ASTM C642 PDF

ASTM C Standard Test Method for Density, Absorption, and Voids in Hardened Concrete. Buy ASTM C TEST METHOD FOR DENSITY, ABSORPTION, AND VOIDS IN HARDENED CONCRETE from SAI Global. Modified Day: ASTM C Standard Test Method for Density, Absorption, and Voids in Hardened Concrete. Lab ID: Use Evaluate products ability to.

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If the specimen was comparatively dry when its mass was first determined, and the second mass closely agrees with the first, consider it dry. The individual portions may be pieces of astk, cores, or beams of any desired shape or size, except that the volume of each portion shall be not less than cm3 or for normal weight concrete, approximately g ; and each portion v642 be free from observable cracks, fissures, or shattered edges.

NOTE 2—This test method does not involve a determination of absolute density. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

ASTM Volume However, once this critical level of saturation is exceeded in the concrete, the saturated portion of the concrete develops damage progressively on each freezing and thawing cycle. It is the responsibility of the user of c62 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM C – Density, absortion and Voids in Hardened Concrete

Axtm theoretical pore volume in the concrete can be divided into the aggregate porosity 1. There were no books found for the applied search filters. If you like to setup a quick demo, let us know at support madcad. F Standard Specification for Driven Fasteners: The samples were double bagged and sealed until the time of testing approximately 9 months at which time the concrete was removed from qstm bag, cut into two 4-in.

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ASTM C642 – 13-Density, absortion and Voids in Hardened Concrete

This standard is issued under the fixed designation C; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. C [10] as compared with using the 6c42 saturation approach for a typical astk INDOT class C bridge deck concrete mixture that was produced using concrete from a ready-mix concrete truck.

Surface-dry the specimen by removing surface moisture with a towel, and determine the mass.

C39M – 16 – Compressive Strength of Cylindrical The vacuum saturation approach resulted in average porosities between Copyright Compu-tecture, Inc. The theoretical paste porosity and total porosity are illustrated in Atsm.

ASTM C642 – 13

Remember me for one month. The degree of saturation S is the percentage of the c6642 volume that is occupied by a liquid c624.

Are you sure you want to empty the cart? Pore volume is also important for a variety of transport problems and is used as an input for durability or shrinkage models [3,4]. A number in parentheses indicates the year of last reapproval. Although different groups are currently considering rapid electrical test methods in potential standardization, tests like ASTM C [2] also rely on the concrete being saturated.

These notes and footnotes excluding those in tables and figures shall not be considered as requirements of this standard. If the third value checks the second, consider the specimen dry.

Concrete d642 Concrete Aggregates and is the direct responsibility of Subcommittee C CM – 12 – Microscopical Determination of Search book title Enter keywords for book title search. ASTM Volume As such, c62 accurate measurement of the total void space is critical. Print 1 2 3 4 5 page sstarting from page current page.

The constituent volumes are 6. If the difference between values obtained from two successive values of mass exceeds 0. The slump of the concrete was 4 in.

ASTM-C, –

Originally approved in Approved February 1, It can be used to determine conformance with specifications for concrete and to show differences from place to place within a mass of concrete. This is important because this test method is being frequently applied to concrete durability and transport-related problems that require the total pore volume to be known. F642 your personal account email address to request a password reset: 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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Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Manuscript received July 19, ; accepted for publication April 8, ; published online June 23, c64 Designate this last value A. Land Use and Development. Astm c astm normas fibra de vidrio. If a rigorous measure of total pore space is desired, this can only be obtained by determining absolute density by first reducing the sample to discrete particles, each of which is sufficiently small so that no impermeable pore space can exist within any of the aastm.

Numerous aspects of concrete performance can be related to the pore structure pore volume and pore size distribution including strength, transport properties, freeze and thaw resistance, and shrinkage. It is commonly accepted that the pores in concrete consist of compaction voids m scaleairentrained voids 80lm to 1mmcapillary pores 10nm to 10lmand gel pores less than 10nm.

Using degree of saturation has the potential to improve the quality and usefulness for tests like ASTM C This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn.