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Early Detection Of Joint Distress In Portland Cement Concrete Pavements, Dwayne Harris, Yaghoob Farnam, Robert Spragg, Paul Imbrock, W. Jason Weiss
Early Detection Of Joint Distress In Portland Cement Concrete Pavements, Dwayne Harris, Yaghoob Farnam, Robert Spragg, Paul Imbrock, W. Jason Weiss
JTRP Technical Reports
INDOT (as well as several surrounding states) have observed that certain concrete pavements may show a susceptibility to joint deterioration. Unfortunately, by the time that this joint deterioration is observed it is often too late and costly partial depth repairs are needed. The deterioration is generally occurring in the joint behind the backer rod and joint sealant; as such, it is difficult to detect even if one is standing directly above the joint. This project investigated the use of electrical resistivity and ground penetrating radar as two techniques to detect premature joint deterioration. The thought process was that if the …
Evaluation Of Sealers And Waterproofers For Extending The Life Cycle Of Concrete, Andrew Wiese, Yaghoob Farnam, Wesley A. Jones, Paul Imbrock, Bernie Tao, W. Jason Weiss
Evaluation Of Sealers And Waterproofers For Extending The Life Cycle Of Concrete, Andrew Wiese, Yaghoob Farnam, Wesley A. Jones, Paul Imbrock, Bernie Tao, W. Jason Weiss
JTRP Technical Reports
Concrete pavements represent a large portion of the transportation infrastructure. While the vast majority of concrete pavements provide excellent long-term performance, a portion of these pavements have recently shown premature joint deterioration. Substantial interest has developed in understanding why premature joint deterioration is being observed in jointed portland cement concrete pavements (PCCP). While some have attributed this damage to insufficient air void systems, poor mixture design, or chemical reaction between the salt and the paste, it is the hypothesis of this work that a component of this damage can be attributed to fluid absorption at the joints and chemical reactions …