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ASTM C780-00

Historical Revision

Standard Test Methods for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry

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1.1 This test method covers procedures for the sampling and testing of mortars for composition and for their plastic and hardened properties, either before or during their actual use in construction.

1.2 Preconstruction evaluation of mortars facilitates a comparison of mortar systems and an approximation, by more complete identification, of the mortar mixture which will be produced at the construction project. The preconstruction laboratory investigation allows establishment of the compatibility of the individual materials in the mortar and the general strength characteristics of the mixture.

1.3 Construction-site testing procedures allow to establish conformance to the proportion specifications and quality control of mortar production. Mix-composition measurements allow the rapid assessment of conformance with the proportion specification and quality control, whereas later-age strength testing provides verification that the mortar ingredients are compatible and are performing normally.

1.4 The test results obtained under this test method are not required to meet the minimum compressive values in accordance with the property specifications in Specification C270.

This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. For specific hazards statements, see Section 8.


SDO ASTM: ASTM International
Document Number C780
Publication Date Sept. 10, 2000
Language en - English
Page Count 16
Revision Level 00
Supercedes
Committee C12.02
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July 1, 2023 C0780-23 Revision
June 15, 2020 C0780-20 Revision
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Aug. 15, 2018 C0780-18A Revision
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Sept. 10, 2000 C0780-00 Revision