ASTM D5779-95a

Standard Test Method for Field Determination of Apparent Specific Gravity of Rock and Manmade Materials for Erosion Control

SCOPE
1.1 This test method covers the determination of the specific gravity of rock for erosion control. This test method can be used for all types of materials, both naturally occurring or manmade.  
1.2 This is a field test method to measure apparent specific gravity. For laboratory determination of bulk specific gravity see Test Methods C97.  
1.3 The values stated in SI units are to be regarded as 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Dec-1995
• Technical Committee: D18 - Soil and Rock
• Drafting Committee: D18.17 - Rock for Erosion Control

Relations

• Replaced By: ASTM D5779-95a(2001) - Standard Test Method for Field Determination of Apparent Specific Gravity of Rock and Manmade Materials for Erosion Control
• Effective Date: 10-Dec-1995

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5779 – 95a
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Field Determination of Apparent Specific Gravity of Rock
and Manmade Materials for Erosion Control
This standard is issued under the fixed designation D 5779; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope similar to the definition of apparent specific gravity in Termi-
nology D 653 except that non-distilled water is used for the test
1.1 This test method covers the determination of the specific
and the test can be run under a variety of temperatures.
gravity of rock for erosion control. This test method can be
used for all types of materials, both naturally occurring or
4. Summary of Test Method
manmade.
4.1 A specimen (block, chunk, slab, or piece) of rock or
1.2 This is a field test method to measure apparent specific
manmade material is weighed in air and then weighed again
gravity. For laboratory determination of bulk specific gravity
while immersed in water. Using the weights, the field specific
see Test Methods C 97.
gravity is calculated. The determined specific gravity can then
1.3 The values stated in SI units are to be regarded as the
be used to determine a mass per unit volume.
standard.
1.4 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 Specific gravity is one factor used to determine the
responsibility of the user of this standard to establish appro-
required mass of individual particles used as gabion-fill, riprap,
priate safety and health practices and determine the applica-
armor stone, breakwater stone, or other types of rock products
bility of regulatory limitations prior to use.
used for erosion control applications, and acceptibility of these
2. Referenced Documents materials for their intended use.
2.1 ASTM Standards:
6. Apparatus
C 97 Test Methods for Absorption and Bulk Specific Grav-
2 6.1 Balance—A balance or scale conforming to the require-
ity of Dimension Stone
ments of Specification D 4753 readable (with no estimation) to
C 670 Practice for Preparing Precision and Bias Statements
3 1 % or better of the mass of the test specimen. For masses over
for Test Methods for Construction Materials
50 kg a load-cell, spring scale, or some other device accurate
D 653 Terminology Relating to Soil, Rock, and Contained
3 to within 1 % of the mass may be used.
Fluids
6.2 Specimen Container—A wire basket or sling or pan
D 4753 Specification for Evaluating, Selecting, and Speci-
capable of holding a specimen of rock and suspending it in
fying Balances and Scales for Use in Testing Soil, Rock,
3 water.
and Related Construction Materials
6.3 Water—A volume of water large enough to submerge
D 4992 Practice for Evaluation of Rock to Be Used for
4,5 the specimen and its container.
Erosion Control
7. Sampling
3. Terminology
7.1 A source of rock to be sampled shall be guided by
3.1 Definitions:
Practice D 4992. A source that is macroscopically uniform in
3.1.1 field apparent specific gravity—the ratio of the weight
color, texture, mineralogy, or some other visual property shall
in air of a unit volume of impermeable rock or manmade
be represented by a sample consisting of a minimum of five
material, to the weight of an equal volume of water. This is
specimens of rock. A macroscopically nonuniform source shall
be represented by a minimum of eight samples of rock. Rock
This test method is under the jurisdiction of ASTM Committee D-18 on Soil
types that comprise less than 5 % of the total source, as
and Rock and is the direct responsibility of Subcommittee D18.17 on Rock for
determined from their macroscopic properties, may be ignored,
Erosion Control.
Current edition approved Dec. 10, 1995. Published March 1996. Originally unless their presence will greatly affect the test results and
published as D 5779 – 95. Last previous edition D 5779 – 95.
subsequent proposed use of the rock. Sample the rock types in
Annual Book of ASTM Standards, Vol 04.07.
their approximate proportion to the types that occur at the
Annual Book of ASTM Standards, Vol 04.02.
source.
Annual Book of ASTM Standards, Vol 04.08.
Annual Book of ASTM Standards, Vol 04.09.
D 5779
NOTE 5—The average specific gravity shall be calculated for a sp
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