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Precast reinforced concrete box sections are proving to be a versatile means for the development of infrastructure. The use of segmental box sections is now covered in an ASTM standard, ASTM C1786 , Specification for Segmental Precast Reinforced Concrete Box Sections for Culverts, Storm Drains and Sewers Designed According to AASHTO LRFD. The American Association of State Highway and…, Technical Contact:, Josiah W. Beakley, American Concrete Pipe Association, Irving, Texas, tel +1.972.894.2906; jbeakley@concrete-pipe.org, ASTM Staff Contact:, Diane Lake, tel +1.610.832.9661; dlake@astm.org, ASTM PR Contact:, Barbara Schindler, tel +1.610.832.9603; bschindl@astm.org Release #9745
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Maybe you haven’t given much thought to the growth of interlaminar cracks, or cracks in between layers, in laminated composite materials. Perhaps you should though, because such materials are everywhere and interlaminar cracks can cause serious damage to many types of structures and products, from sports equipment to spacecraft. This is why a new ASTM standard, D7905/D7905M , Test Method for…, Technical Contact:, Barry D. Davidson, Ph.D. Syracuse University, Syracuse, N.Y., tel +1.315.443.4201; bddavids@syr.edu, ASTM Staff Contact:, Ashley Wiand, tel +1.610.832.9551; awiand@astm.org, ASTM PR Contact:, Barbara Schindler, tel +1.610.832.9603; bschindl@astm.org Release #9724
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Since the late 1970s, precast box sections have become an important component in the construction of culverts, storm drains and sewers, but there has not been a comprehensive standard for the installation of such sections. A new ASTM International standard fills this gap. ASTM C1675, Practice for Installation of Precast Reinforced Concrete Monolithic Box Sections for Culverts, Storm Drains and…, Technical Contact:, Roman Selig, Hamilton Kent LLC, Birmingham, Ala., Phone: 205-910-0690; roman.selig@hamiltonkent.com, ASTM Staff Contact:, Diane Trinsey, Phone: 610-832-9661; dtrinsey@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9243
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Load and resistance factor design methodology developed by the American Association of State Highway and Transportation Officials plays a key role in a proposed ASTM standard on the design of culverts and storm drains. ASTM WK38166 , Specification for Manufacture of Precast Reinforced Concrete Three-Sided Structures for Culverts and Storm Drains Designed According to AASHTO LRFD, is being…, Technical Contact:, Balaram K. Singh, P.E., Michigan Department of Transportation, Lansing, Mich., Phone: 517-335-2174; singhb@michigan.gov, ASTM Staff Contact:, Diane Trinsey, Phone: 610-832-9661; dtrinsey@astm.org, ASTM PR Contact, : Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9311
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A new ASTM International standard fills an industry need for damage resistance testing of sandwich constructions, a common composite structural configuration. ASTM D7766/D7766M , Practice for Damage Resistance Testing of Sandwich Constructions, was developed by Subcommittee D30.09 on Sandwich Construction , part of ASTM International Committee D30 on Composite Materials . “ASTM D7766/D7766M will…, Technical Contact:, Adam J. Sawicki, Boeing Co., Philadelphia, Pa., Phone: 610-591-2807; adam.j.sawicki@boeing.com, ASTM Staff Contact:, Ashley Wiand, Phone: 610-832-9551; awiand@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9195
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A new ASTM International standard will answer industry’s need for determination of fatigue properties of open-hole composite laminates. ASTM D7615/D7615M , Practice for Open-Hole Fatigue Response of Polymer Matrix Composite Laminates, was developed by Subcommittee D30.05 on Structural Test Methods , part of ASTM International Committee D30 on Composite Materials . The purpose of ASTM D7615/D7615M…, ASTM Committee D30 Next Meeting:, Oct. 17-19, 2011, in conjunction with the Society for the Advancement of Material and Process Engineering, Fort Worth, Texas, Technical Contact:, Mark Chris, Bell Helicopter Textron, Inc., Dallas, Texas, Phone: 817-280-872; mchris@bellhelicopter.textron.com, ASTM Staff Contact:, Ashley Wiand, Phone: 610-832-9551; awiand@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8914
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ASTM International Committee D30 on Composite Materials is currently developing a proposed new standard, ASTM WK30231 , Practice for Damage Resistance Testing of Sandwich Constructions, which will be the first industry standard to cover this topic. “Committee D30 has published standards for damage resistance testing of composite laminates, namely ASTM D6264 and ASTM D7136, but does not have…, ASTM Committee D30 Next Meeting:, March 2-4, 2011, in conjunction with CMH17, Kansas City, Mo., Technical Contac, t: Adam Sawicki, Boeing Co., Philadelphia, Pa., Phone: 610-591-2807; adam.j.sawicki@boeing.com, ASTM Staff Contact:, Ashley Wiand, Phone: 610-832-9551; awiand@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8775
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ASTM grain size is a property written into many specifications for metals, with finer grain sizes generally indicating better mechanical properties, such as formability. While measuring certain materials for such properties can be difficult, electron backscatter diffraction can provide precise determinations as well as give information on grain size distribution and statistics. A new ASTM…
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A recent revision to ASTM International standard E384 , Test Method for Knoop and Vickers Hardness of Materials, expands the range of its coverage. The standard is under the jurisdiction of Subcommittee E04.05 on Microindentation Hardness Testing, part of ASTM International Committee E04 on Metallography. The revision incorporates ASTM E92 , Test Method for Vickers Hardness of Metallic Materials…
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Subcommittee D30.05 on Structural Test Methods has been developing a series of standards addressing polymer reinforced composite materials used in the repair and reinforcement of concrete buildings and other civil structures. The latest approved standard in this series addresses the tension testing of materials that are externally bonded to concrete and other structural materials for repair,…