Emerging Concepts And Products For Highway Systems PDF Download

This annual report presents a summary of progress on investigations conducted as part of the Innovations Deserving Exploratory Analysis (IDEA) program for the National Cooperative Highway Research Program (NCHRP). The names of these projects are as follows: On-line real-time measurement and control of aggregate gradation in asphalt plants; Development of a method for measuring water- stripping resistance of asphalt/siliceous aggregate mixtures; Development of guidelines for low-cost sprayed zinc galvanic anode for control of corrosion of reinforcing steel in marine bridge substructures; Exploring the feasibility of replacing latex with asphalt emulsion for use in bridge deck overlays; Magnitic resonance for in situ determination of asphalt aging and moisture content; Excogitated composite multifunctional layer for pavement systems; Strategy for coating structural steel without stringent blasting regulations; Conservation traffic control load switch; Corrosion-resistant steel reinforcing bars; Metallic coating for corrosion protection of steel rebars; Rehabilitation of steel bridges through application of advanced composite materials; Advanced testing of an automatic non-destructive evaluation system for highway pavement surface condition assessment; New additive for improved durability of concrete and prevention of reinforcing corrosion; Unreinforced, centrally prestressed concrete columns and piles; A road crew portable laser warning system concept development and demonstration; Laser removal of paint on pavement; Development of a self- contained portable device for SHRP binder testing: Field QC/QA; Development of new principles of design of tools for repair and removal of pavements based on the effect of lateral propogation of cracks under contact loading.