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A new ASTM standard, C 1610/C 1610M , Test Method for Static Segregation of Self-Consolidating Concrete Using Column Technique, satisfies a need within the industry for a test method to measure the stability of self-consolidating concrete. The standard is under the jurisdiction of Subcommittee C09.47 on Self-Consolidating Concrete, which is part of ASTM International Committee C09 on Concrete and…
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ASTM Committee ASTM International Committee D18 on Soil and Rock has approved a new ASTM International standard that covers the guidelines, requirements and procedures for evaluating the ability of temporary ditch checks to protect earthen channels from stormwater-induced erosion. The standard, D 7208 , Test Method for Determination of Temporary Ditch Check Performance in Protecting Earthen…
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Conventionally processed powder metallurgy materials often exhibit open microporosity at the surface. While it is a natural part of the process, this microporosity can affect the measurement of surface finishes. To cover this and other issues that arise from measuring the surface finish of powder metallurgy, ASTM International Committee B09 on Metal Powders and Metal Powder Products has developed…
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A new ASTM International publication, STP 1482 , Contaminated Sediments: Evaluation and Remediation Techniques, contains 38 peer-reviewed papers on the latest advances in the fields of environmental science and underwater engineering related to sediments. Topics addressed include characterization, evaluation, mitigation, restoration, and management of contaminated sediments in the fields of…
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Concrete producers of both ready-made and precast/prestressed concrete will be the primary users of a new standard recently approved by ASTM International Committee C09 on Concrete and Concrete Aggregates. The standard, C 1621/C 1621M , Test Method for Passing Ability of Self-Consolidating Concrete by J-Ring, is under the jurisdiction of Subcommittee C09.47 on Self-Consolidating Concrete. …
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ASTM International Committee C09 on Concrete and Concrete Aggregates has recently approved a new standard that will facilitate post-crack performance measurement for fiber-reinforced concrete intended for slabs-on-grade, pavements, pre-cast elements and shotcrete. The standard, C 1609/C 1609M, Test Method for Flexural Performance of Fiber-Reinforced Concrete (Using Beam With Third-Point Loading…
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Applications are currently being accepted for the 2006 ASTM International Katharine and Bryant Mather Scholarship., Administered by ASTM International Committee C09 on Concrete and Concrete Aggregates, the scholarship applies to students pursuing degrees specializing in cement or concrete materials technology. Full-time undergraduate students completing their second/sophomore year of college, or later, or graduate students (specializing in cement or concrete materials technology) are eligible to apply. The…
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ASTM International, Committee C01 on Cement and Committee C09 on Concrete and Concrete Aggregates have joined forces to form a new subcommittee, C09.48/C01.48 on Performance of Cementitious Materials and Admixture Combinations. The scope of the new subcommittee is to develop and maintain standards for investigating interactions and evaluating changes in early-age properties when various combinations of hydraulic…
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ASTM International Committee C09 on Concrete and Concrete Aggregates has recently approved two new standards, C 1611, Test Method for Slump Flow of Self-Consolidating Concrete, and C 1622, Specification for Cold-Weather Admixture Systems. Descriptions of both new standards follow. , C 1611 Test Method for Slump Flow of Self-Consolidating Concrete, The concrete industry has been using self-consolidating concrete for the past several years. A new ASTM International standard developed by Committee C09 on Concrete and Concrete Aggregates, C 1611, Test Method for Slump Flow of Self-Consolidating Concrete, will allow users to measure the consistency of self-consolidating concrete for the first time. "Because of its high fluidity, the…, C 1622 Specification for Cold-Weather Admixture Systems, Using concrete during construction in cold weather is difficult since concrete can freeze before it hardens. However, a new ASTM standard, which is the result of a project to prove that antifreeze technology for concrete is feasible, will allow for greater use of concrete during construction in cold weather. ASTM Committee C09 on Concrete and Concrete Aggregates has approved the new standard…
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A former military standard has become the basis for a new ASTM standard developed by Committee E11 on Quality and Statistics. The new standard, E 2234, Practice for Sampling a Stream of Product by Attributes Indexed by AQL, will be the first in a series based on a now-withdrawn set of military documents on sampling. Practice E 2234, presently under the jurisdiction of Subcommittee E11.10 on…