Evaluation of Lightweight Aggregate for Internal Curing on Concrete Pavement in Kansas [Technical Summary]

US Transportation Collection2022PDFBriefJenkins, AndrewMeggers, David A.Schmiedeke, NicoleKansas Department of Transportation. Bureau of ResearchKansas Department of Transportation. Bureau of ResearchKansasUnited StatesConcrete curingConcrete pavementsDurabilityLaboratory testsLightweight aggregatesKS-22-02Technical SummaryThe purpose of this project and the Internally Cured Concrete (ICC) test section was to evaluate the benefits obtained through internal curing using pre-saturated Lightweight Aggregate (LWA). The pavements will be evaluated to determine if there is a significant reduction in permanent panel warping. Permanent panel warping, caused by excessive moisture loss at the pavement surface during curing, can lead to poor ride quality. Excessive warping can also lead to structural failure of the pavement such as mid-panel cracking, corner breaks, and base pumping. Additional testing was performed to determine any additional benefits to concrete strength and durability.132