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Use Of Ndt Equipment For Construction Quality Control Of Hot Mix Asphalt Pavements
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Book Synopsis Use of NDT Equipment for Construction Quality Control of Hot Mix Asphalt Pavements by :
Download or read book Use of NDT Equipment for Construction Quality Control of Hot Mix Asphalt Pavements written by and published by . This book was released on 2006 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of the study has been to evaluate the utility of seismic methods in the quality management of the hot mix asphalt layers. Procedures are presented to measure the target field moduli of hot mix asphalt (HMA) with laboratory seismic methods, conduct field tests with the Portable Seismic Pavement Analyzer (PSPA) in the field, validate the results in the laboratory with seismic tests on extracted cores and determine the design modulus from measured values. This report contains the results of an effort to address the issues related to the implementation of the recommended methods and devices in the day-to-day operation of the pavement community (in general) and pavements managed by the Arizona Department of Transportation (ADOT). Ten sites throughout Arizona with different pavement conditions and structures were tested between August and December 2005. The results are summarized in this report. Based on the results presented, the combination of the lab and field seismic methods is a viable tool for the quality management of HMA layers and can be easily implemented by ADOT. In addition, performing the simplified seismic laboratory and field tests along with more traditional tests may result in a database that can be used to smoothly unify the design procedures with pavement evaluation.
Book Synopsis NDT Technology for Quality Assurance of HMA Pavement Construction by : Harold L. Von Quintus
Download or read book NDT Technology for Quality Assurance of HMA Pavement Construction written by Harold L. Von Quintus and published by Transportation Research Board. This book was released on 2009 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program
Author :ASTM Committee D-4 on Road and Paving Materials Publisher :ASTM International ISBN 13 :0803120249 Total Pages :147 pages Book Rating :4.8/5 (31 download)
Book Synopsis Quality Management of Hot Mix Asphalt by : ASTM Committee D-4 on Road and Paving Materials
Download or read book Quality Management of Hot Mix Asphalt written by ASTM Committee D-4 on Road and Paving Materials and published by ASTM International. This book was released on 1996 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supporting Materials for NCHRP Report 626 by : Harold L. Von Quintus
Download or read book Supporting Materials for NCHRP Report 626 written by Harold L. Von Quintus and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sustainability Issues in Civil Engineering by : G.L. Sivakumar Babu
Download or read book Sustainability Issues in Civil Engineering written by G.L. Sivakumar Babu and published by Springer. This book was released on 2016-11-23 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation on sustainability issues in civil engineering comprises contributions from international experts who have been working in the area of sustainability in civil engineering. Many of the contributions have been presented as keynote lectures at the International Conference on Sustainable Civil Infrastructure (ICSCI) held in Hyderabad, India. The book has been divided into core themes of Sustainable Transportation Systems, Sustainable Geosystems, Sustainable Environmental and Water Resources and Sustainable Structural Systems. Use of sustainability principles in engineering has become an important component of the process of design and in this context, design and analysis approaches in civil engineering are being reexamined to incorporate the principles of sustainable designs and construction in practice. Developing economies are on the threshold of rapid infrastructure growth and there is a need to compile the developments in various branches of civil engineering and highlight the issues. It is this need that prompted the composition of this book. The contents of this book will be useful to students, professionals, and researchers working on sustainability related problems in civil engineering. The book also provides a perspective on sustainability for practicing civil engineers who are not directly researching the problems but are affected by the concerns in the course of their profession. The book can also serve to highlight to policy makers and governing bodies the need to have a mandate for sustainable infrastructural development.
Book Synopsis Quality Assurance Specification Review for Hot Mix Asphalt and Structural Concrete by : Chuck E. Hughes
Download or read book Quality Assurance Specification Review for Hot Mix Asphalt and Structural Concrete written by Chuck E. Hughes and published by . This book was released on 2000 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report includes three parts: (1) Final Report for Quality Assurance Specifications Review dated May 2000; (2) Addendum to the Final Report dated December 2000; and (3) Draft Construction Manual and Inspection Guidelines dated May 2000. The study tasks included a detailed analysis of the quality assurance (QA) special provision, evaluation of Department and Contractors risks, examination of practice of using Contractors tests results for acceptance, guidelines for effective use of QA specifications by field inspection staff, need for adjustments to material specification limits, interviews with Department and Contractor personnel and the impact of recommended changes to the Contractors.
