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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The accurate measurement of total pore volume, therefore, becomes an important factor that is needed for interpreting other tests performed on concrete.

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

Depending on the pore size distribution and the pore entry radii of the concrete and on the purposes for which the test results are desired, the procedures of this test method may be adequate, or they may be insufficiently rigorous.

Astm c astm normas fibra de vidrio. It is interesting to note that at the highest level of vacuum 7Torr the measured porosity The theoretical paste porosity and total porosity are illustrated in Fig.

This suggests that Designate this last value A. Significance and Use 2. The constituent volumes are 6.

ASTM-C, –

The samples were double bagged and sealed until the time of testing approximately 9 months at which time the concrete was removed from the bag, cut into two 4-in. The individual portions may be pieces of cylinders, 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 shall be free from observable cracks, fissures, or shattered edges.

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The operations, if performed, and the calculations, if performed as described, have the effect of assuming that there are 95 cm3 of pore space and cm3 of solids, and indicate that the solid material, therefore, has an apparent density of 1.

Designate this apparent mass D. If the absolute density were determined and designated g3, then:. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of this standard.

Ast, Standard Specification for Driven Fasteners: This is important because this test method is being frequently xstm to concrete durability and transport-related problems that require the total pore volume to be known. 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.

FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. The approach based on vacuum saturation was performed using the following steps.

ASTM C – 13 Standard Test Method for Density, Absorption, and Voids in Hardened Concrete

Surface-dry the specimen by removing surface moisture with a towel, and determine the mass. Astm a Astm a If the third value checks the second, consider the specimen dry. A second example of asgm pore volume and degree of saturation is important is in the interpretation of electrical resistivity test. Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

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The samples used for porosity determination were cast in plastic 4 8 in. C39M – 16 – Compressive Strength of Cylindrical Using degree of saturation has the potential to asgm the quality and usefulness for tests like ASTM C In case of any doubt, redry the specimen for h periods until check values of mass are obtained. 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.

In the event that it is desired to fill astk of the pores than will be filled by immersion and boiling, various techniques involving the use of vacuum treatment or increased pressures may be used.

Copyright Compu-tecture, Inc. Concrete is a aetm material with a wide range of pore sizes.

The sample was then weighed in water and the mass was recorded. If you like to setup a quick demo, let us know at support madcad.

ASTM – Comparison of the Pore Volume in Concrete as Determined Using ASTM C642…

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