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Two new standards have recently been approved by ASTM International Committee D04 on Road and Paving Materials. The standards, both of which are under the jurisdiction of Subcommittee D04.26 on Fundamental/Mechanistic Tests, are D 6931 , Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures, and D 7312 , Test Method for Determining the Permanent Shear Strain and Complex Shear…, ASTM D 6931, Test Method for Indirect Tensile (IDT) Strength of Bituminous Mixtures, The withdrawal of D 4123 , Test Method for Indirect Tension Test for Resilient Modulus of Bituminous Mixtures, led to the development of D 6931 , since D 4123 contained a description of an indirect tensile strength test that was referred to in several other standards. It was decided to develop this test into a completely separate standard, D 6931, to stand on its own merit as a method that…, ASTM D 7312, Test Method for Determining the Permanent Shear Strain and Complex Shear Modulus of Asphalt Mixtures Using the Superpave Shear Tester (SST), According to Rebecca McDaniel, technical director, North Central Superpave Center, and leader of the D 7312 task group, Superpave is a system for designing asphalt mixtures to ensure that the right asphalt binder and aggregate structure is used for the traffic and climate where it will be placed on the road. To facilitate the implementation of Superpave, the Federal Highway Administration…
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While poured-in-place playground surfacing is a very promising form of playground surface construction, its use has not been without problems. In order to address these issues, ASTM International Committee F08 on Sports Equipment and Facilities has developed F 2479, Guide for Specification, Purchase, Installation and Maintenance of Poured-in-Place Playground Surfacing. F 2479 is under the…
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Building a public use skateboarding park can be a difficult and divisive event for many communities. Financial and accountability issues need to be considered and the park needs to be safe for skateboarders who use it. The needs of skateboarders themselves must be addressed as well, since many communities have built inadequate parks that remain unused as skateboarders continue to skate at the…
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A new ASTM International standard will provide paving contactors and producers with instructions for preparing cold mix asphalt samples for testing. The standard, D 7229 , Test Method for Preparation and Determination of the Bulk Specific Gravity of Dense-Graded Cold Mix Asphalt (CMA) Specimens by Means of the Superpave Gyratory Compactor, was developed by Subcommittee D04.27 on Cold Mix Asphalts…
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After Penn State University student-athlete Kevin Dare was killed in a pole vaulting accident in early 2002, his father, Edward Dare, and Penn State athletic director Timothy Curley organized a meeting to address safety issues in the track and field event. Immediately following this meeting, several attendees met at the spring 2002 meeting of ASTM International Committee F08 on Sports Equipment…
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ASTM International standard F 1936, Specification for Shock-Absorbing Properties of North American Football Field Playing Systems as Measured in the Field, has had a positive effect on the sports field industry. Since the introduction of F 1936, which was approved by Committee F08 on Sports Equipment and Facilities in 1998, the amount of field testing and the number of firms offering field…
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Minor head injuries among soccer players are more common than have been previously recognized, according to a series of recent studies. In one such study conducted by McGill University, it was found that more than 60 percent of college soccer players surveyed had concussion symptoms over the course of a single year. Another study by the National Institutes of Health estimated that 90 percent of…
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During the past five years, certain insulating oils have been found to contain corrosive sulfur that can produce copper sulfide deposits as a function of time and temperature in operating equipment. A proposed revision to ASTM standard D 1275, Test Method for Corrosive Sulfur in Electrical Insulating Oils, will provide a means to certify that new or in service oils either contain or do not…
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ASTM International will launch a new Proficiency Testing Program (PTP) on Dissolved Gas Analyses (DGA) of In-Service Insulating Fluid in February 2006. The program will be offered to laboratories who need a statistical quality assurance tool that will enable them to improve and maintain a high level of performing ASTM standard D 3612, Test Method for Analysis of Gases Dissolved in Electrical…
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ASTM Committee F08 on Sports Equipment and Facilities has developed a new standard that establishes requirements for the information that is permanently affixed to backpacking and mountaineering tents and bivy sacks. The requirements included in standard F 2441, Practice for Labeling of Backpacking and Mountaineering Tents and Bivy Sacks, significantly expand on the information now required for…