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A new ASTM International standard, adopted from an American Concrete Institute test method, will be used to help ensure the safety of construction projects. ASTM C1741 , Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout, is under the jurisdiction of Subcommittee C09.41 on Hydraulic Cement Grouts , part of ASTM International Committee C09 on Concrete and Concrete…
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Piston ring/liner interface can contribute as much as half the total friction loss in internal combustion engines, with the resulting wear leading to reduced energy efficiency and raised emissions. A new ASTM International standard provides a method to more accurately measure small amounts of wear on curved piston ring segments and their counterfaces after lubricated bench-scale testing. “Coupled…
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Rope rescue uses various types of ropes and other specialized equipment to reach victims and return them safely from dangerous urban or wilderness environments. While a basic level ASTM standard for rope rescue does exist (F2752, Guide for Training for Level I Rope Rescue (R1) Rescuer Endorsement), there has been a need for intermediate operations and advanced technician level standards. These…, Technical Contact:, Sarah Stokesbury, SRA International, Inc., Denver, Colo., Phone: 703-919-9836; sarah_stokesbury@sra.com, ASTM Staff Contact:, Thomas O’Toole, 610-832-9739; totoole@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8904
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Interlocking concrete pavements are extensively used in low-speed urban and rural roads throughout Europe and are seeing increased use as an alternative to asphalt and cast-in-place concrete in the United States. A proposed new ASTM International standard will address the management by city and county transportation agencies of roads made from interlocking concrete pavements. The proposed new…, ASTM Committee E17 Next Meeting:, June 5-6, 2011, State College, Pa., Technical Contact:, David R. Smith, Interlocking Concrete Pavement Institute, Herndon, Va., Phone: 703-657-6900, ext. 201; dsmith@icpi.org, ASTM Staff Contact:, Daniel Smith, Phone: 610-832-9727; dsmith@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8857
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Traffic monitoring is a means of counting and classifying vehicles and measuring vehicle flow characteristics, such as vehicle speed, lane occupancy, turning movements and other items typically used to portray traffic movement. In order for traffic monitoring data to be assessed properly, information on how the data were collected, edited, summarized and reported must be provided. This obligation…
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ASTM Committee G02 on Wear and Erosion is including a field trip in the plans for its Dec. 8-9 meeting in Jacksonville, Fla. Committee members will be visiting the Tribology Laboratory in the mechanical engineering department at the University of Florida in Gainesville. The Tribology Laboratory is actively involved in a wide variety of tribological research and tribology education projects. The…
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Two new ASTM International standards on rescue litters and fixed anchorages will contribute to the safety and efficiency of search and rescue operations. Both standards were developed by Subcommittee F32.01 on Equipment, Testing and Maintenance, part of ASTM International Committee F32 on Search and Rescue., BASKET TYPE RESCUE LITTERS, Until the development of ASTM F2821 , Test Methods for Basket Type Rescue Litters, there had not been a standardized means for manufacturers to test these rescue devices, according to John McKently, Los Angeles County Sheriff's Department, and an F32 member. “ASTM F2821 was developed because there was no standard available that allowed manufacturers to test litter products in the same way,” says…, FIXED ANCHORAGES, According to McKently, the impetus for the development of ASTM F2822 , Specification for Fixed Anchorages Installed on Structures Used for Rope Rescue Training, was similar to that of ASTM F2821. In this case, the standard was developed to provide minimum strength requirements for anchorages permanently installed or attached to training towers or other structures used for rope rescue training. “…, ASTM Committee F32 Next Meeting:, Nov. 7-10, in conjunction with the International Technical Rescue Symposium, Golden, Colo., Technical Contact:, John McKently, Los Angeles County Sheriff's Department, Glendale, Calif., Phone: 818-247-3209; jmckently@earthlink.net, ASTM Staff Contact:, Thomas O'Toole, Phone: 610-832-9739; totoole@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8654
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A new ASTM standard will be useful to slide and engine companies, as well as makers of bushing materials, in studies that involve the measurement of system friction forces. The new standard, ASTM G203 , Guide for Determining Friction Energy Dissipation in Reciprocating Tribosystems, was developed by Subcommittee G02.50 on Friction, part of ASTM International Committee G02 on Wear and Erosion.…
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Since the appearance of the first California-type models around 1940, the profilograph has been a popular device used for quality control in the construction of pavements. Both roadway and airfield landing agencies have adopted roughness indexes computed from profilograph-derived measurements as a level of construction quality. Emerging high-speed inertial profilers can now quickly collect…
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A proposed new standard being developed by ASTM International Committee E17 on Vehicle-Pavement Systems will be the first to describe how truth-in-data should be applied to traffic monitoring data collection, summarization and reporting. WK25280 , Practice for Highway Traffic Monitoring Truth-in-Data, is under the jurisdiction of Subcommittee E17.52 on Traffic Monitoring. Current traffic…