ASTM C109/C109M-99

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: C 109/C 109M – 99
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
Compressive Strength of Hydraulic Cement Mortars
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(Using 2-in. or [50-mm] Cube Specimens)
This standard is issued under the fixed designation C 109/C 109M; 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.
This standard has been approved for use by agencies of the Department of Defense.
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1. Scope for Test Methods for Construction Materials
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C 778 Specification for Standard Sand
1.1 This test method covers determination of the compres-
C 1005 Specification for Weights and Weighing Devices for
sive strength of hydraulic cement mortars, using 2-in. or
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Use in Physical Testing of Hydraulic Cements
[50-mm] cube specimens.
IEEE/ASTM SI 10 Standard for Use of the International
NOTE 1—Test Method C 349 provides an alternative procedure for this 4
System of Units (SI): The Modern Metric System
determination (not to be used for acceptance tests).
3. Summary of Test Method
1.2 This test method covers the application of the test using
either inch-pound or SI units. The values stated in either system
3.1 The mortar used consists of 1 part cement and 2.75 parts
shall be regarded separately as standard. Within the text, the SI
of sand proportioned by mass. Portland or air-entraining
units are shown in brackets. The values stated in each system
portland cements are mixed at specified water/cement ratios.
are not exact equivalents; therefore, each system shall be used
Water content for other cements is that sufficient to obtain a
independently of the other. Combining values from the two
flow of 110 6 5 in 25 drops of the flow table. Two-inch or
systems may result in nonconformance with the specification.
[50-mm] test cubes are compacted by tamping in two layers.
1.3 Values in SI units shall be obtained by measurement in
The cubes are cured one day in the molds and stripped and
SI units or by appropriate conversion, using the Rules for
immersed in lime water until tested.
Conversion and Rounding given in Standard IEEE/ASTM SI
4. Significance and Use
10, of measurements made in other units.
1.4 This standard does not purport to address all of the
4.1 This test method provides a means of determining the
safety concerns, if any, associated with its use. It is the compressive strength of hydraulic cement and other mortars
responsibility of the user of this standard to establish appro-
and results may be used to determine compliance with speci-
priate safety and health practices and determine the applica- fications. Further, this test method is referenced by numerous
bility of regulatory limitations prior to use.
other specifications and test methods. Caution must be exer-
cised in using the results of this test method to predict the
2. Referenced Documents
strength of concretes.
2.1 ASTM Standards:
5. Apparatus
C 230 Specification for Flow Table for Use in Tests of
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Hydraulic Cement 5.1 Weights and Weighing Devices, shall conform to the
C 305 Practice for Mechanical Mixing of Hydraulic Cement
requirements of Specification C 1005. The weighing device
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Pastes and Mortars of Plastic Consistency shall be evaluated for precision and bias at a total load of 2000
C 349 Test Method for Compressive Strength of Hydraulic
g.
Cement Mortars (Using Portions of Prisms Broken in 5.2 Glass Graduates, of suitable capacities (preferably large
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Flexure)
enough to measure the mixing water in a single operation) to
C 511 Specification for Moist Cabinets, Moist Rooms and deliver the indicated volume at 20°C. The permissible variation
Water Storage Tanks Used in the Testing of Hydraulic
shall be 62 mL. These graduates shall be subdivided to at least
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Cements and Concretes 5 mL, except that the graduation lines may be omitted for the
C 670 Practice for Preparing Precision and Bias Statements
lowest 10 mL for a 250-mL graduate and for the lowest 25 mL
of a 500-mL graduate. The main graduation lines shall be
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This test method is under the jurisdiction of ASTM Committee C-1 on Cement circles and shall be numbered. The least graduations shall
and is the direct responsibility of Subcommittee C01.27 on Strength.
extend at least one seventh of the way around, and intermediate
Current edition approved Jan. 10, 1999. Published May 1999. Originally
published as C 109 – 34 T. Last previous edition C 109 – 98.
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Annual Book of ASTM Standards, Vol 04.01.
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Annual Book of ASTM Standards, Vol 04.02.
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Annual Book of ASTM Standards, Vol 14.02.
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