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Laboratory Evaluation Of Pavement Surface Texture Characteristics In Relation To Skid Resistance
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Book Synopsis Laboratory Evaluation of Pavement Surface Texture Characteristics in Relation to Skid Resistance by : S. H. Dahir
Download or read book Laboratory Evaluation of Pavement Surface Texture Characteristics in Relation to Skid Resistance written by S. H. Dahir and published by . This book was released on 1972 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide for Pavement Friction written by and published by AASHTO. This book was released on 2008 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.
Book Synopsis Evaluation of Pavement Surface Texture by : James C. Wambold
Download or read book Evaluation of Pavement Surface Texture written by James C. Wambold and published by . This book was released on 1984 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: "It is generally agreed that the skid resistance of a pavement is controlled by the surface texture characteristics. Therefore, by measuring the relevant parameters describing texture, or by measuring a physical process dependent on texture, regression techniques can be used to relate skid resistance to the chosen texture parameter or process. Two scales of texture are of particular importance: microtexture (small-scale asperities) and macrotexture (large-scale asperities). This report describes work performed to: (1) review candidate macrotexture and microtexture measurement methods that can be made at highway speeds (at or above 40 mph), which are presently used or have potential for use in pavement texture measurement; (2) design and build a prototype of the most promising method; (3) evaluate the effects of pavement surface texture on skid resistance; and (4) investigate non-friction-related effects of pavement surface texture. A prototype noncontact vision system which takes texture measurements at highway speeds was developed, and several improvements were made to upgrade the system to provide an advanced-operational prototype. Both hardware and software enhancements have yielded a texture measurement system that is a fast, efficient, and reliable way of obtaining pavement macrotexture data"--Technical report documentation p.
Book Synopsis Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields by : Inge Hoff
Download or read book Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields written by Inge Hoff and published by CRC Press. This book was released on 2021-11-10 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovations in Road, Railway and Airfield Bearing Capacity – Volume 1 comprises the first part of contributions to the 11th International Conference on Bearing Capacity of Roads, Railways and Airfields (2022). In anticipation of the event, it unveils state-of-the-art information and research on the latest policies, traffic loading measurements, in-situ measurements and condition surveys, functional testing, deflection measurement evaluation, structural performance prediction for pavements and tracks, new construction and rehabilitation design systems, frost affected areas, drainage and environmental effects, reinforcement, traditional and recycled materials, full scale testing and on case histories of road, railways and airfields. This edited work is intended for a global audience of road, railway and airfield engineers, researchers and consultants, as well as building and maintenance companies looking to further upgrade their practices in the field.
Book Synopsis Evaluation of Pavement Friction Characteristics by : John Jewett Henry
Download or read book Evaluation of Pavement Friction Characteristics written by John Jewett Henry and published by Transportation Research Board. This book was released on 2000 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis report will be of interest to pavement design, construction, management, and research engineers, highway safety officials, and others concerned with pavement friction characteristics. It describes the current state of the practice and discusses the methods used for evaluating wet pavement friction characteristics of new and restored pavements. This synthesis reviews models used for measuring and evaluating friction and texture, causes for friction changes over time, and aggregate and mix design to provide adequate friction. Also presented are construction and surface restoration practices for providing good pavement surface characteristics. In addition, considerations of noise and ride quality are discussed when compromise may be required.
Book Synopsis Laboratory Evaluation of Surface Wear and Skid Resistance Properties for Portland Cement Concrete Pavements by : Tommy Allen Cahoon
Download or read book Laboratory Evaluation of Surface Wear and Skid Resistance Properties for Portland Cement Concrete Pavements written by Tommy Allen Cahoon and published by . This book was released on 1975 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pavement Surface Characteristics and Materials by : C. M. Hayden
Download or read book Pavement Surface Characteristics and Materials written by C. M. Hayden and published by ASTM International. This book was released on 1982 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FHWA Publications by : United States. Federal Highway Administration
Download or read book FHWA Publications written by United States. Federal Highway Administration and published by . This book was released on 1984 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Surface Characteristics of Roadways by : W. E. Meyer
Download or read book Surface Characteristics of Roadways written by W. E. Meyer and published by ASTM International. This book was released on 1990 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pavement Surface Texture: Significance and Measurement. Volume II - Comprehensive Report. Final Report by : James C. Wambold
Download or read book Pavement Surface Texture: Significance and Measurement. Volume II - Comprehensive Report. Final Report written by James C. Wambold and published by . This book was released on 1984 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Federal Highway Administration. Offices of Research and Development Publisher : ISBN 13 : Total Pages :258 pages Book Rating :4.3/5 (91 download)
Book Synopsis Report No. FHWA-RD. by : United States. Federal Highway Administration. Offices of Research and Development
Download or read book Report No. FHWA-RD. written by United States. Federal Highway Administration. Offices of Research and Development and published by . This book was released on 1974 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Skid Resistance and Road-Surface Texture by : H. Augustin
Download or read book Skid Resistance and Road-Surface Texture written by H. Augustin and published by . This book was released on 1990 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most important factor resulting from the investigation of the effects of road-surface texture characteristics on skid resistance is the technological consequences with a view to the composition of the wearing course. In the course of this work, qualitative data were obtained and evaluated, which shall later be supplemented by quantitative data, about the coefficient of friction measured with the locked wheel on the one hand and through tracings of the surfaces of cores and laboratory samples on the other hand. The tracings were carried out with a device that has a measuring accuracy of ±5 ?m and a step length of 12.5 ?m. To investigate the time-dependent changes of the road-surface texture under traffic, tests were carried out with a polishing simulator. Through the tracing of selected profiles and the statistical evaluation of the results before and after polishing, comparisons can be made with other existing systems for the measurement of the surface texture as well as prescriptions for new technological demands on materials for the construction of wearing courses. As a result of these investigations, the polishing test according to the British Standard Polished Stone Value (PSV) has been made obligatory for Austria.
