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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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New ASTM Committee E58 to Develop Standards That Support Engineering Investigations and Assist the Court, ASTM International, one of the largest voluntary standards development organizations (SDO) in the world, today announced the formation of ASTM Committee E58 on Forensic Engineering . Committee E58 will develop standards that promote awareness of the scientific, engineering, ethical and legal considerations inherent in forensic engineering investigations, reporting and testimony., Bringing Engineering Reason to the Dispute Resolution Process, Forensic engineering focuses on the investigation of alleged defects in materials, products, structures and components. These cases are litigated on the premise that the defects cause personal injury or damage to property. Forensic engineering investigations may help determine the causes of these events and assist the disputing parties or the court in resolving the case. Today, forensic…, Assisting the Court through Consensus Standards, ASTM Committee E58 comes together to create important standards and guides that will support the judicial process by facilitating an improved understanding of forensic engineering practices and associated technical issues. This will better enable the court to resolve disputes in a more well-informed and efficient manner, relying on deeper knowledge of the technical data presented and the sound…, E58 Standards: Guiding Forensic Engineering Practice, E58 standards will help guide forensic engineers in conducting investigations in a robust manner while protecting overall public safety. The initial scope of Committee E58 activities will be driven by subcommittees on Product Defect Incidents, Vehicular Incidents, Electrical Incidents and Industrial Processes. ASTM Committee E58 will build upon the body of work of former subcommittee E30.05 on…, Foundation Standard for the Forensic Engineering Profession, Other E58 standards will bolster the role of forensic engineering professionals in the eyes of the court and other users of these services. Consistent with this objective, Committee E58 has recently drafted a general practice document for the forensic engineering profession, titled Standard Guide for the Practice of Forensic Engineering. The goal of this standard is to further educate the court…
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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…
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A new ASTM standard, D 7401, Test Methods for Laboratory Determination of Rock Anchor Capacities by Pull and Drop Tests, is the result of requests to standardize a test to determine dynamic rock anchor capacity that is used internationally in the mining industry. The new test method was developed by Subcommittee D18.12 on Rock Mechanics, part of ASTM International Committee D18 on Soil and Rock.…
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A proposed new ASTM International standard will fill a need for a reliable method for measuring beryllium at various levels in soil samples that does not require the use of aggressive digestion methods involving strong acids. The proposed standard, WK17600 , Test Method for Determination of Beryllium in Soil, Rock, Sediment and Fly Ash Using Field-Based Extraction and Fluorescence Detection, is…