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ASTM C805 EPUB DOWNLOAD

6 Apr 1This FOP is based on ASTM C and has been modified per WSDOT standards. To view the redline modifications, contact the. WSDOT. ASTM Cpdf – Download as PDF File .pdf), Text File .txt) or read online. Qty. Model, Description. 1, Choose One: HH, Humboldt concrete rebound hammer. H, Standard concrete test hammer, type n. HLM, Light.

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Therefore, tests should be made with the same instrument in order to compare results.

The astm c805 of the rebound hammer shall have been verified in accordance with 6. Locations where strengths are to be estimated using the developed correlation shall have similar astm c805 texture and shall have been exposed to similar conditions as the locations where correlation cores were taken.

Note 2 — The astm c805 of molded test specimens to develop a correlation may not provide a reliable relationship because the surface astm c805 and depth of carbonation of molded specimens are not usually representative of astm c805 in-place concrete. Establish the relationship by correlating rebound numbers measured on the structure with the measured strengths of cores taken from corresponding locations see Note 2.

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. At least two replicate cores shall be taken from at least six locations with different rebound numbers. Referenced Documents asm separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

astm c805 Note 1 — See ACI These factors need to be considered in xstm rebound numbers. Combining values from the two systems may result in non-conformance with the standard.

The values stated in each system may not be exact equivalents; therefore, astm c805 system shall be used independently of the other. Astmm the rebound number if affected by the orientation of the instrument during testing, the strength relationship is applicable for the same orientation as used to obtain the correlation date see Note 3.

Note 3 — The use of correction ast to account for instrument astm c805 may reduce the reliability of strength estimates if the correlation is developed for a different orientation than used for testing. Select test locations so that a wide range of rebound numbers astm c805 the structure is obtained.

ASTM C, Test equipment Controls

Link to Active This link will always astm c805 to axtm current Active version of the standard. Work Item s – proposed revisions of this standard.

astm c805 If more than one instrument is to be used, perform comparative tests on a range of typical concrete surfaces so as to determine the magnitude of the differences astm c805 be expected in the readings of different instruments. Historical Version s – view previous versions of standard.

To use this test method to estimate strength, it is necessary to establish a relationship between strength and rebound number for a given concrete and given apparatus see Note astm c805.