Effectiveness Comparison of TxDOT Quality Control/quality Assurance and Method Specifications - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Effectiveness Comparison of TxDOT Quality Control/quality Assurance and Method Specifications write by Mansour Solaimanian. This book was released on 1998. Effectiveness Comparison of TxDOT Quality Control/quality Assurance and Method Specifications available in PDF, EPUB and Kindle. This purpose of this study was to evaluate the quality of the hot mix asphalt concrete produced under quality control/quality assurance (QC/QA) specification item 3063. During the first phase of this project, conducted between September 1996 and February 1997, an extensive amount of technical information and numerical information was gathered and analyzed. During the second phase of this project, various other activities were carried out, including a survey of other states to assess their approach in developing and implementing QC/QA specifications, a physical survey of QC/QA and non-QC/QA specification projects in Texas, and a limited evaluation of the cost of the projects. This report presents the results, findings, conclusions, and recommendations based on the collected information and on the work performed during the course of this research program.
Alternate Polish Value and Soundness Specifications for Bituminous Coarse Aggregates
Alternate Polish Value and Soundness Specifications for Bituminous Coarse Aggregates - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Alternate Polish Value and Soundness Specifications for Bituminous Coarse Aggregates write by Chien N. Fu. This book was released on 1998. Alternate Polish Value and Soundness Specifications for Bituminous Coarse Aggregates available in PDF, EPUB and Kindle. Polish value and 5-cycle magnesium sulfate soundness are the primary quality requirements in current Texas Department of Transportation (TxDOT) specifications for bituminous coarse aggregate sources in two critical categories - (I) aggregates with high polish value but poor skid performance, and (II) aggregates with low polish value but good performance. This report summarizes the background and deficiencies of the current polish value specification and test procedures.
Synthesis of Highway Practice
Synthesis of Highway Practice - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Synthesis of Highway Practice write by National Cooperative Highway Research Program. This book was released on 2005. Synthesis of Highway Practice available in PDF, EPUB and Kindle.
Evaluation of State Quality Assurance Program Effectiveness
Evaluation of State Quality Assurance Program Effectiveness - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Evaluation of State Quality Assurance Program Effectiveness write by James S. Moulthrop. This book was released on 2012. Evaluation of State Quality Assurance Program Effectiveness available in PDF, EPUB and Kindle. In early 2008, the Federal Highway Administration issued a task order under the Advanced Quality Systems Indefinite Delivery/Indefinite Quantity Contract for a contractor to quantify the effectiveness of State quality assurance (QA) programs. The objective of the study was to develop, apply, and make recommendations for the use of a procedure that transportation departments could use to quantify and improve the effectiveness of existing quality assurance programs. Based on the knowledge and experience of the research team, four State highway agencies (SHAs) were chosen to participate. An introductory project meeting was held in December 2008, but due to personnel problems, only three agencies participated. The goal of the meeting was to discuss the objectives and scope of the project with State representatives and request their input. The three SHAs agreed to provide QA data from construction projects in their State for the team to analyze. Because sufficient data were not available to accomplish the original task, the scope was modified to use an analysis of acceptance procedures included in the agencies' specifications instead of using actual QA data. In summary, four SHA construction specifications were selected for analysis from three SHAs, two for hot mix asphalt (HMA) pavements and two for portland cement concrete (PCC) pavements. The study shows that either the computer program SPECRISK or computer simulation can be used to analyze the statistical risks of most, if not all, specifications. Both HMA pavement specifications and one of the PCC pavement specifications were amenable to analysis by SPECRISK because they are based on percent within limits as the statistical quality measure. The remaining PCC pavement specification was based on averages and had to be analyzed by computer simulation. Probabilistic Optimization for Profit (Prob.O.Prof) was one of the software programs anticipated to be useful in the analysis. However, it required data that were not available and thus could not be used in the analyses. The report includes analysis of the specifications, particularly the risks involved and recommendations for improving areas that are considered unclear or statistically invalid.
Evaluation of State Quality Assurance Program Effectiveness
Evaluation of State Quality Assurance Program Effectiveness - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Evaluation of State Quality Assurance Program Effectiveness write by James S. Moulthrop. This book was released on 2012. Evaluation of State Quality Assurance Program Effectiveness available in PDF, EPUB and Kindle. In early 2008, the Federal Highway Administration issued a task order under the Advanced Quality Systems Indefinite Delivery/Indefinite Quantity Contract for a contractor to quantify the effectiveness of State quality assurance (QA) programs. The objective of the study was to develop, apply, and make recommendations for the use of a procedure that transportation departments could use to quantify and improve the effectiveness of existing quality assurance programs. Based on the knowledge and experience of the research team, four State highway agencies (SHAs) were chosen to participate. An introductory project meeting was held in December 2008, but due to personnel problems, only three agencies participated. The goal of the meeting was to discuss the objectives and scope of the project with State representatives and request their input. The three SHAs agreed to provide QA data from construction projects in their State for the team to analyze. Because sufficient data were not available to accomplish the original task, the scope was modified to use an analysis of acceptance procedures included in the agencies' specifications instead of using actual QA data. In summary, four SHA construction specifications were selected for analysis from three SHAs, two for hot mix asphalt (HMA) pavements and two for portland cement concrete (PCC) pavements. The study shows that either the computer program SPECRISK or computer simulation can be used to analyze the statistical risks of most, if not all, specifications. Both HMA pavement specifications and one of the PCC pavement specifications were amenable to analysis by SPECRISK because they are based on percent within limits as the statistical quality measure. The remaining PCC pavement specification was based on averages and had to be analyzed by computer simulation. Probabilistic Optimization for Profit (Prob. O. Prof) was one of the software programs anticipated to be useful in the analysis. However, it required data that were not available and thus could not be used in the analyses. The report includes analysis of the specifications, particularly the risks involved and recommendations for improving areas that are considered unclear or statistically invalid.
