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Portland Cement Concrete Pavement Joint Sealant Practices and Performance

Project Details
STATE

NCHRP

SOURCE

TRID

START DATE

09/18/19

END DATE

07/12/21

RESEARCHERS

Jinho Kim, Dan G. Zollinger

SPONSORS

NCHRP, AASHTO, Federal Highway Administration

KEYWORDS

Case studies, Concrete pavements, Construction management, Interviewing, Literature reviews, Pavement joints, Sealing compounds, State departments of transportation, State of the practice, Surveys

LINKS

Project Webpage

Product

Project description

This report compiles and documents information regarding the current state of practice of joint sealing Portland cement concrete (PCC) by state departments of transportation. The objective of this synthesis is to document current practices with PCC pavement joint sealant in new construction and the maintenance protocols of existing joint sealants for PCC pavements. The synthesis documents use of PCC pavement joint sealants, types of materials used for these sealants, and construction methods. It also summarizes the use of data from AASHTO’s National Transportation Product Evaluation Program for PCC pavement joint sealant product approval, inspection and/or acceptance procedures, and evaluation of long-term product performance. Last, the report compiles issues surrounding PCC joint sealant usage or effectiveness, such as water presence or movement and noise contributions, and alternative methods being used in lieu of sealants. Information in this study was acquired through a review of the literature, a survey of representatives of state departments of transportation, and follow-up interviews that informed the development of six case examples regarding joint sealing practices for PCC pavements.
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