Download or read book Maximum Specific Gravity of Bituminous Mixtures by Vacuum Saturation Procedure written by James M. Rice and published by . This book was released on 1957 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The laboratory of the National Crushed Stone Assn. has long been concerned with the specific gravity of aggregates for bituminous mixtures. About ten years ago, a limited study was undertaken in which four samples of coarse aggregate were coated with asphalt by dipping. The results indicated that the aggregates absorbed some asphalt, but the asphalt absorption was less than water absorption. Therefore, neither the bulk nor the apparent specific gravity values of the aggregate were applicable for computing the theoretical maximum density of a bituminous mix. In 1951, experiments were begun with the direct measurement of voids in compacted specimens by use of an air meter such as is used for measuring entrained air in concrete (1). While the equipment used was not particularly suited for this application, the results were encouraging. Still we were not completely satisfied with this procedure because there was always some doubt that all of the voids were being measured. The vacuum saturation procedure was first used in connection with the air meter tests on compacted specimens. This test was performed with the air meter chamber filled with water; thus, there was a possibility that the test specimen was absorbing some water while the equipment was being prepared. In order to minimize this source of error, specimens were initially saturated with water after evacuation of air. With porous mixtures it was found that this procedure filled practically all of the measurable voids.

Download or read book Density Absorption and Specific Gravity Tests of Aggregates Bituminous Materials Bituminous Mixtures and Surfaces Annotated written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1960 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on Specific Gravity of Bituminous Coated Agregates written by American Society for Testing Materials and published by . This book was released on 1957 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Test Method for Maximum Specific Gravity and Density of Asphalt Mixtures Using Automatic Vacuum Sealing Method written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Statistical Approach to Quality Control in Highway Construction written by United States. Bureau of Public Roads and published by . This book was released on 1965 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Density Absorption and Specific Gravity Tests of Aggregates Bituminous Mixtures and Surfaces written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1960 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hot mix bituminous paving manual written by and published by . This book was released on 1985 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Modified Procedure for Measuring the Maximum Specific Gravity of Bituminous Paving Mixtures written by I. Ishai and published by . This book was released on 1979 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accurate measurement of the maximum specific gravity of bituminous paving mixtures Gmm is needed for a reliable air voids analysis of the mixtures in the design and control phases. Since most actual bituminous mixtures combine absorptive aggregates, some difficulties have been encountered with the use of some current procedures for measuring Gmm. This paper presents a procedure for measuring the maximum specific gravity with the use of methanol. The good wetting ability of the methanol, together with its insignificant dissolvent characteristic, enables it to be used as a volumetric liquid for realistic measurements of Gmm. These properties eliminate the difficulties in expelling the trapped air bubbles even without vacuum as well as ensure almost no asphalt dissolution and thus no penetration of liquid inside the aggregate surface voids that are impermeable to asphalt. In general, the test was found to be fast and simple, with highly repeatable results.

Download or read book Pavement Engineering written by Rajib B. Mallick and published by CRC Press. This book was released on 2017-10-16 with total page 747 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement Engineering will cover the entire range of pavement construction, from soil preparation to structural design and life-cycle costing and analysis. It will link the concepts of mix and structural design, while also placing emphasis on pavement evaluation and rehabilitation techniques. State-of-the-art content will introduce the latest concepts and techniques, including ground-penetrating radar and seismic testing. This new edition will be fully updated, and add a new chapter on systems approaches to pavement engineering, with an emphasis on sustainability, as well as all new downloadable models and simulations.

Download or read book Public Roads written by and published by . This book was released on 1964 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation and Prevention of Water Damage to Asphalt Pavement Materials written by Byron E. Ruth and published by ASTM International. This book was released on 1985 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic Vacuum Sealing Method written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Density Absorption and Specific Gravity Tests of Aggregates Bituminous Materials Bituminous Mixtures and Surfaces Annotated written by National Research Council (U.S.). Highway Research Board. Committee on Correlation of Density and Stability Tests of Bituminous Mixtures with Service Behavior and published by . This book was released on 1960 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bituminous Paving Mixtures written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1955 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of variations in characteristics and gradations of aggregates and effects of variation in bitumen content and characteristics of bitumen on physical properties of mixtures are presented. Practices in designing mixtures, methods of tests of mixtures, mixture components, and surfaces are included.

Download or read book Bibliography written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1967 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bituminous Materials and Mixtures written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1963 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eight reports on Bituminous materials and mixtures for the 42nd Highway Research Board Annual Meeting, January 7-11, 1963.

Download or read book Annual Book of ASTM Standards written by American Society for Testing and Materials and published by . This book was released on 1986 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: A compilation of all ASTM standards issued each year.