A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Initial Assessment of TxDOT Binder Quality Assurance Program
Most state departments of transportation (DOT) maintain asphalt binder quality assurance (QA) programs to ensure that asphalt binders used in the construction of their road system meet specifications stipulated for each project. TxDOT samples and approves asphalt materials at the source and utilizes these materials in highway projects without consideration of possible changes in properties that may occur between production and use during construction. Historic concern and limited recent data indicate that binder properties do change, contributing to difficulties during construction operations and poor performance. The primary goal of this study is to evaluate the current TxDOT binder QA program and recommend revisions as necessary toward improving quality. This interim report documents an initial assessment of the current program based on (1) an extensive information search and review that included two detailed surveys of TxDOT districts and nine other state DOTs and (2) partial results from a comprehensive laboratory testing program that simulated factors that may affect changes in binder properties prior to use. Preliminary recommendations that will be evaluated as the project continues include performing a more detailed and comprehensive evaluation of the current binder QA program and implementing revisions in terms of a total binder quality system under the direction of a quality manager.
Initial Assessment of TxDOT Binder Quality Assurance Program
Most state departments of transportation (DOT) maintain asphalt binder quality assurance (QA) programs to ensure that asphalt binders used in the construction of their road system meet specifications stipulated for each project. TxDOT samples and approves asphalt materials at the source and utilizes these materials in highway projects without consideration of possible changes in properties that may occur between production and use during construction. Historic concern and limited recent data indicate that binder properties do change, contributing to difficulties during construction operations and poor performance. The primary goal of this study is to evaluate the current TxDOT binder QA program and recommend revisions as necessary toward improving quality. This interim report documents an initial assessment of the current program based on (1) an extensive information search and review that included two detailed surveys of TxDOT districts and nine other state DOTs and (2) partial results from a comprehensive laboratory testing program that simulated factors that may affect changes in binder properties prior to use. Preliminary recommendations that will be evaluated as the project continues include performing a more detailed and comprehensive evaluation of the current binder QA program and implementing revisions in terms of a total binder quality system under the direction of a quality manager.
Initial Assessment of TxDOT Binder Quality Assurance Program
A. Epps (author) / C. Spiegelman (author) / E. Park (author) / E. Arambula (author) / T. Ahmed (author)
2001
134 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Transportation & Traffic Planning , Transportation , Road Transportation , Asphalt binders , Road construction , Quality assurance , Evaluation , Texas , Highway construction , Literature reviews , Quality control , Performance properties , Models , Data analysis , Recommendations , Laboratory programs
Assessment of the TxDOT Binder Quality Assurance Program
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