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Many state departments of transportation are collecting traffic data in real time and using it to manage traffic or provide travel information, as part of intelligent transportation systems. Some agencies save and archive this data after its initial real-time use and make it available to other data users, who often know little about how the data was collected or even what is contained in the data…
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After a 35-year-absence, the natural cement industry is being revived and, along with it, a long-withdrawn ASTM International standard. Until it closed in 1970, the Century Cement Company in Rosendale, N.Y. was the last company to manufacture natural cement. Up to that point, Rosendale had been the center of the industry, the source of more than half of all natural cement produced in the U.S.…
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A new test method developed by ASTM International Committee C01 on Cement provides information about the behavior of cement that can be used in the process of selecting cementing materials for specific applications. The standard, C 1608, Test Method for Chemical Shrinkage of Hydraulic Cement Pastes, is under the jurisdiction of Subcommittee C01.31 on Volume Change. Test Method C 1608 was…
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ASTM International Committee E42 on Surface Analysis has approved a new standard, E 2382, Guide to Scanner and Tip Related Artifacts in Scanning Tunneling Microscopy and Atomic Force Microscopy. The guide, under the jurisdiction of Subcommittee E42.14 on STM/AFM, was proposed in order to assist new scanning probe microscopy users with more rapid recognition and assessment of artifacts in imaging…