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A new ASTM International practice provides a standard for preparing a mixture of cement paste that will simulate the shearing experienced by the cement paste in concrete. The new standard, ASTM C1738 , Practice for High-Shear Mixing of Hydraulic Cement Pastes, was developed by Subcommittee C01.22 on Workability , part of ASTM International Committee C01 on Cement . According to Chiara Ferraris,…
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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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Although PVC gasketed sewer basins are currently being produced and supplied to the storm drainage market, there are not currently minimum requirements users can refer to for a purchase. A proposed new ASTM International standard will provide these requirements. ASTM WK32336 , Specification for Poly(Vinyl Chloride) (PVC) Gasketed Sanitary and Storm Drainage Sewer Basins and Fittings, is being…
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Ensuring effective knowledge of underground assets and systems is essential for gas utility companies that are implementing plans to address regulatory initiatives and reporting requirements. A new ASTM International specification provides a comprehensive plan for tracking and tracing these assets. The new standard, ASTM F2897 , Specification for Tracking and Traceability Encoding System of…
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Innovations in the equations and other analytical tools that engineers have used when designing close-fit liners for plastic pipe have led to a need for a new standard for design calculations. This need will be met by a proposed new ASTM International standard, ASTM WK29237, Practice for Design Calculations of Close-Fit Liners. The proposed new standard is being developed by Subcommittee F17.67…
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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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ASTM International Committee F17 on Plastic Piping Systems has just completed the development of two new standards for polypropylene sanitary sewer pipe. These new standards are the first to address both dual wall and triple wall profile designs. “Polypropylene has unique material characteristics, which make it ideal for sanitary sewer pipe applications,” says John Kurdziel, director, technical…
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A newly approved ASTM International standard provides a procedure for safely conducting leakage tests of polyethylene pressure piping systems with compressed gaseous testing media. The new standard, ASTM F2786 , Practice for Field Leak Testing of Polyethylene (PE) Pressure Piping Systems Using Gaseous Media Under Pressure (Pneumatic Leak Testing), was developed by Subcommittee F17.40 on Test…
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A proposed new ASTM International standard will allow gas utility companies to better identify underground assets, such as different types of pipe, fittings and components. From an operations perspective, effective identification is a critical component, ranging from asset management to risk management and mitigation, to help facilitate compliance with the recent Distribution Integrity Management…
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Rapid hardening hydraulic cements are used in a variety of applications in which reduced cementitious contents are desired or early service is needed. Included among these applications are paving, construction, stucco, mortar and block. A newly approved ASTM International standard covering these cements, ASTM C1600/C1600M , Specification for Rapid Hardening Hydraulic Cement, has been developed by…, Type URH, —ultra rapid hardening, for use where ultra high early strength is desired;, Type VRH, —very rapid hardening, for use where very high early strength is desired;, Type MRH, —medium rapid hardening, for use where mid-range rapid hardening, high early strength is desired; and, Type GRH, —general rapid hardening, for use when the higher strength properties of Type VRH or a Type MRH cement is not required. “ASTM C1600 lists minimum requirements for compressive strength, setting time, shrinkage and soundness (autoclave expansion),” says Hicks. “Optional specifications for sulfate expansion, alkali silicate reactions with aggregates, heat of hydration and expansion in water are also…