Project Number Project Title Stage Comments
NCHRP 04-15Corrosion Protection of Prestressing Systems in Concrete BridgesCompleted
NCHRP 04-16Cost and Service Life of Pavement MarkingsCompleted
NCHRP 04-18Design and Evaluation of Large Stone MixturesCompleted
NCHRP 04-19Aggregate Tests Related to Asphalt Concrete Performance in PavementsCompleted
NCHRP 04-19(2)Validation of Performance-Related Tests of Aggregates for Use in Hot-Mix Asphalt PavementsCompleted
NCHRP 04-20Aggregate Tests Related to Performance of Portland Cement ConcreteCompleted
NCHRP 04-20AState of the Art Report and Plan for Research on Aggregates Tests Related to Performance of Portland Cement Concrete PavementsCompleted
NCHRP 04-20BAggregate Tests Related to Performance of Portland Cement Concrete PavementsCompleted
NCHRP 04-20CAggregate Tests Related to Performance of Portland Cement Concrete Pavements: State of the KnowledgeCompleted
NCHRP 04-21Appropriate Use of Waste and Recycled Materials in the Transportation IndustryCompleted
NCHRP 04-22Pavement-Marking Materials: Health, Environmental, and Performance AssessmentCompleted
NCHRP 04-23Performance-Related Tests of Aggregates for Use in Unbound Pavement LayersCompleted
NCHRP 04-24HDPE Pipe Material Specifications and Design RequirementsCompleted
NCHRP 04-25Implementation Plan for Automating Highway-Materials TestingCompleted
NCHRP 04-26Thermoplastic Drainage Pipe, Design and TestingCompletedThe project final report is available as NCHRP Report 631.
NCHRP 04-27Application of Fiber Reinforced Polymer (FRP) Composites to the Highway Infrastructure: Strategic PlanCompleted
NCHRP 04-28Feasibility Study for an All-White Pavement Marking SystemCompleted
NCHRP 04-29Selection of Materials to Optimize Sign PerformanceCompleted
NCHRP 04-30Test Methods for Characterizing Aggregate Shape, Texture, and AngularityCompleted
NCHRP 04-30ATest Methods for Characterizing Aggregate Shape, Texture, and AngularityCompleted
NCHRP 04-31Tests of Recycled Aggregates for Use in Unbound Pavement LayersCompleted
NCHRP 04-32Performance and Quality Control of Corrugated Pipe Manufactured with Recycled Polyethylene ContentCompletedThe project final report is available as NCHRP Report 696.
NCHRP 04-33Procedures for Testing and Evaluating Detectable Warning SystemsCompleted
NCHRP 04-34Application of LADAR in the Analysis of Aggregate CharacteristicsCompleted
NCHRP 04-35Improved Test Methods for Specific Gravity and Absorption of Coarse and Fine AggregateCompleted
NCHRP 04-36Characterization of Cementitiously Stabilized Layers for Use in Pavement Design and AnalysisCompleted
NCHRP 04-37Long-Term Performance of Epoxy Adhesive Anchor SystemsCompletedThe project final report is available as NCHRP Project 757.
NCHRP 04-38Recommended Laboratory Test for Predicting the Initial Retroreflectivity of Pavement Markings from Glass Bead QualityCompletedThe project final report is available as NCHRP Report 743.
NCHRP 04-39Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene ContentCompleted
NCHRP 04-40Reliability-Based Geotechnical Resistance Factors for Axially-Loaded MicropilesActive
NCHRP 04-41Deterioration Rates and Unit Costs for Geotechnical AssetsFinalProject is cancelled