Book Synopsis Assessment of Nondestructive Testing Technologies for Quality Control/Quality Assurance of Asphalt Mixtures by : Shibin Lin
Download or read book Assessment of Nondestructive Testing Technologies for Quality Control/Quality Assurance of Asphalt Mixtures written by Shibin Lin and published by . This book was released on 2015 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt pavements suffer various failures due to insufficient quality within their design lives. The American Association of State Highway and Transportation Officials (AASHTO) Mechanistic-Empirical Pavement Design Guide (MEPDG) has been proposed to improve pavement quality through quantitative performance prediction. Evaluation of the actual performance (quality) of pavements requires in situ nondestructive testing (NDT) techniques that can accurately measure the most critical, objective, and sensitive properties of pavement systems. The purpose of this study is to assess existing as well as promising new NDT technologies for quality control/quality assurance (QC/QA) of asphalt mixtures. Specifically, this study examined field measurements of density via the PaveTracker electromagnetic gage, shear-wave velocity via surface-wave testing methods, and dynamic stiffness via the Humboldt GeoGauge for five representative paving projects covering a range of mixes and traffic loads. The in situ tests were compared against laboratory measurements of core density and dynamic modulus. The in situ PaveTracker density had a low correlation with laboratory density and was not sensitive to variations in temperature or asphalt mix type. The in situ shear-wave velocity measured by surface-wave methods was most sensitive to variations in temperature and asphalt mix type. The in situ density and in situ shear-wave velocity were combined to calculate an in situ dynamic modulus, which is a performance-based quality measurement. The in situ GeoGauge stiffness measured on hot asphalt mixtures several hours after paving had a high correlation with the in situ dynamic modulus and the laboratory density, whereas the stiffness measurement of asphalt mixtures cooled with dry ice or at ambient temperature one or more days after paving had a very low correlation with the other measurements. To transform the in situ moduli from surface-wave testing into quantitative quality measurements, a QC/QA procedure was developed to first correct the in situ moduli measured at different field temperatures to the moduli at a common reference temperature based on master curves from laboratory dynamic modulus tests. The corrected in situ moduli can then be compared against the design moduli for an assessment of the actual pavement performance. A preliminary study of microelectromechanical systems- (MEMS)-based sensors for QC/QA and health monitoring of asphalt pavements was also performed.
Book Synopsis Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements by : Paulo Pereira
Download or read book Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements written by Paulo Pereira and published by Springer Nature. This book was released on with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Description of the Demonstration of European Testing Equipment for Hot Mix Asphalt Pavement by : Timothy Aschenbrener
Download or read book Description of the Demonstration of European Testing Equipment for Hot Mix Asphalt Pavement written by Timothy Aschenbrener and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Colorado Department of Transportation (CDOT) and the Turner-Fairbank Highway Research Center (TFHRC) will be demonstrating some European testing equipment for hot mix asphalt. The equipment includes the French mixer, French gyratory compactor, French plate compactor, French mixer, Hamburg wheel tracking device and the Georgia loaded wheel tester. The advantages, disadvantages, costs and manufacturers are discussed. The joint research project between CDOT and TFHRC to evaluate the equipment and asphalt mixes is included.
Book Synopsis Advances in Measurement Technology and Disaster Prevention by : Yu Chen
Download or read book Advances in Measurement Technology and Disaster Prevention written by Yu Chen and published by CRC Press. This book was released on 2024-03-06 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Measurement Technology and Disaster Prevention focuses on research of measurement technology and the development of disaster prevention and mitigation. The topics include: Measurement in Civil Engineering Disaster Prevention and Mitigation Hydraulic Engineering and Surveying Applications Protection Engineering The book will be of interest to professionals and academics in the above-mentioned areas.
