Standard Practice for Use of Foundry Sand in Structural Fill and Embankments

SIGNIFICANCE AND USE
4.1 Earthwork associated with highway construction provides an opportunity for high volume reuse of green foundry sands discarded by the foundry industry. This practice covers methods and recommendations to use of foundry sand as embankment and structural fill.  
4.2 This practice describes the unique construction considerations that may apply to foundry sands. The behavior may vary due to specific composition of the material and local conditions.  
4.3 The use of foundry sand in embankment and structural fill may be regulated by state and local codes. These codes should be consulted.  
4.4 This practice is intended for use with green foundry sands where bentonite is used as the binder. It may not be applicable for chemically bonded foundry sands.
SCOPE
1.1 This practice covers methods to use foundry sand as embankment and structural fill.  
1.2 It includes recommended construction (Section 5), compaction control (Section 6), and freeze-thaw durability (Section 7) practices.  
1.3 The engineer should be aware that foundry sand is a by-product of metal casting industries. Various state, county, and local environmental laws and regulations may apply if foundry sand is used as an alternative embankment or fill material. It is advised that foundry sand users contact state, county, and local environmental regulators to determine what requirements or limitations may exist.  
1.4 This standard applies to both green foundry sand and chemically bonded foundry sand.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.  
1.7 This guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this guide 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.

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Publication Date
31-May-2012
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ASTM D7765-12 - Standard Practice for Use of Foundry Sand in Structural Fill and Embankments
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7765 − 12
Standard Practice for
1
Use of Foundry Sand in Structural Fill and Embankments
This standard is issued under the fixed designation D7765; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This practice covers methods to use foundry sand as
C837 Test Method for Methylene Blue Index of Clay
embankment and structural fill.
D653 Terminology Relating to Soil, Rock, and Contained
1.2 It includes recommended construction (Section 5), com-
Fluids
pactioncontrol(Section6),andfreeze-thawdurability(Section
D698 Test Methods for Laboratory Compaction Character-
7) practices.
3
istics of Soil Using Standard Effort (12 400 ft-lbf/ft (600
3
kN-m/m ))
1.3 The engineer should be aware that foundry sand is a
by-product of metal casting industries. Various state, county, D1556 Test Method for Density and Unit Weight of Soil in
Place by Sand-Cone Method
and local environmental laws and regulations may apply if
foundry sand is used as an alternative embankment or fill D1557 Test Methods for Laboratory Compaction Character-
3
istics of Soil Using Modified Effort (56,000 ft-lbf/ft
material. It is advised that foundry sand users contact state,
3
county, and local environmental regulators to determine what (2,700 kN-m/m ))
D1883 Test Method for CBR (California Bearing Ratio) of
requirements or limitations may exist.
Laboratory-Compacted Soils
1.4 This standard applies to both green foundry sand and
D2216 Test Methods for Laboratory Determination of Water
chemically bonded foundry sand.
(Moisture) Content of Soil and Rock by Mass
1.5 The values stated in SI units are to be regarded as D2974 Test Methods for Moisture,Ash, and Organic Matter
standard. No other units of measurement are included in this
of Peat and Other Organic Soils
standard. D4327 Test Method for Anions in Water by Suppressed Ion
Chromatography
1.6 This standard does not purport to address all of the
D5080 Test Method for Rapid Determination of Percent
safety concerns, if any, associated with its use. It is the
Compaction
responsibility of the user of this standard to establish appro-
D5918 Test Methods for Frost Heave and Thaw Weakening
priate safety and health practices and determine the applica-
Susceptibility of Soils
bility of regulatory limitations prior to use.
D6026 Practice for Using Significant Digits in Geotechnical
1.7 This guide offers an organized collection of information
Data
or a series of options and does not recommend a specific
D6938 Test Method for In-Place Density and Water Content
course of action. This document cannot replace education or
of Soil and Soil-Aggregate by Nuclear Methods (Shallow
experience and should be used in conjunction with professional
Depth)
judgment. Not all aspects of this guide may be applicable in all
G51 Test Method for Measuring pH of Soil for Use in
circumstances. This ASTM standard is not intended to repre-
Corrosion Testing
sent or replace the standard of care by which the adequacy of
G187 Test Method for Measurement of Soil Resistivity
a given professional service must be judged, nor should this
Using the Two-Electrode Soil Box Method
document be applied without consideration of a project’s many
unique aspects. The word “Standard” in the title of this
3. Terminology
document means only that the document has been approved
3.1 For definitions related to geotechnical properties, see
through the ASTM consensus process.
Terminology D653.
1
This practice is under the jurisdiction of ASTM Committee D18 on Soil and
2
Rock and is the direct responsibility of Subcommittee D18.14 on Geotechnics of For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Sustainable Construction. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved June 1, 2012. Published August 2012. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
D7765-12. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D7765 − 12
3.2 Definitions of Terms Specific to This Standard: 5.1.4 Foundrysandmaterialshouldbespreadintolooselifts
3.2.1 active clay content, n—the clay fraction that still can of approximately 20 cm thickness. The engineer may consider
thicker lift dimensions if it can be satisfactorily demonstrated
be hydrated.
with a test section that adequate compaction can be achieved
3.2.2 binders, n—additives used to hold the sand in the
...

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