Search ASTM
A01 STEEL, STAINLESS STEEL AND RELATED ALLOYS A04 IRON CASTINGS A05 METALLIC-COATED IRON AND STEEL PRODUCTS B01 ELECTRICAL CONDUCTORS B05 COPPER AND COPPER ALLOYS B07 LIGHT METALS AND ALLOYS C01 CEMENT C04 VITRIFIED CLAY PIPE C07 LIME AND LIMESTONE C09 CONCRETE AND CONCRETE AGGREGATES C11 GYPSUM AND RELATED BUILDING MATERIALS AND SYSTEMS C12 MORTARS AND GROUTS FOR UNIT MASONRY C13 CONCRETE PIPE C14 GLASS AND GLASS PRODUCTS C15 MANUFACTURED MASONRY UNITS C16 THERMAL INSULATION C17 FIBER-REINFORCED CEMENT PRODUCTS C18 DIMENSION STONE C21 CERAMIC WHITEWARES AND RELATED PRODUCTS C24 BUILDING SEALS AND SEALANTS C27 PRECAST CONCRETE PRODUCTS D01 PAINT AND RELATED COATINGS, MATERIALS, AND APPLICATIONS D04 ROAD AND PAVING MATERIALS D07 WOOD D08 ROOFING AND WATERPROOFING D09 ELECTRICAL AND ELECTRONIC INSULATING MATERIALS D11 RUBBER D14 ADHESIVES D18 SOIL AND ROCK D20 PLASTICS D35 GEOSYNTHETICS E05 FIRE STANDARDS E06 PERFORMANCE OF BUILDINGS E33 BUILDING AND ENVIRONMENTAL ACOUSTICS E36 ACCREDITATION & CERTIFICATION E57 3D IMAGING SYSTEMS E60 SUSTAINABILITY F01 ELECTRONICS F06 RESILIENT FLOOR COVERINGS F13 PEDESTRIAN/WALKWAY SAFETY AND FOOTWEAR F16 FASTENERS F17 PLASTIC PIPING SYSTEMS F33 DETENTION AND CORRECTIONAL FACILITIES F36 TECHNOLOGY AND UNDERGROUND UTILITIES G03 WEATHERING AND DURABILITY A01 STEEL, STAINLESS STEEL AND RELATED ALLOYS C01 CEMENT C09 CONCRETE AND CONCRETE AGGREGATES D02 PETROLEUM PRODUCTS, LIQUID FUELS, AND LUBRICANTS D03 GASEOUS FUELS D04 ROAD AND PAVING MATERIALS D15 ENGINE COOLANTS AND RELATED FLUIDS D18 SOIL AND ROCK D24 CARBON BLACK D35 GEOSYNTHETICS E12 COLOR AND APPEARANCE E17 VEHICLE - PAVEMENT SYSTEMS E21 SPACE SIMULATION AND APPLICATIONS OF SPACE TECHNOLOGY E36 ACCREDITATION & CERTIFICATION E57 3D IMAGING SYSTEMS F03 GASKETS F07 AEROSPACE AND AIRCRAFT F09 TIRES F16 FASTENERS F25 SHIPS AND MARINE TECHNOLOGY F37 LIGHT SPORT AIRCRAFT F38 UNMANNED AIRCRAFT SYSTEMS F39 AIRCRAFT SYSTEMS F41 UNMANNED MARITIME VEHICLE SYSTEMS (UMVS) F44 GENERAL AVIATION AIRCRAFT F45 DRIVERLESS AUTOMATIC GUIDED INDUSTRIAL VEHICLES
Bookmark and Share

UpDate

UpDate

Low Temperature Asphalt Binder System

A proposed new ASTM International standard will provide an effective low temperature performance graded asphalt binder system using dynamic shear rheometry. WK45135, Test Method for Determining the Low Temperature Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR), is being developed by Subcommittee D04.44 on Rheological Tests, part of ASTM International Committee D04 on Road and Paving Materials

The proposed test method, which is also known as 4-mm DSR, will enable DSR measurements as low as -40˚C, thus allowing for low-temperature specification parameters such as m-value and creep stiffness.

According to Michael Farrar, lead engineer, Western Research Institute, an advantage of the proposed standard is that the test requires only 25 mg of asphalt. This smaller sample size--compared to bending beam rheometer size--and low-temperature capabilities opens the way for new “spin-off” applications of 4-mm DSR, including specification testing of asphalt binder, emulsion residue and crack sealant.

Stacy Glidden, Mathy Construction Co., and a D04 member, says that primary users of the standard will be specifying agencies such as materials laboratories at state departments of transportation, refineries and emulsion and asphalt crack sealant suppliers.

All interested parties are invited to contribute to the ongoing development of WK45135. D04.44 is particularly interested in having asphalt rheology laboratories around the world participate in upcoming round robin testing.

CONTACT Technical Information: Stacy Glidden, Mathy Construction Co. • Onalaska, Wis. • Phone: 608-779-6352 • Email: stacy.glidden@mteservices.com • Michael J. Farrar, Western Research Institute • Laramie, Wyo. • Phone: 307-721-2405 | ASTM Staff: Daniel Smith • Phone: 610-832-9727 | Upcoming Meeting: June 24-26 • June Committee Week • Toronto, Ontario, Canada

This article appears in the issue of Standardization News.