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Durability Of Saw-Cut Joints In Plain Cement Concrete Pavements, Javier Castro, Wenting Li, Mohammad Pour-Ghaz, Mike Golias, Bernie Tao, Hongfang Sun, William Jason Weiss
Durability Of Saw-Cut Joints In Plain Cement Concrete Pavements, Javier Castro, Wenting Li, Mohammad Pour-Ghaz, Mike Golias, Bernie Tao, Hongfang Sun, William Jason Weiss
JTRP Technical Reports
The objective of this project was to evaluate factors influencing the durability of the joints in portland cement concrete pavement in the state of Indiana. Specifically this work evaluated the absorption of water, the absorption of deicing solutions, the relationship between the degree of saturation and concrete deterioration, and the role of Soy Mehyl Esters as a potential concrete sealant. The aforementioned items were studied in conjunction with the observation of premature joint deterioration in concrete pavements. Previous work by the PI identified that deteriorating joints were observed to frequently have standing water and damaged joint sealant. To better understand …
Variability Analysis Of The Bulk Resistivity Measured Using Concrete Cylinders, Robert P. Spragg, J. Castro, Tommy E. Nantung, M. Paredes, W. Jason Weiss
Variability Analysis Of The Bulk Resistivity Measured Using Concrete Cylinders, Robert P. Spragg, J. Castro, Tommy E. Nantung, M. Paredes, W. Jason Weiss
JTRP Technical Reports
Many agencies are interested in using a rapid test method for measuring the electrical properties of concrete (i.e., the resistivity or conductivity) since the electrical properties can be related to fluid transport (e.g., ion diffusion). The advantage of electrical testing is that it is relatively easy to perform and the test method is relatively fast (less than a minute). Over the last century, many studies have investigated different approaches for measuring electrical properties. This paper describes the variability associated with measuring the bulk resistivity along the longitudinal axis of a cylinder after placing electrodes on either end. A multi-laboratory evaluation …