Appendixes to NCHRP Report 555


Book Description

This document contains appendixes B through E of NCHRP Report 555. The appendixes are as follows: (B) Review of Aggregate Characteristics Affecting Pavement Performance; (C) Image Analysis Methods for Characterizing Aggregate Shape Properties; (D) Test Methods for Measuring Aggregate Characteristics; and (E) Photographs of Aggregate Samples.







Test Methods for Characterizing Aggregate Shape, Texture, and Angularity


Book Description

"TRB's National Cooperative Highway Research Program (NCHRP) Report 555: Test Methods for Characterizing Aggregate Shape, Texture, and Angularity examines a methodology for classifying aggregates based on the distribution of shape, texture, and angularity characteristics. The report also explores a test method that it is appropriate for use in central and field laboratories, which measures shape, texture, and angularity characteristics of aggregates used in hot-mix asphalt, hydraulic cement concrete, and unbound base and subbase layers of pavements. Appendixes for the report were published as NCHRP Web-Only Document 80"--Publisher's description.







NCHRP Report 555


Book Description




Corrosion Study and Implementation Plan for NCHRP Report 597


Book Description

This document contains two appendices to NCHRP Report 597, "Development of a Recommended Practice for Use of Controlled Low-Strength Material in Highway Construction." Appendix A, Corrosion Study, examines the corrosivity of controlled low-strength material (CLSM) on pipelines embedded in it. Appendix E, Implementation Plan, describes several issues and recommended next steps that can help to insure the successful use of the guidance and technology developed under this project.




Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content


Book Description

TRB's National Cooperative Highway Research Program (NCHRP) Report 752: Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content describes proposed revisions to the American Association of State Highway and Transportation Officials (AASHTO) R 35, Superpave Volumetric Design for Hot Mix Asphalt, and AASHTO M 323, Superpave Volumetric Mix Design, to accommodate the design of asphalt mixtures with high reclaimed asphalt pavement contents.




Accelerated Bridge Construction


Book Description

The traveling public has no patience for prolonged, high cost construction projects. This puts highway construction contractors under intense pressure to minimize traffic disruptions and construction cost. Actively promoted by the Federal Highway Administration, there are hundreds of accelerated bridge construction (ABC) construction programs in the United States, Europe and Japan. Accelerated Bridge Construction: Best Practices and Techniques provides a wide range of construction techniques, processes and technologies designed to maximize bridge construction or reconstruction operations while minimizing project delays and community disruption. - Describes design methods for accelerated bridge substructure construction; reducing foundation construction time and methods by using pile bents - Explains applications to steel bridges, temporary bridges in place of detours using quick erection and demolition - Covers design-build systems' boon to ABC; development of software; use of fiber reinforced polymer (FRP) - Includes applications to glulam and sawn lumber bridges, precast concrete bridges, precast joints details; use of lightweight aggregate concrete, aluminum and high-performance steel




Comprehensive Costs of Highway-Rail Grade Crossing Crashes


Book Description

"TRB's National Cooperative Highway Research Program (NCHRP) Report 755: Comprehensive Costs of Highway-Rail Grade Crossing Crashes describes a process for estimating the costs of highway-rail grade crossing crashes. A spreadsheet-based tool to facilitate use of the cost estimation process is available online." --Publisher description.