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Significance and Use
4.1 This test method provides a procedure for determining the compliance of steel slags and other materials with specifications, such as Specification , that limit permissible expansion of base and subbase aggregates containing components subject to hydration.
4.2 This test method can also be used to evaluate the effectiveness of aging or other treatments for reducing the expansive potential of such materials.
4.3 Test results have not been correlated with field performance, and values obtained do not necessarily indicate expansion that may occur in service conditions.
Note 2: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.
1.1 This test method covers the determination of potential volume expansion of dense graded compacted aggregates that contain components susceptible to hydration and consequent volume increase, such as the free calcium and magnesium oxides that occur in some industrial by-products.
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.
Note 1: Sieve size is identified by its standard designation in Specification . The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 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.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C702/C702M Practice for Reducing Samples of Aggregate to Testing Size
D75/D75M Practice for Sampling Aggregates
D698 Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft3 (600 kN-m/m3))
D1883 Test Method for California Bearing Ratio (CBR) of Laboratory-Compacted Soils
D2940/D2940M Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
ICS Number Code 91.100.30 (Concrete and concrete products)
UNSPSC Code 30111800(Aggregates)
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ASTM D4792 / D4792M-13(2019), Standard Test Method for Potential Expansion of Aggregates from Hydration Reactions, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top