ASTM C1073-97a(2003)
(Test Method)Standard Test Method for Hydraulic Activity of Ground Slag by Reaction with Alkali
Standard Test Method for Hydraulic Activity of Ground Slag by Reaction with Alkali
SIGNIFICANCE AND USE
This test method can be used as a quality-control test for slag production from a single source after adequate correlation with tests stipulated in Specification C 989.
This test method may be used as an evaluation technique for slag, when an appropriate correlation with various finenesses of slags from a specific source ground in a specific laboratory mill has been previously developed.
The hydraulic activity as measured by this test method on ground-slag samples can provide guidance to a manufacturer as to fineness level required to maintain a certain level of hydraulic activity.
While this test method is intended primarily as a quality control test, some studies have shown that the test method is capable of evaluating the hydraulic activity of slags from different sources.
SCOPE
1.1 This test method covers the rapid determination of hydraulic activity of ground-granulated iron blast-furnace slag. This test method measures the accelerated strength development of the slag by using sodium hydroxide solution as mixing water and curing at elevated temperature.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 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. A specific warning statement is given in Section 6.
1.4 The text of this standard references notes and footnotes (excluding those in tables) shall not be considered as requirements of this standard.
General Information
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Standards Content (Sample)
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Designation:C1073–97a (Reapproved 2003)
Standard Test Method for
Hydraulic Activity of Ground Slag by Reaction with Alkali
This standard is issued under the fixed designation C1073; 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 C989 Specification for Slag Cement for Use in Concrete
and Mortars
1.1 This test method covers the rapid determination of
hydraulic activity of ground-granulated iron blast-furnace slag.
3. Terminology
This test method measures the accelerated strength develop-
3.1 Definitions:
ment of the slag by using sodium hydroxide solution as mixing
3.1.1 Definitions are given in Terminology C125 and C219.
water and curing at elevated temperature.
3.2 Description of Term Specific to This Standard:
1.2 The values stated in SI units are to be regarded as the
3.2.1 slag, n—granulated blast-furnace slag as defined in
standard.
Terminology C125 and ground to cement fineness.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 This test method can be used as a quality-control test for
priate safety and health practices and determine the applica-
slag production from a single source after adequate correlation
bility of regulatory limitations prior to use. Aspecific warning
with tests stipulated in Specification C989.
statement is given in Section 6.
4.2 Thistestmethodmaybeusedasanevaluationtechnique
1.4 The text of this standard references notes and footnotes
for slag, when an appropriate correlation with various fine-
which provide explanatory information. These notes and foot-
nesses of slags from a specific source ground in a specific
notes (excluding those in tables) shall not be considered as
laboratory mill has been previously developed.
requirements of this standard.
4.3 The hydraulic activity as measured by this test method
on ground-slag samples can provide guidance to a manufac-
2. Referenced Documents
turer as to fineness level required to maintain a certain level of
2.1 ASTM Standards:
hydraulic activity.
C109/C109M Test Method for Compressive Strength of
4.4 While this test method is intended primarily as a quality
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
control test, some studies have shown that the test method is
Specimens)
capable of evaluating the hydraulic activity of slags from
C125 Terminology Relating to Concrete and Concrete Ag-
different sources.
gregates
C219 Terminology Relating to Hydraulic Cement
5. Apparatus
C305 Practice for Mechanical Mixing of Hydraulic Cement
5.1 Three-Gang Molds for 2-in. or 50-mm Cubes and
Pastes and Mortars of Plastic Consistency
Compression Test Machine, as specified in Test Method C109/
C670 Practice for Preparing Precision and Bias Statements
C109M (Note 1).
for Test Methods for Construction Materials
C778 Specification for Standard Sand
NOTE 1—Silicone grease is recommended for protection of mold
surfaces from the caustic solution in this test.
5.2 Mixer, as specified in Method C305.
This test method is under the jurisdiction of ASTM Committee C09 on
5.3 Curing Chamber, capable of maintaining a temperature
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
of air or water bath of 55 6 2°C.
C09.27 on Ground Slag .
5.4 Containers, capable of holding one three-cube mold in
Current edition approved August 10, 2003. Published September 2003. Origi-
an essentially vapor-tight condition. If polyethylene or other
nally approved in 1985. Last previous edition approved in 1997 as C1073 – 97a.
DOI: 10.1520/C1073-97AR03.
plastic bags are used, they shall have a closure of the zip type.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
If rigid containers are used, they shall have tight sealing covers
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
(Note 2). The acceptability of containers shall be determined
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. by measuring the water loss after curing in air or the gain after
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C1073–97a (2003)
curing in water bath. Water loss shall be less than 15 mL in air 7.4 Determination of Compressive Strength—Testthespeci-
curing or gain less than 5 mL in water-bath curing. mens for compressive strength at 24 6 ⁄2 h in accordance with
Test Method C109/C109M.
NOTE 2—Plastic boxes designed for household storage of celery with a
bottom grid have given good service.
8. Calculation
6. Materials
8.1 Calculate the compressive strength of the specimens in
accordance with Test Method C109/C109M.
6.1 Graded Standard Sand—The sand used for making test
specimens shall be natural silica sand c
...
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