ASTM C295 PDF

This standard is issued under the fixed designation C ; the number 1 This guide is under the jurisdiction of ASTM Committee C09 on Concrete and. As part of assessing the quality of an aggregate source, ASTM C may be required to determine if substances are present in the aggregate that are. ASTM C/CM: Standard Guide for Petrographic Examination of Aggregates for Concrete.

Author: Zule Zulkiktilar
Country: Norway
Language: English (Spanish)
Genre: Software
Published (Last): 13 October 2013
Pages: 70
PDF File Size: 2.19 Mb
ePub File Size: 20.8 Mb
ISBN: 606-1-72482-435-2
Downloads: 94182
Price: Free* [*Free Regsitration Required]
Uploader: Gardalmaran

Print and complete the following order form.

Test Methods

Adtm materials containing these constituents include: This will ultimately destroy the concrete because such aggregates cannot be protected by adequately air-entrained mortar. Standard Practice for Petrographic Examination of Hardened Concrete This is the industry standard throughout the world for investigating a multitude of problems. Order Form 2 Email complete form to contact listed below.

In situ chemical analysis. Aggregate constituents are described and classified, and relative percentages determined. Historical Version s — view previous versions of standard. If you need more info or have any questions, please note the Lab ID number 58 and c29 us at:.

Petrographic Testing Methods | DRP Consulting

Pertinent background information, including results of prior testing, should be made available. Standard Guide for Petrographic Examination of Aggregates for Concrete This examination identifies the rocks and minerals present in coarse and fine aggregates. Criteria are available for identifying the minerals in the list above by their optical properties or by XRD Historical Version s – view previous versions of standard.

Flat, elongated, and thin chip-like particles in aggregate increase the mixing water requirement and hence decrease concrete strength. This is the industry standard throughout the world for investigating a multitude of problems.

Petrographic examinations provide identification of types and varieties of rocks present in potential aggregates. ASTM C qualitatively and quantitatively evaluates sieved aggregate for physical or mineralogical characteristics that may influence its performance in concrete.

Accredited Materials Testing Laboratory

This examination identifies the rocks and minerals present in coarse and fine aggregates. Time for Results Please contact a CTLGroup chemical services representative or Project Manager to discuss your individual project needs and testing response times. In such a case, the purchaser and the consultant should together determine the kind, extent, and objectives of the examination and analyses to be made, and should record c95 agreement in writing.

  ISLA DESIERTA ARLT PDF

Work at DRP varies widely in focus, scope and types of materials. We most commonly perform the following tests: Flat, elongated, and thin chip-like particles in aggregate increase the mixing water astmm and hence decrease concrete strength.

Instructions Detailed report expressing composition and physical characteristics of the aggregate. Finely porous aggregates near the concrete surface are also likely to form popouts, which are blemishes on pavements and walls.

Materials that commonly find their way to our shop include: However, as noted above, identification of every rock and mineral present in an aggregate source is not required. Examination in both reflected and transmitted light may be necessary astj provide data for these identifications. Medias this blog was made to help people to easily download or read PDF files.

Criteria are available for identifying rocks by their mineral composition and texture 4.

ASTM C qualitatively and quantitatively evaluates sieved aggregate for physical or mineralogical characteristics that may influence its performance in concrete.

Work Item s – proposed revisions of this standard. Standard Guide for Petrographic Examination of Aggregates for Concrete This examination identifies the rocks and minerals present in coarse and fine aggregates. Combining values from the two systems may result in non-conformance with the standard.

ASTM C – 08 Standard Guide for Petrographic Examination of Aggregates for Concrete

The test provides key information on not only how much air is present, but whether the size and spacing of the voids are suitable for adtm protection against freeze-thaw damage. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Pertinent background information, including results of prior testing, should be made available.

As part of assessing the quality of an aggregate source, ASTM C may be required to determine if substances are present in the aggregate that are. The employer should tell the petrographer, in as much detail as necessary, the purposes and objectives of the examination, the kind of information needed, and the extent of examination desired.

  BIANCIARDI LA VITA AGRA PDF

Alkali-silica reactive constituents found in aggregates include: Use As part of assessing the quality of an aggregate source, ASTM C atm be required to determine if substances are present in the aggregate that are potentially deleterious to asm.

At least particles are identified for each sieve size in a gradation. Work Item s — proposed revisions of this standard. If the c95 in which the aggregate may be used will be exposed to freezing and thawing in a critically saturated condition, finely porous and highly weathered or otherwise altered rocks should be identified because they will be especially susceptible to damage by freezing and thawing and will cause the aggregate portion of the concrete to fail in freezing and thawing.

If you need more info or have ast, questions, please note the Lab ID number 58 and contact us at:. Sample mass should be sufficient to provide at least particles of each sieve size, with additional sample asrm for related tests.

Examination in both reflected and transmitted light may be necessary to provide data for these identifications. This test is essential f295 understanding the aggregates that are used to produce concrete and can be the only method aztm of detecting components that may have adverse reactions from alkali-aggregate reactions, freeze-thaw damage, or other mechanisms such as popouts and sulfuric acid attack associated with iron sulfides.

In situ chemical analysis. 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. However, as noted above, identification of every rock and mineral present in an aggregate source is not required.

ASTM C also can be used to evaluate compliance aztm the bulk aggregate to local, state, or federal specifications for the project, for the presence and abundance of deleterious materials.

Instructions Detailed report expressing composition and physical characteristics of the aggregate. The test method is also used for understanding mortar compositions in historical ast where preservation and restoration are the priority.