Download or read book Asphalts Asphalt Mixtures and Additives written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1982 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asphalts Asphalt Mixtures and Additives written by and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characteristics of Asphalt Binders written by and published by . This book was released on 1996 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beneficial Effects of Selected Additives on Asphalt Cement Mixes written by D. Y. Lee and published by . This book was released on 1987 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of polyolefins, neoprene, styrene-butadiene-styrene (SBS) block copolymers, styrene-butadiene rubber (SBR) latex, and hydrated lime on two asphalt cements were evaluated. Physical and chemical tests were performed on a total of 16 binder blends. Asphalt concrete mixes were prepared and tested with these modified binders and two aggregates (crushed limestone and gravel), each at three asphalt content levels. Properties evaluated on the modified binders (original and thin-film oven aged) included: viscosity at 25 deg C, 60 deg C and 135 deg C with capillary tube and cone-plate viscometer, penetration at 5 deg C and 25 deg C, softening point, force ductility, and elastic recovery at 10 deg C, dropping ball test, tensile strength, and toughness and tenacity tests at 25 deg C. From these the penetration index, the viscosity-temperature susceptibility, the penetration-viscosity number, the critical low-temperature, long loading-time stiffness, and the cracking temperature were calculated. In addition, the binders were studied with x-ray diffraction, reflected fluorescence microscopy, and high-performance liquid chromatography techniques. Engineering properties evaluated on the 72 asphalt concrete mixes containing additives included: Marshall stability and flow, Marshall stiffness, voids properties, resilient modulus, indirect tensile strength, permanent deformation (creep), and effects of moisture by vacuum-saturation and Lottman treatments. Pavement sections of varied asphalt concrete thicknesses and containing different additives were compared to control mixes in terms of structural responses and pavement lives for different subgrades. Although all of the additives tested improved at least one aspect of the binder/mixture properties, no additive was found to improve all the relevant binder/mixture properties at the same time. On the basis of overall considerations, the optimum beneficial effects can be expected when the additives are used in conjunction with softer grade asphalts.

Download or read book Fiber Additives in Asphalt Mixtures written by Rebecca McDaniel and published by . This book was released on 2015 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 475: Fiber Additives in Asphalt Mixtures summarizes the types of fibers used in asphalt mixtures, their properties, how they are tested, how they are applied, and lab and field performance of the fiber mixes." --

Download or read book Use of Antistripping Additives in Asphaltic Concrete Mixtures written by David G. Tunnicliff and published by Transportation Research Board. This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Asphalt Additives written by and published by . This book was released on 1987 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of VESYS IV computer program to predict effects of asphalt additives on pavement performance.

Download or read book Asphalt and Asphalt Additives written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1992 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asphalt Science and Technology written by Arthur Usmani and published by CRC Press. This book was released on 1997-08-22 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Offers comprehensive, authoritative coverage of the chemistry, technology, and engineering of asphaltic products for paving, road construction, roofing, coatings, adhesives, and batteries. Analyzes microcracking and elucidates the mechanisms of degradation to aid the development of hot melt asphalt and increase longevity."

Download or read book Hot Mix Asphalt Materials Mixture Design and Construction written by and published by . This book was released on 2009 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asphalt Additives in Thick Hot Mixed Asphalt Concrete Pavements written by Joe W. Button and published by . This book was released on 1991 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt concrete field test pavements were placed in District 19 north of Texarkana on US-59/71 in 1987 and 1988 to evaluate the ability of certain asphalt additives to enhance resistance to cracking and rutting. Two 10-inch thick and 0.9 mile (approx.) long test pavements and a similar untreated control section were constructed in the northbound and southbound lanes for a total of 6 field trials. Asphalt additives were incorporated in both the 8-inch base and the overlying 2-inch surface layers. The additives evaluated included Goodyear LPF 5812, Chemkrete-CTI 102, Exxon Polybilt 102, and Styrelf 13. Samples of paving materials including aggregates, asphalts, compacted mixes, and pavement cores were collected, conveyed to the laboratory and tested to provide detailed documentation of their properties.

Download or read book Study of Asphalt Cement Additives and Extenders written by Pavement Management Systems and published by . This book was released on 1983 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Mineral Additives on the Durability of Coating grade Roofing Asphalts written by Sidney H. Greenfeld and published by . This book was released on 1956 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Using Additives and Modifiers in Hot Mix Asphalt written by Ronald L. Terrel and published by . This book was released on 1989 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Introduction to Miscellaneous Hot Mix Asphalt Pavement Processes written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2018-02-01 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers interested in miscellaneous hot mix asphalt pavement processes. Here is what is discussed: 1. ASPHALT STABILIZATION OF SOIL 2. MISCELLANEOUS MIXTURES 3. RESIN MODIFIED PAVEMENT.

Download or read book Superpave Mix Design written by Asphalt Institute and published by . This book was released on 2001-01-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survey for Reactive Blends of Asphalt and Antistripping Additives written by G. W. Maupin and published by . This book was released on 1983 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: When subjected to elevated temperatures, some blends of asphalts and antistripping additives undergo a reaction that causes the additive to be ineffective. The frequency ofoccurrence of reactive asphalt-additive blends used by the Virginia Department of Highways and Transportation was determined to ascertain the level of testing that is necessary to prevent acceptance of their use in asphaltic paving mixtures. Samples of asphalt cement were collected, combined with the two additives used most frequently by the Department, heat treated, and tested. Bottle and stripping tests were used to evaluate the reactivity of the blends. Although approximately 50% of the asphalts reacted with an additive, the reactions were not detrimental when normal additive doses were used. It was concluded that no modifications to the present test procedures and frequency of tests are needed.