ASTM D5313-92(1997)

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Designation: D 5313 – 92 (Reapproved 1997)
Standard Test Method for
Evaluation of Durability of Rock for Erosion Control Under
Wetting and Drying Conditions
This standard is issued under the fixed designation D 5313; 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 deterioration due to weathering action affects the stability of
the integral placement of rock for erosion control and hence,
1.1 This test method covers procedures for evaluating the
the stability of construction projects, shorelines, and stream-
durability of rock for erosion control when exposed to wetting
banks.
and drying conditions.
3.2 This test method is designed to determine the effects on
1.2 The values stated in SI units are to be regarded as the
the individual pieces of rock for erosion control of wetting and
standard.
drying action and the resistance of the rock to deterioration.
1.3 This standard does not purport to address all of the
This test method was developed to be used in conjunction with
safety concerns, if any, associated with its use. It is the
additional test methods listed in Practice D 4992. This test
responsibility of the user of this standard to establish appro-
method does not provide an absolute value but rather an
priate safety and health practices and determine the applica-
indication of the resistance to wetting and drying; therefore, the
bility of regulatory limitations prior to use.
results of this test method are not to be used as the sole basis
2. Referenced Documents
for the determination of rock durability.
2.1 ASTM Standards:
4. Apparatus
D 4992 Practice for Evaluation of Rock to be Used for
4.1 Diameter Circular Diamond Saw, 14 in. (355.60 mm)
Erosion Control
capable of sawing rock, of the type required for Practice
D 5121 Practice for the Preparation of Rock Slabs for
D 5121.
Durability Testing
4.2 Containers, to hold the specimens fully immersed in
3. Significance and Use
potable water. These containers must be non-reactive and
unbreakable.
3.1 Rock used for erosion control may consist of several
4.3 Oven, capable of drying the specimen to a constant mass
types, depending on potential use. One type may be armor
at a temperature of 110 6 5°C.
stone weighing from one to three tons or breakwater stone
4.4 Drying Apparatus, such as infra-red heat lamps (150 W)
weighing three to twenty tons placed along shorelines or in
or oven set at 65 6 5°C.
jetties to protect the shoreline from erosion due to the action of
4.5 Stereomicroscope, or other suitable magnifying device
large waves. Another type may be riprap usually weighing less
capable of at least 203 magnification will be required for
than a ton and placed along river banks or on the slopes of
examination of the specimen prior to and after testing.
dams to prevent erosion due to run-off, wave action or
4.6 Balance, capable of determining the mass of the speci-
stream-flow. A third type may be gabion-fill weighing less than
men to the nearest 0.1 % of the total mass will be required.
fifty pounds and placed in baskets of wire or other suitable
4.7 Camera, capable of producing good quality, color pho-
material. These baskets are then tied together to form an
tographs will be required for “before” and “after” photographs.
integral structure designed to resist erosion along stream banks
and around bridge piers. No matter what form it takes, rock for
5. Sampling, Test Specimens, and Test Units
erosion control consists of individual pieces of natural stone.
5.1 The number and variety of samples from a source will
The ability of these individual pieces of stone to resist
be dependent on the geological complexity of that source and
will be left to the judgment of the individual doing the
This test method is under the jurisdiction of ASTM Committee D-18 on Soil
sampling; however, in no case shall the number of samples be
and Rock and is the direct responsibility of Subcommittee D18.17 on Rock for
less than five per lithologic (rock) unit. Each piece will be of a
Erosion Control.
size such that testing may proceed without further mechanical
Current edition approved Nov. 15, 1992. Published January 1993.
crushing; however, the pieces chosen shall be as large as the
Annual Book of ASTM Standards, Vol 04.08.
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D 5313
testing laboratory can handle but in no case shall the specimen 8. Quantitative Examination
be less than 125 mm (5 in.) on a side. In all cases, the sample
8.1 For each slab perform the following calculation:
will be representative of the various rock types found at the
percent loss 5 ~A 2 B!/A 3 100 (1)
source.
where:
6. Preparation of Test Specimens
A 5 oven dried mass of the specimen prior to testing, and
B 5 oven dried mass of the largest remaining piece of each
6.1 Saw each specimen in accordance with Practice D 5121.
slab after testing.
Each specimen will be 64 6 6 mm (2.5 6 0.25 in.) thick and
cut normal to bedding or any potential
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