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ASTM C567/C567M-19
Standard Test Method for Determining Density of Structural Lightweight Concrete
Translate name
STANDARD published on 1.12.2019
The information about the standard:
Designation standards: ASTM C567/C567M-19
Publication date standards: 1.12.2019
SKU: NS-983976
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM C567/C567M-19 :
Keywords:
equilibrium density, lightweight concrete, oven-dry density,, ICS Number Code 91.100.30 (Concrete and concrete products)
Additional information
| Significance and Use | ||||||||||||||||||
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5.1 The measured or calculated equilibrium density of structural lightweight concrete determines whether specified density requirements have been met. Unless otherwise specified, determine equilibrium density by calculation using the procedures in 9.2. 5.2 Test Method C138/C138M shall be used to determine the density of freshly mixed lightweight concrete for compliance with concrete placement specifications. Note 1: The fresh density of lightweight aggregate concrete is
a function of mixture proportions, air content, water demand, and
the specific density and moisture content of the lightweight
aggregate. Decrease in density of a specific lightweight concrete
is due to moisture loss that, in turn, is a function of aggregate
moisture content, ambient conditions, and the ratio of the surface
area to the volume of the concrete member. For most structural
lightweight concretes, equilibrium density is approached at about
90 days. For most high-strength lightweight concretes, equilibrium
density is approached at about 180 days. Extensive tests
demonstrate that despite variations in the initial moisture content
of lightweight aggregate, the equilibrium density will be
approximately 50 kg/m3 [3.0 lb/ft3] greater
than the oven-dry density.
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| 1. Scope | ||||||||||||||||||
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1.1 This test method provides procedures to determine the oven-dry and equilibrium densities of structural lightweight concrete. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Some values have only SI units because the inch-pound equivalents are not used in practice. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||||||||||||
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