Book Synopsis Surface Texture Versus Skidding by :
Download or read book Surface Texture Versus Skidding written by and published by ASTM International. This book was released on with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Highway Safety Literature by : United States. National Highway Safety Bureau
Download or read book Highway Safety Literature written by United States. National Highway Safety Bureau and published by . This book was released on 1969 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of a 5-volume set, each covering a broad subject, which cumulates annually all citations that appeared during the year in: Highway safety literature.
Book Synopsis Laboratory Study of Microtexture-Related Skid Resistance Characteristics of Concrete Pavement Materials by : TF. Fwa
Download or read book Laboratory Study of Microtexture-Related Skid Resistance Characteristics of Concrete Pavement Materials written by TF. Fwa and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports the results of a laboratory test program conducted to study the variations of microtexture-related skid resistance of concrete materials with moisture condition, measurement temperature, and surface polishing. The materials used for concrete pavement construction in Singapore were studied. Surface wetting was found to produce a surface-wet frictional resistance considerably lower than the initial surface-dry value. However, neither the surface-wet nor surface-dry measurement was affected by the degree of moisture saturation of the materials tested. Surface temperature had a strong influence on the results of surface-wet tests, but not the surface-dry tests. The temperature-dependent variations was highly correlated to either measurement temperature or viscosity of water, always showing a coefficient of correlation exceeding 0.94 in absolute value. Polishing had the effect of reducing both surface-wet and surface-dry resistance. However, cement mortar specimens were found to respond differently from granite and steel slag aggregates due to differences of their surface wear behaviors in the process of polishing.
Download or read book Highway Safety Literature written by and published by . This book was released on 1970 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laboratory Evaluation of Friction Loss and Compactability of Asphalt Mixtures by :
Download or read book Laboratory Evaluation of Friction Loss and Compactability of Asphalt Mixtures written by and published by . This book was released on 2012 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study aimed to develop prediction models for friction loss and laboratory compaction of asphalt mixtures. In addition, the study evaluated the effect of compaction level and compaction method on skid resistance and the internal structure of asphalt mixtures. The predictive model for friction loss was developed based on parameters that describe aggregate texture and angularity before and after polishing, aggregate gradation, and polishing cycles in the laboratory. Squared-shape slabs of asphalt mixtures were prepared in the laboratory using a linear kneading compactor and polished using a wheel-polishing device. The frictional characteristics were measured after different intervals of polishing cycles. Mixtures with coarser aggregate gradation were found to have better skid resistance than those with fine aggregate gradation. The friction loss model was found to correlate very well with the experimental measurements. The predictive model for laboratory compaction of asphalt mixtures was developed based on parameters that describe aggregate shape characteristics, aggregate gradation, binder content, and binder properties at compaction temperatures. The researchers executed intensive laboratory experiments to quantify the effect of these parameters on the compaction of asphalt mixture in the laboratory. Two models that describe slope and intercept of the laboratory compaction curves of asphalt mixtures were developed. These models showed strong correlations between the predicted values and the measured ones. These models provide essential inputs to quantify the compaction effort needed to compact asphalt mixtures. In the last phase of this study, the researchers evaluated the effect of compaction level and compaction method on skid resistance and internal structure of asphalt pavements. The vibratory roller was found to yield a smoother surface than the static roller. In addition, the results confirmed that the vibratory roller was more effective in reducing the air voids than the static roller. Moreover, the test sections compacted using the vibratory roller had more uniform air void distribution compared to the test sections compacted using the static roller.
