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 C14 GLASS AND GLASS PRODUCTS C21 CERAMIC WHITEWARES AND RELATED PRODUCTS D01 PAINT AND RELATED COATINGS, MATERIALS, AND APPLICATIONS D06 D09 ELECTRICAL AND ELECTRONIC INSULATING MATERIALS D10 PACKAGING D11 RUBBER D12 SOAPS AND OTHER DETERGENTS D13 TEXTILES D14 ADHESIVES D15 ENGINE COOLANTS AND RELATED FLUIDS D20 PLASTICS D21 POLISHES D31 LEATHER E12 COLOR AND APPEARANCE E18 SENSORY EVALUATION E20 TEMPERATURE MEASUREMENT E35 PESTICIDES, ANTIMICROBIALS, AND ALTERNATIVE CONTROL AGENTS E41 LABORATORY APPARATUS E53 ASSET MANAGEMENT E57 3D IMAGING SYSTEMS F02 FLEXIBLE BARRIER PACKAGING F05 BUSINESS IMAGING PRODUCTS F06 RESILIENT FLOOR COVERINGS F08 SPORTS EQUIPMENT, PLAYING SURFACES, AND FACILITIES F09 TIRES F10 LIVESTOCK, MEAT, AND POULTRY EVALUATION SYSTEMS F11 VACUUM CLEANERS F13 PEDESTRIAN/WALKWAY SAFETY AND FOOTWEAR F14 FENCES F15 CONSUMER PRODUCTS F16 FASTENERS F24 AMUSEMENT RIDES AND DEVICES F26 FOOD SERVICE EQUIPMENT F27 SNOW SKIING F37 LIGHT SPORT AIRCRAFT F43 LANGUAGE SERVICES AND PRODUCTS F44 GENERAL AVIATION AIRCRAFT 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

Coatings for Slip-Critical Bolted Connections

An ASTM subcommittee is developing a proposed standard to test the slip coefficient properties of coatings used in slip-critical bolted connections. The test is based on an appendix in the “Specification for Structural Joints Using High-Strength Bolts,” published by the Research Council on Structural Connections. The proposed ASTM standard will expand on the Research Council standard by describing the preparation of test specimens in detail and by conducting an interlaboratory study that will allow for the inclusion of of precision and bias statement.

WK45390, Test Method for Slip Coefficient and Tension Creep Testing of Coatings Used in Slip Critical Bolted Connections, is being developed by Subcommittee D01.46 on Industrial Protective Coatings, part of ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications.

“The coatings used on the bolted connections on bridge structures help to retard the corrosion of the underlying steel while helping to ensure the safety of the traveling public,” says Bill Corbett, vice president and group manager–professional services, KTA-Tator, Inc. “Further, proper design of the connections on bridges and building helps to ensure structural integrity. If protective coatings are used in the connection, they are considered a component in the design.”

Corbett says that the primary users of WK45390, once it is approved, will be coating manufacturers, testing laboratories and bridge/building designers. Manufacturers will have their coatings tested according to the standard while laboratories will use it to properly prepare coated test plates and generate reliable test data.

According to Corbett, bridge and building designers will have the confidence that the coating selected for use on the faying surfaces (the interface of the connection/gusset plate and the structural member) will provide the design slip resistance for the bolted connections on the structure, which will ultimately determine the number of bolts required for the connection.

The task group developing WK45390 will be working with the Research Council on Structural Connections, as well as bridge/building designers to ensure that the proposed standard will meet its intended need. All interested parties, particularly representatives of coating manufacturers, laboratories and academia are encouraged to join in the standard development process.

CONTACT Technical Information: Bill Corbett, KTA-Tator Inc. • Pittsburgh, Pa. • Phone: 412-788-1300, ext. 223 | ASTM Staff: Jeffrey Adkins • Phone: 610-832-9738 | Upcoming Meeting: June 22-24 • Indianapolis, Ind.

This article appears in the issue of Standardization News.