmad.ardani@dot.gov
Organization:	Federal Highway Administration - Turner-Fairbank Highway Research Center (TFHRC)
Office:	Office of Infrastructure Research and Development
Team:	Pavement Materials Team
Roadmap/Focus area(s):	Infrastructure Research and Technology Strategic Plan and Roadmap
Project Findings:	N/A
Project Description:	Performing Surface Resistivity (SR) is much quicker than the traditionally used Rapid Chloride Permeability Test (RCPT), and requires less labor. It is also portable and less expensive than the RCPT. This study will look into establishing a correlation between these two devices
Laboratories:	Concrete Laboratory
Start Date:	January 5, 2012
End Date:	December 28, 2012
Funding Amount:	$75,000.00
FHWA Program Name:	Innovative Bridge Research and Deployment
Goals:	The key project objective is to establish and validate a correlation between Surface Resistivity (SR) and the Rapid Chloride Permeability Test (RCPT) for measuring permeability.
Project Type:	Onsite
Background Information:	The surface resistivity test method consists of measuring the resistivity of a concrete cylinder with Wenner probe array. An alternating current (AC) potential difference is applied in the outer pins of the Wenner array, generating current flow in the concrete. The potential difference generated by this current is measured by the two inner probes. The current used and potential obtained, along with the area affected, are used to calculate the resistivity of the concrete. The resistivity, in Ohms-cm, has been found to be related to the resistance of the specimen to chloride ion penetration
Test Methodology:	Using Wenner probe array in measuring permeability of saturated concrete cylinder
Other Information:	Data not yet available
Partners:	Data not yet available
More Information URL(s):
Fieldtest:	Data not yet available
Expected Benefits:	The expected benefit is a faster and less expensive way of measuring permeability.
Deliverables:	Name: Application of Surface Resistivity (SR) for Measuring Permeability in Concrete Product Type(s): Research report, Techbrief Description: This test method measures the electrical resistivity of concrete samples as a rapid indication of their resistance to chloride ion penetration. Audiences: Concrete industry, Federal Turner-Fairbank Highway Research Center staff, Pavement engineers, Researchers Secondary Audiences: , Design engineers, Portland cement concrete pavement (PCCP) contractors
Related URL(s):
FHWA Topics:	Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC)
TRT Terms:	Permeability, concrete cylinder
FHWA Disciplines:	Pavement and Materials
Subject Areas:	Research Pavements Materials