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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
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Saturated Concretes

A proposed new ASTM International test method will be used by ready-mix concrete producers to characterize the drying behavior of new and existing concrete mixture proportions. WK37029, Test Method for Measurement of Mass Loss Versus Time for One-Dimensional Drying of Saturated Concretes, is being developed by Subcommittee C09.66 on Concrete’s Resistance to Fluid Penetration, part of ASTM International Committee C09 on Concrete and Concrete Aggregates.

“This proposed standard is being developed to support the modeling of concrete service life,” says Dale Bentz, chemical engineer for the Materials and Structural Systems Division in the Engineering Laboratory at the National Institute of Standards and Technology.

Bentz, the chairman of the task group developing WK37029, notes that, in many applications, concrete is exposed to wetting and drying conditions such that the concrete is partially saturated. The purpose of the proposed standard is to provide information on the mass loss versus time (drying) behavior of an initially saturated concrete specimen exposed to one-dimensional drying in a controlled temperature and relative humidity environment.

“The drying information provided by the test in WK37029 can be used to directly assess the drying propensity of a given concrete mixture,” says Bentz. “This information could be valuable for industrial flooring applications where quick drying is often desirable.” Bentz also notes that the data can be analyzed to provide estimates of vapor diffusivity and liquid permeability for the concrete mixture being tested.

Ready-mix concrete producers, as well as testing laboratories and concrete consultants, will be the primary users of WK37029.

Participation in the standards developing activities of C09.66 is welcome. The subcommittee would be particularly interested in working with laboratories that would be willing to implement the test method contained in WK37029, as well as anyone else who has suggestions for modifications of the current version of the proposed standard.

CONTACT Technical Information: Dale P. Bentz, National Institute of Standards and Technology • Gaithersburg, Md. • Phone: 301-975-5865 | ASTM Staff: Scott Orthey • Phone: 610-832-9730 | Upcoming Meeting: Dec. 9-11 • December Committee Week • Jacksonville, Fla.

This article appears in the issue of Standardization News.