ASTM C780-12
Historical Standard: ASTM C780-12 Standard Test Method for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry
SUPERSEDED (see Active link, below)
ASTM C780
1. Scope
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 This test method permits comparisons of mortars made from different materials under simulated field conditions. It is also used to establish baseline values for comparative evaluation of field mortars.
1.3 Construction Evaluation Use of this method in the field provides a means for quality assurance of field-mixed mortar. It includes methods for verifying the mortar mix proportions, comparing test results for field mortars to preconstruction testing, and determining batch-to-batch uniformity of the mortar.
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 .
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 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 .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
C128 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate
C173/C173M Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method
C187 Test Method for Amount of Water Required for Normal Consistency of Hydraulic Cement Paste
C231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
C270 Specification for Mortar for Unit Masonry
C470/C470M Specification for Molds for Forming Concrete Test Cylinders Vertically
C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
C617 Practice for Capping Cylindrical Concrete Specimens
C1093 Practice for Accreditation of Testing Agencies for Masonry
C1180 Terminology of Mortar and Grout for Unit Masonry
C1231 Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders
C1586 Guide for Quality Assurance of Mortars
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
Keywords
aggregate ratio; air content; compressive strength; concrete penetrometer; cone penetrometer; consistency; consistency retention; mortar;
ICS Code
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
DOI: 10.1520/C0780-12
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