ASTM C1073-97a

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1073 – 97a
Standard Test Method for
Hydraulic Activity of Ground Slag by Reaction with Alkali
This standard is issued under the fixed designation C 1073; 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 3.1.1 Definitions are given in Terminology C 125 and
C 219.
1.1 This test method covers the rapid determination of
3.2 Description of Term Specific to This Standard:
hydraulic activity of ground-granulated iron blast-furnace slag.
3.2.1 slag, n—granulated blast-furnace slag as defined in
This test method measures the accelerated strength develop-
Terminology C 125 and ground to cement fineness.
ment of the slag by using sodium hydroxide solution as mixing
water and curing at elevated temperature.
4. Significance and Use
1.2 The values stated in SI units are to be regarded as the
4.1 This test method can be used as a quality-control test for
standard.
slag production from a single source after adequate correlation
1.3 This standard does not purport to address all of the
with tests stipulated in Specification C 989.
safety concerns, if any, associated with its use. It is the
4.2 This test method may be used as an evaluation technique
responsibility of the user of this standard to establish appro-
for slag, when an appropriate correlation with various fine-
priate safety and health practices and determine the applica-
nesses of slags from a specific source ground in a specific
bility of regulatory limitations prior to use. A specific precau-
laboratory mill has been previously developed.
tionary statement is given in Section 6.
4.3 The hydraulic activity as measured by this test method
1.4 The text of this standard references notes and footnotes
on ground-slag samples can provide guidance to a manufac-
which provide explanatory information. These notes and foot-
turer as to fineness level required to maintain a certain level of
notes (excluding those in tables) shall not be considered as
hydraulic activity.
requirements of this standard.
4.4 While this test method is intended primarily as a quality
2. Referenced Documents control test, some studies have shown that the test method is
capable of evaluating the hydraulic activity of slags from
2.1 ASTM Standards:
different sources.
C 109/C 109M Test Method for Compressive Strength of
Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube
5. Apparatus
Specimens)
5.1 Three-Gang Molds for 2-in. or 50-mm Cubes and
C 125 Terminology Relating to Concrete and Concrete
Compression Test Machine as specified in Test Method C 109
Aggregates
2 (Note 1).
C 219 Terminology Relating to Hydraulic Cement
C 305 Practice for Mechanical Mixing of Hydraulic Cement
NOTE 1—Silicone grease is recommended for protection of mold
Pastes and Mortars of Plastic Consistency surfaces from the caustic solution in this test.
C 670 Practice for Preparing Precision and Bias Statements
5.2 Mixer, as specified in Method C 305.
for Test Methods for Construction Materials
5.3 Curing Chamber, capable of maintaining a temperature
C 778 Specification for Standard Sand
of air or water bath of 55 6 2°C.
C 989 Specification for Ground Blast-Furnace Slag for Use
5.4 Containers, capable of holding one three-cube mold in
in Concrete and Mortars
an essentially vapor-tight condition. If polyethylene or other
plastic bags are used, they shall have a closure of the zip type.
3. Terminology
If rigid containers are used, they shall have tight sealing covers
3.1 Definitions:
(Note 2). The acceptability of containers shall be determined
by measuring the water loss after curing in air or the gain after
1 curing in water bath. Water loss shall be less than 15 mL in air
This test method is under the jurisdiction of ASTM Committee C09 on
curing or gain less than 5 mL in water-bath curing.
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
C09.27on Ground Slag .
NOTE 2—Plastic boxes designed for household storage of celery with a
Current edition approved Nov. 10, 1997. Published October 1998. Originally
bottom grid have given good service.
published as E 1085 – 85, this standard was redesignated C 1073 in September
1986. Last previous edition C 1073 – 91.
Annual Book of ASTM Standards, Vol 04.01.
Annual Book of ASTM Standards, Vol 04.02.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1073
6. Materials 8. Calculation
6.1 Graded Standard Sand—The sand used for making test
8.1 Calculate the compressive strength of the specimens in
specimens shall be natural silica sand conforming to the
accordance with Test Method C 109.
requirements for graded standard sand in Spe
...