Book Synopsis Quality Control and Quality Assurance of Hot Mix Asphalt Construction in Delaware by : Radha Akkinepally
Download or read book Quality Control and Quality Assurance of Hot Mix Asphalt Construction in Delaware written by Radha Akkinepally and published by . This book was released on 2006 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the mid 60's the Federal Highway Administration began to encourage Departments of Transportation and Contractors toward the use of quality control and quality assurance (QA/QC) specifications, which are statistically based. For example, a QA specification has become an important component in organization commitment to overall quality management. This consists of several activities including: process control, acceptance, and sometimes independent assurance of product (Buttlar and Harrell, 1998). These specifications must be designed to reward good quality, and penalize poor quality. The QA specification, also called as the QA/QC specification, is a combination of end-result specifications and materials and methods specifications. The highway agency is responsible for the acceptance of the product that is produced by the contractor following or implementing quality control in order to produce a product that meets the specifications provided by the highway agency. QA specifications typically are statistically based specifications that use methods such as random sampling in which the properties of the desired products or constructions are described by appropriate statistical parameters, and lot by lot testing. These methods would help the contractor know whether or not the operations are producing the acceptable product. Specifications for the construction of asphalt pavements can be classified into propriety specifications, method-related specifications (MRS), end-result specifications (ERS), performance-related specifications (PRS) or combination of these specifications. Propriety Specification This type of specification refers to some specific product or its equivalent in its clauses; therefore, it limits the competition and often results in a cost increase. Since the buyer has to accept the product as a "black box", the buyer's risk is much higher than in the other three types of specifications Method Specification This type of specification outlines a specific material selection and construction operation process to be followed by the contractor in providing a product. Since there is no explicit product specified, this type of specification allows competition among various suppliers and contractors; but, because the buyer sets the requirements for materials and methods, the owner has to bear the responsibility of the performance. End-Result Specification The final characteristics of the product are stipulated in the end-result specification and the contractor is given considerable freedom in achieving those characteristics. It may specify a limit or range for any given material and/or construction characteristic. The risk for the contractor or agency depends on how the acceptance limits and processes are specified. Performance Related Specification (PRS) This type of specification holds the contractor responsible for the finished product's performance; thus, the contractor assumes considerable risk for the performance of the finished product. This type of specification is often used in conjunction with some type of warranty. The challenge here is to use "true" performance indicators, which may not be available for all materials and processes. Statistical acceptance specifications tend to provide a more defensible approach to specifying HMA construction than the previously used methods of specification (Muench and Mahoney, 2001).
Book Synopsis Testing and Inspection Levels for Hot-mix Asphaltic Concrete Overlays by : Jeffrey S. Russell
Download or read book Testing and Inspection Levels for Hot-mix Asphaltic Concrete Overlays written by Jeffrey S. Russell and published by . This book was released on 2001 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rational Method for Determining Minimum Inspection-levels for Hot-mix Asphalt Overlay Construction by : Galadriel A. Jung
Download or read book Rational Method for Determining Minimum Inspection-levels for Hot-mix Asphalt Overlay Construction written by Galadriel A. Jung and published by . This book was released on 1998 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recommended Performance-related Specification for Hot-mix Asphalt Construction by : Jon A. Epps
Download or read book Recommended Performance-related Specification for Hot-mix Asphalt Construction written by Jon A. Epps and published by Transportation Research Board. This book was released on 2002 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NCHRP Report 626 written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quality Characteristics for Use with Performance Related Specifications for Hot Mix Asphalt by :
Download or read book Quality Characteristics for Use with Performance Related Specifications for Hot Mix Asphalt written by and published by . This book was released on 2004 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This digest summarizes key findings from NCHRP Project 9-15 ... conducted by Fugro Consultants LP ... [and] ... is an abridgement of portions of the final report prepared by Brian M. Killingsworth ...
Book Synopsis Bearing Capacity of Roads, Railways and Airfields by : Andreas Loizos
Download or read book Bearing Capacity of Roads, Railways and Airfields written by Andreas Loizos and published by CRC Press. This book was released on 2017-07-20 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bearing Capacity of Roads, Railways and Airfields includes the contributions to the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields (BCRRA 2017, 28-30 June 2017, Athens, Greece). The papers cover aspects related to materials, laboratory testing, design, construction, maintenance and management systems of transport infrastructure, and focus on roads, railways and airfields. Additional aspects that concern new materials and characterization, alternative rehabilitation techniques, technological advances as well as pavement and railway track substructure sustainability are included. The contributions discuss new concepts and innovative solutions, and are concentrated but not limited on the following topics: · Unbound aggregate materials and soil properties · Bound materials characteritics, mechanical properties and testing · Effect of traffic loading · In-situ measurements techniques and monitoring · Structural evaluation · Pavement serviceability condition · Rehabilitation and maintenance issues · Geophysical assessment · Stabilization and reinforcement · Performance modeling · Environmental challenges · Life cycle assessment and sustainability Bearing Capacity of Roads, Railways and Airfields is essential reading for academics and professionals involved or interested in transport infrastructure systems, in particular roads, railways and airfields.
