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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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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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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…
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ASTM International Committee F32 on Search and Rescue is currently developing a number of proposed new standards. Two of the proposed standards under the jurisdiction of Subcommittee F32.02 on Management and Operations are WK23984 , Guide for Level 1 (Basic) Mounted Search and Rescue (MSAR) Responder, and WK24699, Guide for Training for Land SAR as a Level 1 Out of Area Disaster Responder.…
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Being able to compile and interpret data on how traffic turns through an intersection could have an impact on future environmental and safety decisions regarding intersection geometry and traffic control. However, until recently no standard has existed to properly obtain and use this data. Now, ASTM International Committee E17 on Vehicle-Pavement Systems has approved E2667 , Practice for…
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The importance of telecommunicators in the search and rescue field cannot be overstated. Dispatchers receiving and delivering accurate information in a timely manner are critical to any SAR operation. A new standard developed by ASTM International Committee F32 on Search and Rescue highlights the importance of proper training for SAR dispatchers. The standard, ASTM F2662 , Guide for Minimum…
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Honeycomb ceramics, porous with linear hollow channels, are being used worldwide in automotive catalytic converters and as diesel particulate filters for trucks. Flexural testing of this type of ceramics is addressed in a new ASTM International standard, ASTM C1674 , Test Method for Flexural Strength of Advanced Ceramics with Engineered Porosity (Honeycomb Cellular Channels) at Ambient…
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New Advanced Ceramics Standards from ASTM Cover Fracture Mirror Size Analysis, Tensile Strength DataSubcommittee C28.01 on Mechanical Properties and Performance, part of ASTM International Committee C28 on Advanced Ceramics, has recently approved two new standards, ASTM C1678 , Practice for Fractographic Analysis of Fracture Mirror Sizes in Ceramics and Glasses, and ASTM C1683 , Practice for Size Scaling of Tensile Strengths Using Weibull Statistics for Advanced Ceramics., ASTM C1678 —Bringing Consistency to Fracture Mirror Size Analysis, Fracture mirror size analysis is a powerful quantitative tool for the interpretation of broken ceramic and glass articles. While this type of analysis can be used to determine the stress in a part at the instant of fracture, inspection and interpretation procedures have often varied, resulting in uncertainty in stress estimates. ASTM C1678, Practice for Fractographic Analysis of Fracture Mirror…, ASTM C1683 —Scaling Strength Values, ASTM C1683, Practice for Size Scaling of Tensile Strength Using Weibull Statistics for Advanced Ceramics, provides methodology to convert fracture strength parameters estimated from data obtained with one test geometry to strength parameters representing other test geometries. Stephen Duffy, chair of civil engineering, Cleveland State University, and C28 member, says that companies producing…