Active Standard ASTM C821 | Developed by Subcommittee: C07.02
Book of Standards Volume: 04.01
This specification covers all types of commercial hydrated lime such as: high-calcium, magnesium, or dolomitic-hydrated lime. This lime is used with pozzolans. The lime shall conform to the required physical and chemical limits: chemical factor, blaine fineness, and pozzolanic receptivity index. The following test methods shall be done: determination of calcium oxide, magnesium oxide, and carbon dioxide; calculation of chemical factor; blaine fineness; pozzolanic receptivity index; lime-pozzolan strength; and lime-pozzolan-aggregate strength and freeze-thaw resistance.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers all types of commercial hydrated lime such as: high-calcium, magnesium, or dolomitic-hydrated lime. By-product limes and slaked quick limes in dry, wet, or slurried form are also included.
1.2 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.
1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C25 Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime
C50 Practice for Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone Products
C51 Terminology Relating to Lime and Limestone (as used by the Industry)
C204 Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus
C593 Specification for Fly Ash and Other Pozzolans for Use With Lime for Soil Stabilization
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 30111604(Hydrated lime)