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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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. A photographic chart of materials, phenomena, and reaction products discussed in Sections 8 — 13 and Tables 1- 6 are available as Adjunct C ADJC 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. Work Item s – proposed revisions of this standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

For specimen examination, the equipments needed are stereomicroscope, dollies, 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.

The SI units in parentheses are provided for information purposes only. Historical Version s – view previous versions of standard. If you need more info or have any questions, please note the Lab ID number 57 and contact us at:. 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.

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Selection and Use of Apparatus. Work Item s – proposed revisions of this standard. Each report specifically addresses the client?

ASTM C Practice for Petrographic Examination of Concrete | CTL Grp

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.

Ground surface of concrete containing portland blast-furnace slag 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. 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. Appropriate procedures for the sampling, preparation, and examination of specimens are detailed methodically.

Visual and Stereomicroscope Examination. Indexes of refraction of common mineralogic types are taken from standard works on mineralogy.

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. This practice outlines the standard procedures for performing petrographic examination of hardened concrete samples. Link to Active This link will always route to the current Active version of the 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. It is a requirement that the substances in those locations must be identified using any other more definitive techniques, such as petrographic microscopy.

Active view current version of standard.

Selection and Use of Apparatus. 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, they may be concrete products or portions thereof, or they may be concrete or mortar specimens that have been qstm in natural environments, or to simulated service conditions, or subjected to laboratory tests.

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Visual and Stereomicroscope Examination. 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.

A specific hazard statement is asm in 6. The SI units in parentheses are provided for information purposes only.

Wstm view current version of standard. 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.

A specific hazard statement is given in 6. Reported data can include: A specific hazard statement is given in 6.

ASTM C – 17 Standard Practice for Petrographic Examination of Hardened Concrete

sstm Sample Type hardened concrete, mortar, stucco, grout, portland cement-based materials, other construction materials inorganic. Time for Results Please contact a CTLGroup chemical services representative or Project Manager to discuss your individual project needs and testing response times. Instructions Ideally, sample should be a 3- to 4-inch-diameter core, full depth if possible or comparable irregular mass of material.

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. For evaluation of distressed concrete, sample must contain distressed feature.

Qualifications of Petrographers and Use of Technicians. Other mineral admixtures with characteristic particles asttm at low magnification are recognizable. Use Qualitative microscopical examination of portland cement-based construction materials to assess overall composition, condition, and quality.