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Drawing on the best practices of the U.S. Federal Highway Administration and the states, ASTM International Committee E17 on Vehicle-Pavement Systems has developed a new standard, E 2561 , Practice for Installation of Inductive Loop Detectors. E 2561 is under the jurisdiction of Subcommittee E17.52 on Traffic Monitoring. Inductive loop detectors are installed in sawed slots in roadway pavement…
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Airport operators, military pavement maintenance personnel, transportation regulatory agencies and state highway departments will all benefit from the approval of a new ASTM standard for measuring skid resistance. The standard, E 2340 , Test Method for Measuring the Skid Resistance of Pavements and Other Trafficked Surfaces Using a Continuous Reading, Fixed-Slip Technique, was developed by…
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Two new standards developed by ASTM International Committee E17 on Vehicle Pavement Systems will provide uniform specification and test criteria for agencies and manufacturers that deal with traffic monitoring devices. The new standards, which are both under the jurisdiction of Subcommittee E17.52 on Traffic Monitoring, are E 2300 , Specification for Highway Traffic Monitoring Devices, and E 2532…
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A more efficient method to take asphalt pavement layer temperatures is the subject of a new standard developed by Subcommittee E17.41 on Pavement Management. The document, D 7228 , Test Method for Prediction of Asphalt-Bound Pavement Layer Temperatures, details surface temperature measurement and is based on temperature relationships in the Federal Highway Administration Long Term Pavement…
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Many state departments of transportation are collecting traffic data in real time and using it to manage traffic or provide travel information, as part of intelligent transportation systems. Some agencies save and archive this data after its initial real-time use and make it available to other data users, who often know little about how the data was collected or even what is contained in the data…
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Verifying the results of application software used to calculate the mechanical properties of materials is the subject of a new standard developed by ASTM International Committee E08 on Fatigue and Fracture. The new standard, E 2443, Guide for Verifying Computer-Generated Test Results Through the Use of Standard Data Sets, is under the jurisdiction of Subcommittee E08.03 on Advanced Apparatus and…
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Many structures, such as aircraft or other lightweight vehicles, are made from thin-ductile structural materials that exhibit low crack-front constraint, which allows for extensive plastic yielding of the material around a crack front. However, many current standards, such as E 399, Test Method for Linear-Elastic Plane-Strain Fracture Toughness K Ic of Metallic Materials, or E 1820, Test Method…
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Representatives of ASTM International will visit the campus of Southern Methodist University (SMU) in Dallas, Texas, on the evening of Nov. 9, 2005, for an hour-long presentation to university students interested in the field of fatigue and fracture. The session will focus on the technical standards currently in use by this discipline as well as the ability of students and professionals to be…
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ASTM International Committee D30 on Composite Materials invites all interested parties to participate in a new task group on fiber-reinforced polymers. The task group is under the jurisdiction of Subcommittee D30.05 on Structural Test Methods. The purpose of the new task group is to review a series of tests that the American Concrete Institute has developed through their Committee 440 on Fiber-…
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A questionnaire sent to members of ASTM International Committee D30 on Composite Materials proved to be the catalyst for a pair of newly approved standards, D 7136, Test Method Measuring the Damage Resistance of a Fiber-Reinforced Polymer Matrix Composite to a Drop-Weight Impact Event, and D 7137, Test Method for Compressive Residual Strength Properties of Damaged Polymer Matrix Composite Plates…