The NCC E-News is issued by the National Concrete Pavement Technology Center. The following are covered in more details with links to research and other reports.
• The July 2019 MAP Brief, “Optimized Joint Spacing for Concrete Overlays with and without Structural Fiber Reinforcement,” summarizes field research on optimized joint spacing with and without fibers on low-volume roads.
• The Missouri Department of Transportation polled the National Concrete Consortium group regarding the limits placed on the number of lanes that can be tied and the use of pull-out tests for lane ties.
• A Virginia DOT project investigated the causes of premature repairs failure in continuously reinforced concrete pavement.
• NCHRP Synthesis 525 identifies innovative practices and devices for establishing one-lane traffic control on rural two-lane highways.
• The University of California Pavement Research Center conducted a study with the goal of determining the expected performance life of 4 in. to 7 in. thin bonded concrete overlays of asphalt in California.
• A recent FHWA tech brief outlines approaches commonly used for curing cast-in-place concrete pavements.
• The Midwest Transportation Center at Iowa State University and the U.S. Department of Transportation published an assessment of models to predict pavement performance.
• A recent Minnesota DOT project developed improved guidelines for evaluation of concrete and mortars for partial-depth repairs.
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National Ready Mixed Concrete Association