ASTM D5239 - 12 Standard Practice for Characterizing Fly Ash for Use in Soil Stabilization

ASTM D5239 - 12

Standard Practice for Characterizing Fly Ash for Use in Soil Stabilization

Active Standard ASTM D5239 | Developed by Subcommittee: D18.15

Book of Standards Volume: 04.08

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Significance and Use

4.1 This practice is intended for use with fly ash that can be used separately or along with other stabilizing admixtures to improve soil properties.

4.2 The characterization of the physical and chemical properties of the fly ash shall assist in the evaluation of the fly ash for soil stabilization.

4.3 This practice is not intended to limit the flexibility of design in soil stabilization. The degree of success attained in soil stabilization is highly dependent on the particular combination of soil, fly ash, and other additives and the construction procedure used. Demonstrated sound engineering procedures that result in appropriate physical characteristics are acceptable. The selection of appropriate materials, applicable tests, acceptance criteria, and specification is the responsibility of the design engineer.

Note 1—The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.

1. Scope

1.1 This practice covers procedures for characterizing fly ash to be used in soil stabilization. This practice lists representative test methods for determining the chemical, physical, and cementitious properties of fly ash. A broad guideline is provided in Appendix X1 that explains the significance of these properties in soil stabilization.

1.2 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

1.2.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.

1.3 The values stated in SI units are to be regarded as the standard. The inch-pound equivalents are shown for information only.

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 and health practices and determine the applicability of regulatory requirements prior to use.

1.5 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process..

1.6 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.

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

C25 Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime

C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)

C191 Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle

C265 Test Method for Water-Extractable Sulfate in Hydrated Hydraulic Cement Mortar

C305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency

C311 Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete

C593 Specification for Fly Ash and Other Pozzolans for Use With Lime for Soil Stabilization

C821 Specification for Lime for Use with Pozzolans

D653 Terminology Relating to Soil, Rock, and Contained Fluids

D1293 Test Methods for pH of Water

D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction

D5370 Specification for Pozzolanic Blended Materials in Construction Applications

D6026 Practice for Using Significant Digits in Geotechnical Data

ICS Code

ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works)

UNSPSC Code

UNSPSC Code 30121901(Soil stabilizer)

Referencing This Standard

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DOI: 10.1520/D5239-12

Citation Format

ASTM D5239-12, Standard Practice for Characterizing Fly Ash for Use in Soil Stabilization, ASTM International, West Conshohocken, PA, 2012, www.astm.org