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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Invaluable tool for evaluating concrete distress and construction materials issues, such as: Active view current version of standard. Indexes of refraction of common mineralogic types are taken from standard works on mineralogy. Time for Results Please contact a CTLGroup chemical services representative or Project Manager to discuss your individual project needs and testing response times. The SI units in parentheses are provided for information purposes only.

Link to Active This link will always route to the current Active version of the standard. Results Produced Written, photodocumented report; may contain tabulated data.

Link to Active This link will always route to the current Active version of the standard. Active astj current version of standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

A specific hazard statement is given in 6. Qualifications of Petrographers and Use of Technicians.

The samples examined satm 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. Sample Type hardened concrete, mortar, stucco, grout, portland cement-based materials, other construction materials inorganic.

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

In concrete that has not oxidized the c865 of slag may be inferred from the green or blue color of the paste. Sections broken normal to placement in conventionally placed concrete with normal bond tend to have aggregate knobs abundant on the bottom of the upper piece as cast and sockets abundant on the top of the lower piece as cast.

This abstract is a brief summary of the referenced standard.

For evaluation of distressed concrete, sample must contain distressed feature. 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. Appendix X1 outlines an c586 acetate method for identifying locations where alkali-silica gel may be present.

Privacy Policy Sensors Sitemap. This practice outlines the standard procedures for performing petrographic examination of hardened concrete samples.

Sections sawed in the plane of bedding normal to the direction of placement are likely to have inconspicuous orientation. A photographic chart of materials, phenomena, and reaction products discussed in Sections 8 — 13 and Tables 1- 6 are asmt as Adjunct C ADJC This practice applies to samples of all types of hardened hydraulic-cement mixtures, including concrete, mortar, grout, asstm, stucco, terrazzo, and the like.

Use Qualitative microscopical examination of portland cement-based construction materials to assess overall composition, condition, and quality.

The SI units in aatm are provided for information purposes only. Work Item s – proposed revisions of this standard. They may also be concrete products or portions thereof, or concrete or mortar specimens that have been exposed in natural environments or simulated service conditions, or subjected to laboratory tests.

Project specifications such as maximum water-cement ratio, minimum air content, and concrete mix design are also helpful. If you need more info or have any questions, please note the Lab ID number 57 and contact us at: Selection and Use of Apparatus.

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

It is a requirement that the substances in those locations must be identified using any other more definitive techniques, such as petrographic microscopy. Each report specifically addresses the client? Other mineral admixtures d856 characteristic particles visible at low magnification are recognizable. The SI units in parentheses are provided for information purposes only.