Recommended Citation
Weiss, J. W., Qiao, C., Isgor, B., & Olek, J. (2020). Implementing rapid durability measure for concrete using resistivity and formation factor (Joint Transportation Research Program Publication No. FHWA/IN/JTRP-2020/08). West Lafayette, IN: Purdue University. https://doi.org/10.5703/1288284317120
DOI
10.5703/1288284317120
Abstract
The durability of in-place concrete is a high priority issue for concrete pavements and bridges. Several studies have been conducted by INDOT to use electrical resistivity as a measure of fluid transport properties. Resistivity is dependent on the chemistry of the cement and supplementary cementitious system used, as such it has been recommended that rather than specifying resistivity it may be more general to specify the formation factor. Samples were tested to establish the current levels of performance for concrete pavements in the state of Indiana. Temperature and moisture corrections are presented and acceptable accelerated aging procedure is presented. A standardized testing procedure was developed (AASHTO TP 119–Option A) resulting in part from this study that provides specific sample conditioning approaches to address pore solution composition, moisture conditioning, and testing procedures. An accelerated aging procedure is discussed to obtain later age properties (91 days) after only 28 days.
Report Number
FHWA/IN/JTRP-2020/08
Keywords
concrete, durability, formation factor, resistivity
SPR Number
4003-1
Performing Organization
Joint Transportation Research Program
Sponsoring Organization
Indiana Department of Transportation
Publisher Place
West Lafayette, IN
Date of this Version
2020