ASTM C1012-02

Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution

SCOPE
1.1 This test method covers the determination of length change of mortar bars immersed in a sulfate solution. Mortar bars made using mortar described in Test Method C 109/C 109M are cured until they attain a compressive strength of 20.0 ± 1.0 MPa (3000 150 psi), as measured using cubes made of the same mortar, before the bars are immersed.
1.2 The values stated in SI units are to be regarded as the standard. The values shown in parentheses are for information purposes only.
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.
Note 1—Warning: Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.

General Information

• Status: Historical
• Publication Date: 09-Aug-2002
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.29 - Sulfate Resistance

Relations

• Replaced By: ASTM C1012-03 - Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution
• Effective Date: 10-Jun-2003
• Referred By: ASTM C928/C928M-20a - Standard Specification for Packaged, Dry, Rapid-Hardening Cementitious Materials for Concrete Repairs
• Effective Date: 10-Aug-2002
• Referred By: ASTM C856/C856M-20 - Standard Practice for Petrographic Examination of Hardened Concrete
• Effective Date: 10-Aug-2002

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.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 1012 – 02
Standard Test Method for
Length Change of Hydraulic-Cement Mortars Exposed to a
1
Sulfate Solution
This standard is issued under the fixed designation C 1012; 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 Cement Mortars (Using Portions of Prisms Broken in
3
Flexure)
1.1 This test method covers the determination of length
C 452 Test Method for Potential Expansion of Portland-
change of mortar bars immersed in a sulfate solution. Mortar
3
Cement Mortars Exposed to Sulfate
bars made using mortar described in Test Method C 109/
C 490 Practice for Use of Apparatus for the Determination
C 109M are cured until they attain a compressive strength of
of Length Change of Hardened Cement Paste, Mortar, and
20.0 6 1.0 MPa (3000 6 150 psi), as measured using cubes
3
Concrete
made of the same mortar, before the bars are immersed.
3
C 595 Specification for Blended Hydraulic Cements
1.2 The values stated in SI units are to be regarded as the
4
C 597 Test Method for Pulse Velocity Through Concrete
standard. The values shown in parentheses are for information
C 618 Specification for Coal Fly Ash and Raw or Calcined
purposes only.
Natural Pozzolan for Use as a Mineral Admixture in
1.3 This standard does not purport to address all of the
4
Concrete
safety concerns, if any, associated with its use. It is the
C 684 Test Method for Making, Accelerated Curing, and
responsibility of the user of this standard to establish appro-
4
Testing of Concrete Compression Test Specimens
priate safety and health practices and determine the applica-
3
C 778 Specification for Standard Sand
bility of regulatory limitations prior to use.
C 917 Test Method for Evaluation of Cement Strength
3
NOTE 1—Warning: Fresh hydraulic cementitious mixtures are caustic
Uniformity From a Single Source
and may cause chemical burns to skin and tissue upon prolonged
C 989 Specification for Ground Granulated Blast-Furnace
2
exposure.
4
Slag for Use in Concrete and Mortars
5
D 1193 Specification for Reagent Water
2. Referenced Documents
E 18 Test Methods for Rockwell Hardness and Rockwell
2.1 ASTM Standards:
6
Superficial Hardness of Metallic Materials
C 109/C 109M Test Method for Compressive Strength of
Hydraulic Cement Mortars (Using 50-mm (2-in.) Cube
3. Significance and Use
3
Specimens)
4 3.1 This test method provides a means of assessing the
C 150 Specification for Portland Cement
sulfate resistance of mortars made using portland cement,
C 157 Test Method for Length Change of Hardened
blends of portland cement with pozzolans or slags, and blended
4
Hydraulic-Cement Mortar and Concrete
hydraulic cements. Method C 452 is suitable for evaluating
C 215 Test Method for Fundamental Transverse, Longitu-
portland cements but not blended cements or blends of portland
4
dinal, and Torsional Frequencies of Concrete Specimens
cement with pozzolans or slags.
C 305 Practice for Mechanical Mixing of Hydraulic Cement
3.2 The standard exposure solution used in this test method,
3
Pastes and Mortars of Plastic Consistency
unless otherwise directed, contains 352 moles of Na SO per
2 4
C 348 Test Method for Flexural Strength of Hydraulic
3
m (50 g/L). Other sulfate concentrations or other sulfates such
3
Cement Mortars
as MgSO may be used to simulate the environmental exposure
4
C 349 Test Method for Compressive Strength of Hydraulic
of interest. Further discussion of these and other technical
issues is given in the Appendix.
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement
4. Apparatus
and is the direct responsibility of Subcommittee C01.29 on Sulfate Resistance.
4.1 Mixer, conforming to the requirements of Practice
Current edition approved Aug. 10, 2002. Published September 2002. Originally
published as C 1012 – 1984. Last previous edition C 1012 – 95a.
C 305.
2
See Manual of Cement Testing, Section on Safety, Annual Book of ASTM
Standards, Vol 04.01.
3 5
Annual Book of ASTM Standards, Vol 04.01. Annual Book of ASTM Standards, Vol 11.01.
4 6
Annual Book of ASTM Standards, Vol 04.02. Annual Book of ASTM Standards, Vol 03.01.
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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.
C1012–02
4.2 Cube Molds, conforming to the requirements of Test 6. Preparing Mortars
Method C 109.
6.1 Make mortars as described in Test Method C 109/
...