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A new standard recently approved by ASTM International Committee D18 on Soil and Rock is the result of requests from the Indiana Department of Transportation and the U.S. Bureau of Reclamation for an effective test method to cover the determination of the maximum dry unit weight and water content range for effective compaction of granular soils. D 7382 , Test Methods for Determination of Maximum…
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ASTM Subcommittee D01.44 on Traffic Coatings has recently approved a new standard, D 7377 , Practice for Evaluating the Water Wash-Off Resistance of Traffic Paints, and is developing a proposed new standard, WK16700 , Practice for the Determination of Drying Rate of Waterborne Pavement Marking Paints Using a Test Chamber. The subcommittee is part of ASTM International Committee D01 on Paint and…, New Practice Measures Paint Resistance to Hard Rain, Hard rain sometimes falls soon after traffic paint has been applied to a road surface. Subcommittee D01.44 developed D 7377 to simulate hard rain conditions to determine the water wash-off resistance of an applied traffic paint film. D 7377 can be used to compare conventional and fast-dry traffic paints as well as the latex binders used in them for their relative ability to withstand heavy rain…, Proposed Standard to Measure Paint Drying Rate, Shay says that the subcommittee welcomes participation from all interested parties, particularly state Department of Transportation staff and liquid traffic paint makers, in all of its activities, including the development of WK16700 , a proposed standard that is designed to conveniently measure the drying rate of waterborne pavement marking paints under practical conditions of high humidity…
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A new ASTM International standard, D 7367 , Test Method for Determining Water Holding Capacity of Fiber Mulches for Hydraulic Planting, will provide a means of evaluating water holding capacity in fiber mulches. The standard has been developed by Subcommittee D18.25 on Erosion and Sediment Control Technology, part of ASTM International Committee D18 on Soil and Rock. According to Becky Gauthier…
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Measuring the thickness of dry coating powders is an important factor in the manufacture of a variety of products. ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications has developed a new standard for this purpose, D 7378 , Practice for Measurement of Thickness of Applied Coating Powders to Predict Cured Thickness. D 7378 is under the jurisdiction of…
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A new ASTM International standard, D 7322 , Test Method for Determination of Rolled Erosion Control Product (RECP) Ability to Encourage Seed Germination and Plant Growth Under Bench-Scale Conditions, covers guidelines, requirements and procedures for evaluating the effect of RECPs on seed germination and vegetation enhancement. The standard was developed by Subcommittee D18.25 on Erosion and…
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While a variety of ASTM International standards currently exist for the testing of thermoplastic pavement marking materials, there has been a need to develop practices that address both the proper sampling methods and the correct way to prepare a sample prior to testing. These needs have recently been met with the approval of two new ASTM standards, D 7307 , Practice for Sampling of Thermoplastic…
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Manufacturers of preservatives and antifouling paints will be able to use a new ASTM International standard to evaluate the quality of their products by comparing biocide leach rates in one formulation against a competitive product or their own products. The new standard, D 6903 , Test Method for Determination of Organic Biocide Release Rate from Antifouling Coatings in Substitute Ocean Water,…
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An extensively revised standard and a proposed new standard are among the latest activities pursued by ASTM International Committee D18 on Soil and Rock. Subcommittee D18.11 on Deep Foundations has completed revisions to D 1143 , Test Method for Deep Foundations Under Static Axial Compressive Load, while Subcommittee D18.25 on Erosion and Sediment Control Technology is now working on proposed new…, ASTM D 1143, Test Method for Deep Foundations Under Static Axial Compressive Load, D 1143 covers procedures for testing vertical or inclined deep foundations individually or in groups to determine the axial deflection in response to a static axial compressive load. Subcommittee D18.11 has recently approved an extensive revision of D 1143 that reflects the latest technology used for these purposes. The following are the biggest changes to D 1143, according to Paul Bullock,…, WK13229, Test Method for Determination of Hydraulically Applied Fiber Matrix Performance in Protecting Hill Slopes from Rainfall-Induced Erosion, Subcommittee D18.25 is seeking participation in the ongoing development of WK13229 , particularly from testing laboratories and tackifier manufacturers/importers. WK13229 covers the guidelines, requirements and procedures for evaluating the ability of hydraulically applied fiber matrix to protect hill slopes from rainfall-induced erosion. For this protection to happen effectively, the fiber…
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A proposed new standard being developed by ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications would provide the coatings industry with an industry-wide method for evaluating the ability of an architectural paint system to block ink stains from typical markers and writing instruments from bleeding through primer or base-coat into a topcoat. The proposed…
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ASTM International Committee D18 on Soil and Rock has recently approved a new standard, D 6938 , Test Methods for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth). The new standard, which is under the jurisdiction of Subcommittee D18.08 on Special and Construction Control Tests, consolidates the information contained in two other D18.08 standards, D…