ASTM D1633-17
(Test Method)Standard Test Methods for Compressive Strength of Molded Soil-Cement Cylinders
Standard Test Methods for Compressive Strength of Molded Soil-Cement Cylinders
SIGNIFICANCE AND USE
4.1 Method A makes use of the same compaction equipment and molds commonly available in soil laboratories and used for other soil-cement tests. It is considered that Method A gives a relative measure of strength rather than a rigorous determination of compressive strength. Because of the lesser height to diameter ratio (1.15) of the cylinders, the compressive strength determined by Method A will normally be greater than that for Method B.
4.2 Method B, because of the greater height to diameter ratio (2.00), gives a better measure of compressive strength from a technical viewpoint since it reduces complex stress conditions that may occur during the shearing of Method A specimens.
4.3 In practice, Method A has been more commonly used than Method B. As a result, it has been customary to evaluate or specify compressive strength values as determined by Method A. A factor for converting compressive strength values based on height to diameter ratio is given in Section 8.3
Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself ensure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
SCOPE
1.1 This test method covers the determination of the compressive strength of soil-cement using molded cylinders as test specimens.
1.2 Two alternative procedures are provided as follows:
1.2.1 Method A—This procedure uses a test specimen prepared in a mold complying with Test Methods D698 (4.0 in. (101.6 mm) in diameter and 4.6 in. (116.8 mm) in height), sometimes referred to as a proctor mold, resulting in a height over diameter ratio of 1.15. This test method may be used only on materials with 30 % or less retained on the 19.0-mm (3/4-in.) sieve. See Note 2.
1.2.2 Method B—This procedure uses a test specimen with a height over diameter ratio of 2.0 prepared in a cylindrical mold in accordance with Practice D1632 (2.8 in. (71.1 mm) in diameter and 9.0 in. (229 mm) in height). This test method is applicable to those materials that pass the 4.75-mm (No. 4) sieve.
1.3 Units—The values stated in inch-pound units are to be regarded as standard, except as noted in below. The values given in parentheses are mathematical conversions to SI units, and are provided for information only and are not considered standard. Sieve sizes are identified by the standard designations in Specification E11. The alternative sieve size designation given in parentheses is for information only and does not represent a different standard sieve size.
1.3.1 The gravitational system of inch-pound units is used when dealing with inch-pound units. In this system, the pound (lbf) represents a unit of force (weight), while the unit for mass is slugs.
1.3.2 The slug unit of mass is almost never used in commercial practice, that is, density, balances, etc. Therefore, the standard unit for mass in this standard is either kilogram (kg) or gram (g), or both. Also, the equivalent inch-pound unit (slug) is not given/presented in parentheses.
1.3.3 It is common practice in the engineering/construction profession to concurrently use pounds to represent both a unit of mass (lbm) and of force (lbf). This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. As stated, this standard includes the gravitational system of inch-pound units and does not use/present the slug unit for mass. However, the use of balances or scales, recordin...
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1633 − 17
Standard Test Methods for
1
Compressive Strength of Molded Soil-Cement Cylinders
This standard is issued under the fixed designation D1633; 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* 1.3.3 It is common practice in the engineering/construction
profession to concurrently use pounds to represent both a unit
1.1 This test method covers the determination of the com-
of mass (lbm) and of force (lbf). This implicitly combines two
pressive strength of soil-cement using molded cylinders as test
separate systems of units; that is, the absolute system and the
specimens.
gravitational system. It is scientifically undesirable to combine
1.2 Two alternative procedures are provided as follows:
the use of two separate sets of inch-pound units within a single
1.2.1 Method A—This procedure uses a test specimen pre-
standard. As stated, this standard includes the gravitational
pared in a mold complying with Test Methods D698 (4.0 in.
system of inch-pound units and does not use/present the slug
(101.6 mm) in diameter and 4.6 in. (116.8 mm) in height),
unitformass.However,theuseofbalancesorscales,recording
sometimes referred to as a proctor mold, resulting in a height
3
pounds of mass (lbm) or recording density in lbm/ft shall not
over diameter ratio of 1.15. This test method may be used only
be regarded as nonconformance with this standard.
3
on materials with 30 % or less retained on the 19.0-mm ( ⁄4-in.)
sieve. See Note 2.
1.4 All observed and calculated values shall conform to the
1.2.2 Method B—This procedure uses a test specimen with
guidelines for significant digits and rounding established in
a height over diameter ratio of 2.0 prepared in a cylindrical
Practice D6026 unless superseded by this test method.
mold in accordance with Practice D1632 (2.8 in. (71.1 mm) in
1.4.1 Theproceduresusedtospecifyhowdataarecollected/
diameter and 9.0 in. (229 mm) in height). This test method is
recorded and calculated in the standard are regarded as the
applicable to those materials that pass the 4.75-mm (No. 4)
industry standard. In addition, they are representative of the
sieve.
significant digits that generally should be retained. The proce-
1.3 Units—The values stated in inch-pound units are to be
dures used do not consider material variation, purpose for
regarded as standard, except as noted in below. The values
obtaining the data, special purpose studies, or any consider-
given in parentheses are mathematical conversions to SI units,
ations for the user’s objectives; and it is common practice to
and are provided for information only and are not considered
increase or reduce significant digits of reported data to be
standard.Sievesizesareidentifiedbythestandarddesignations
commensuratewiththeseconsiderations.Itisbeyondthescope
in Specification E11. The alternative sieve size designation
of these test methods to consider significant digits used in
given in parentheses is for information only and does not
analysis methods for engineering data.
represent a different standard sieve size.
1.5 This standard does not purport to address all of the
1.3.1 The gravitational system of inch-pound units is used
safety concerns, if any, associated with its use. It is the
when dealing with inch-pound units. In this system, the pound
responsibility of the user of this standard to establish appro-
(lbf) represents a unit of force (weight), while the unit for mass
priate safety, health, and environmental practices and deter-
is slugs.
mine the applicability of regulatory limitations prior to use.
1.3.2 The slug unit of mass is almost never used in
commercial practice, that is, density, balances, etc. Therefore,
1.6 This international standard was developed in accor-
the standard unit for mass in this standard is either kilogram
dance with internationally recognized principles on standard-
(kg) or gram (g), or both.Also, the equivalent inch-pound unit
ization established in the Decision on Principles for the
(slug) is not given/presented in parentheses.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1
This test method is under the jurisdiction ofASTM Committee D18 on Soil and
Rock and is the direct responsibility of Subcommittee D18.15 on Stabilization With
Admixtures.
Current edition approved Nov. 1, 2017. Published November 2017. Originally
approved
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.