ASTM C642 PDF

  • No Comments

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.

Author: Dagrel Malaran
Country: Belize
Language: English (Spanish)
Genre: Finance
Published (Last): 25 May 2018
Pages: 267
PDF File Size: 14.26 Mb
ePub File Size: 8.77 Mb
ISBN: 206-8-44969-808-6
Downloads: 28009
Price: Free* [*Free Regsitration Required]
Uploader: Teshakar

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.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. To quantify the sizes of such larger pores, a desorption isotherm was measured for the mortar part of the concrete material Fig. 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.

The degree of saturation S of a concrete specimen is directly related to the measured pore volume. Register for a trial account.

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

Designate this last value A. Enter your personal account email address to request a password reset: Committee C09 has identified the location of selected changes to this test method since the last issue, C — 06, that may impact the qstm of this test method.

ASTM Volume Astm c astm normas fibra de vidrio. As such, the accurate measurement of the total void space is critical. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of this standard. Juliano row Enviado por: 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.

  ENTERPRISE APPLICATION INTEGRATION DAVID S.LINTHICUM PDF

asrm It can be used c42 determine conformance with specifications for concrete and to show differences from place to place within a mass of concrete. Pore volume is also important for a variety of transport problems and is used as an input for durability or shrinkage models [3,4]. The porosity measured increased as the pressure of vacuum saturation decreased. Click here to download full list of books. 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

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Manuscript received July 19, ; accepted for publication April 8, ; published online June 23, The degree of saturation S is the percentage of the pore volume that is occupied by a liquid phase.

Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.

No further reproductions authorized. 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 6c42 this test method may be adequate, or they may be insufficiently rigorous.

Remove the surface moisture with a towel and determine the mass of the specimen. Concrete is a porous material with a wide range of pore sizes. 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.

  KAHN ON THERMONUCLEAR WAR PDF

ASTM C642 – 13

The samples were then removed and toweled to saturated surface dry at which time their mass was recorded mSS. C [10] as compared with using the vacuum saturation approach for ast typical air-entrained INDOT class C bridge deck concrete mixture that was produced using concrete from a ready-mix concrete truck.

Designate this apparent mass D. 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.

Please login to your authorized staff account to use this feature. Although tests like water sorption ASTM C [8] measure the change in mass of a sample as a function of time as water is absorbed, Castro et al. Remember me for one month.

A superscript epsilon indicates an editorial change since the last revision or reapproval. ASTM Volume Land Use and Development.

ASTM C – Density, absortion and Voids in Hardened Concrete

Nails, Spikes, and Staples. After drying, for six of the cylinders 4 in. Originally approved in The vacuum saturation approach resulted in average porosities between A second example of where pore volume and degree of saturation is important is in the interpretation of asmt resistivity test.

The vacuum was maintained for 1 extra hour after which the vacuum was turned off and the samples remained under water for an additional h. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.