ASTM C856 PDF

This standard is issued under the fixed designation C ; the number 1 This practice is under the jurisdiction of ASTM Committee C09 on Concrete. ASTM C – Download as PDF File .pdf), Text File .txt) or read online. ASTM C has been carried out in accordance with ASTM C to identify any potential AAR con ituent and was written by. Dr R.J. Sewell of the Geological Survey.

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Other mineral admixtures with characteristic particles visible at low magnification are recognizable. This practice applies to samples of all types of hardened hydraulic-cement mixtures, including concrete, mortar, grout, plaster, stucco, terrazzo, and the like.

Qualifications of Petrographers and Use of Technicians. A specific hazard statement is given in 6. Visual and Stereomicroscope Examination. Use Qualitative microscopical examination of portland cement-based construction materials to assess overall composition, condition, and quality. Active view current version of standard. For specimen examination, the equipments needed are stereomicroscope, xstm, petrographic or polarizing microscope, metallographic microscope, eyepiece micrometer, stage micrometer, microscope lamps, needleholders and points, bottles with droppers, assorted forceps, lens paper, refractometer, and immersion media.

Each report specifically addresses the client? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Print and complete the following order form.

ASTM C – 18a Standard Practice for Petrographic Examination of Hardened Concrete

Selection and Use of Apparatus. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Order Form 2 Email complete form to contact listed below. The samples examined may be taken from concrete constructions, they may be concrete products or portions thereof, or they may be concrete or astmm specimens that have been exposed in natural environments, or to simulated service conditions, or subjected to laboratory tests.

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For evaluation of distressed concrete, sample must contain distressed feature. Link to Active This link will always route to the current Active version of the standard. In concrete astj has not oxidized the presence of slag may be inferred from the green or blue color of the paste. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Invaluable tool for evaluating concrete distress and construction materials issues, such as: Sample Type hardened concrete, mortar, stucco, grout, portland cement-based materials, other construction materials inorganic. Visual and Stereomicroscope Examination. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

The samples examined may be taken from concrete constructions, that is, all sorts of objects, units, or structures that have been built of hydraulic cement concrete. Work Item s – proposed revisions of this standard. Work Item s – proposed revisions of this standard. Time for Results Please contact a CTLGroup chemical services representative or Project Manager to discuss your individual project needs and testing response times.

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

ASTM C – 14 Standard Practice for Petrographic Examination of Hardened Concrete

Appropriate procedures for the sampling, preparation, and examination of specimens are detailed c56. The samples examined may be taken from concrete constructions, they may be concrete products or portions thereof, or they may be concrete or mortar specimens that have been exposed in natural environments, or to simulated service conditions, or subjected to laboratory tests.

Privacy Policy Sensors Sitemap. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The SI units in parentheses are provided for information purposes only.

If you need more info or have any questions, please note the Lab ID number 57 and contact us at:. Qualifications of Petrographers and Use of Technicians. It is a requirement that the substances in those locations must be identified using any other more definitive techniques, such as petrographic microscopy.

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Link to Active This link will always route to the current Active version of the standard. If you need more info or have any questions, please note the Lab ID number 57 and contact us at: Active view current version of standard. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Work Item s – proposed revisions of this standard. Indexes of refraction of common mineralogic types are taken from standard works on mineralogy. This practice outlines the standard procedures for performing petrographic examination of hardened concrete samples.

Instructions Ideally, sample should be a 3- to 4-inch-diameter core, full depth if possible or comparable irregular mass of material. Ground surface of concrete containing portland blast-furnace ast cement are unusually white near-free surfaces but retain greenish or blue-greenish patches, and slag particles can be seen with the stereomicroscope or polarizing microscope.

They may also be concrete products or portions thereof, or concrete or mortar specimens that have been exposed c8556 natural environments or simulated service conditions, or subjected to laboratory tests. A specific hazard statement is given in 6. The samples examined may be taken from concrete constructions, they may be concrete products or portions thereof, or they may be concrete or mortar specimens that have been exposed in natural environments, or to simulated service conditions, or subjected to laboratory tests.

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.