Significance and Use
4.1 This guide provides guidance for the characterization of coal fly ash or clean coal combustion fly ash for potential uses in which absorption, cementitious activity, pozzolanic activity, pH adjustment, heat rise, or stabilization and solidification properties may be desired.
1.1 This guide recommends standards for the characterization of fly ash from the combustion of coal, fly ash from coal combusted in the presence of alkaline materials, and fly ash from combusted coal in which the flue gases have been treated with alkaline materials in the presence of the fly ash.
1.2 This guide provides recommended and optional test methods for fly ash evaluation. Acceptance criteria can be negotiated between the producer and the user according to the potential end use.
1.3 The coal fly ash and clean coal combustion fly ash of this guide do not include the following:
1.3.1 Dusts from kilns producing products such as lime, portland cement, activated clays, etc.;
1.3.2 By-products of flue gas desulflurization that are not collected with the primary fly ash removal equipment such as the baghouse or electrostatic precipitator; and
1.3.3 Fly ash or other combustion products derived from the burning of waste; municipal, industrial, or commercial garbage; sewage sludge or other refuse, or both; derived fuels; wood; wood waste products; rice hulls; agriculture waste; or other non-coal fuels or other such fuels blended with coal, or some combination thereof.
1.4 Fly ash may contain some trace elements that may affect performance or potential end use.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C22/C22M Specification for Gypsum
C25 Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime
C51 Terminology Relating to Lime and Limestone (as used by the Industry)
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
C110 Test Methods for Physical Testing of Quicklime, Hydrated Lime, and Limestone
C114 Test Methods for Chemical Analysis of Hydraulic Cement
C150 Specification for Portland Cement
C191 Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
C311 Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
C400 Test Methods for Quicklime and Hydrated Lime for Neutralization of Waste Acid
C593 Specification for Fly Ash and Other Pozzolans for Use With Lime for Soil Stabilization
C595 Specification for Blended Hydraulic Cements
C602 Specification for Agricultural Liming Materials
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
D546 Test Method for Sieve Analysis of Mineral Filler for Bituminous Paving Mixtures
D1973 Guide for Design of a Liner System for Containment of Wastes
D2795 Test Methods for Analysis of Coal and Coke Ash
D3178 Test Methods for Carbon and Hydrogen in the Analysis Sample of Coal and Coke
D3682 Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
D3683 Test Method for Trace Elements in Coal and Coke Ash by Atomic Absorption
D4326 Test Method for Major and Minor Elements in Coal and Coke Ash By X-Ray Fluorescence
D5239 Practice for Characterizing Fly Ash for Use in Soil Stabilization
D5681 Terminology for Waste and Waste Management
E1266 Practice for Processing Mixtures of Lime, Fly Ash, and Heavy Metal Wastes in Structural Fills and Other Construction Applications
characterization of clean coal combustion fly ash; characterization of clean coal fly ash; characterization of coal fly ash; fly ash for potential use ;
ICS Number Code 75.080 (Petroleum products in general)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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