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The abrasiveness of rock plays a crucial role in the performance of any mechanical excavation machines because overall costs are affected by the rate of cutting tool replacement and/or repair and machine downtime. The need for a standard that assists the civil and mining industries in quantifying rock abrasiveness properly and uniformly has been answered by a new ASTM International standard.…
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Three dimensional image system technology is now used in a wide variety of industries, including construction, mapping, manufacturing, mining and forensics. For all of these industries, safe usage of 3D imaging equipment is a top priority. However, until the approval of a new ASTM International standard, no safety guidelines specifically oriented toward 3D image system technology existed. The…
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A proposed new ASTM standard is an important step in guiding federal, state and local highway agencies, contractors, material suppliers and consultants on the sustainable use of recycled asphalt pavement. ASTM WK26824 , Specifications for Recycled Asphalt Pavement Materials for Base or Subbase for Highway or Airports, is being developed by Subcommittee D18.14 on Geotechnics of Sustainable…, ASTM Committee D18 Next Meeting:, June 6-8, June committee week, St. Louis, Mo., Technical Contact:, Haifang Wen, Washington State University, Pullman Wash., Phone: 608-262-1777; haifang_wen@wsu.edu, ASTM Staff Contact:, Robert Morgan, Phone: 610-832-9732; rmorgan@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #8493/Feb2010
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Wet and dry density of soils are important values for geotechnical engineers in determining over-burden stresses, void ratios, maximum compaction and percent compaction of soils. Density value can also aid in the evaluation of soil strength and sensitivity. While reporting on soil density has been part of routine laboratory testing for years, there have been no standards that outlined procedures…
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The Fourth International Symposium on Contaminated Sediments will be held June 30-July 2, 2009, at Trinity College in Dublin, Ireland. The symposium is sponsored by ASTM International Committee D18 on Soil and Rock and Trinity College in cooperation with the Engineers Ireland, Canadian Civil Engineering Society (CSCE) and the Canadian Geotechnical Society (CGS). The symposium is a forum for the…
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Responding to requests from industry, ASTM International Committee D18 on Soil and Rock is developing a proposed new standard for measuring rock abrasivity, which will aid mechanical excavation projects in several ways. The proposed standard, ASTM WK22313 , Test Method for Laboratory Determination of Abrasivity of Rock Using the CERCHAR Method, is under the jurisdiction of Subcommittee D18.12 on…
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A type of testing that can aid in predicting soil and foundation response to seismic and manmade disturbances is covered in a proposed new ASTM International standard. The proposed standard, WK23118 , Test Method for Determination of Shear Wave Velocity by Bender Element, is being developed by Subcommittee D18.09 on Cyclic and Dynamic Properties of Soils, part of ASTM International Committee D18…
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ASTM Committee D18 on Soil and Rock is developing a proposed new standard, WK21484 , Practice for Nuclear Gauge Calibration. The proposed standard is under the jurisdiction of Subcommittee D18.08 on Special and Construction Control Tests. Dan Pratt, senior nuclear project physicist, Troxler Electronic Laboratories Inc., and D18 member, says that two motivating factors are guiding the development…
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A proposed new practice being developed by ASTM Subcommittee D18.21 on Ground Water and Vadose Zone Investigations will cover techniques for actively collecting soil gas samples from the vadose zone beneath buildings. WK18835 , Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations, is under the jurisdiction of ASTM International Committee D18 on Soil and Rock.…
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An innovative system that can be used to test and compare sediment control products has been approved as a new ASTM International standard by Committee D18 on Soil and Rock. The standard, D 7351 , Test Method for Determination of Sediment Retention Device Effectiveness in Sheet Flow Applications, is under the jurisdiction of Subcommittee D18.25 on Erosion and Sediment Control Technology. Even…