ASTM C1012-03

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-Jun-2003
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.29 - Sulfate Resistance

Relations

• Replaces: ASTM C1012-02 - Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution
• Effective Date: 10-Jun-2003
• Replaced By: ASTM C1012-04 - Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution
• Effective Date: 01-Jan-2004
• Referred By: ASTM C928/C928M-20a - Standard Specification for Packaged, Dry, Rapid-Hardening Cementitious Materials for Concrete Repairs
• Effective Date: 10-Jun-2003
• Referred By: ASTM C856/C856M-20 - Standard Practice for Petrographic Examination of Hardened Concrete
• Effective Date: 10-Jun-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 1012 – 03
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.
2
1. Scope Cement Mortars Exposed to Sulfate
C 490 Practice for Use of Apparatus for the Determination
1.1 This test method covers the determination of length
of Length Change of Hardened Cement Paste, Mortar, and
change of mortar bars immersed in a sulfate solution. Mortar
2
Concrete
bars made using mortar described in Test Method C 109/
C 511 Standard Specification for Moist Cabinets, Moist
C 109M are cured until they attain a compressive strength of
Rooms, and Water Storage Tanks Used in the Testing of
20.0 6 1.0 MPa (3000 6 150 psi), as measured using cubes
2
Hydraulic Cements and Concretes
made of the same mortar, before the bars are immersed.
2
C 595 Specification for Blended Hydraulic Cements
1.2 The values stated in SI units are to be regarded as the
3
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
3
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-
3
Testing of Concrete Compression Test Specimens
priate safety and health practices and determine the applica-
2
C 778 Specification for Standard Sand
bility of regulatory limitations prior to use.
C 917 Test Method for Evaluation of Cement Strength
2
2. Referenced Documents
Uniformity From a Single Source
C 989 Specification for Ground Granulated Blast-Furnace
2.1 ASTM Standards:
3
Slag for Use in Concrete and Mortars
C 109/C 109M Test Method for Compressive Strength of
4
D 1193 Specification for Reagent Water
Hydraulic Cement Mortars (Using 2-in. or [50mm] Cube
2
E 18 Test Methods for Rockwell Hardness and Rockwell
Specimens)
5
Superficial Hardness of Metallic Materials
C 114 Test Method for Chemical Analysis of Hydraulic
2
Cement
3. Significance and Use
3
C 150 Specification for Portland Cement
3.1 This test method provides a means of assessing the
C 157/C 157M Test Method for Length Change of Hard-
3 sulfate resistance of mortars made using portland cement,
ened Hydraulic-Cement Mortar and Concrete
blends of portland cement with pozzolans or slags, and blended
C 215 Test Method for Fundamental Transverse, Longitu-
3 hydraulic cements. Method C 452 is suitable for evaluating
dinal, and Torsional Frequencies of Concrete Specimens
portland cements but not blended cements or blends of portland
C 305 Practice for Mechanical Mixing of Hydraulic Cement
2 cement with pozzolans or slags.
Pastes and Mortars of Plastic Consistency
3.2 The standard exposure solution used in this test method,
C 348 Test Method for Flexural Strength of Hydraulic
2 unless otherwise directed, contains 352 moles of Na SO per
2 4
Cement Mortars
3
m (50 g/L). Other sulfate concentrations or other sulfates such
C 349 Test Method for Compressive Strength of Hydraulic
as MgSO may be used to simulate the environmental exposure
4
Cement Mortars (Using Portions of Prisms Broken in
2
of interest. Further discussion of these and other technical
Flexure)
issues is given in the Appendix.
C 452 Test Method for Potential Expansion of Portland-
4. Apparatus
4.1 Mixer, conforming to the requirements of Practice
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement
C 305.
and is the direct responsibility of Subcommittee C01.29 on Sulfate Resistance.
Current edition approved June 10, 2003. Published September 2003. Originally
approved in 1984. Last previous edition approved in 2002 as C 1012 – 02.
2 4
Annual Book of ASTM Standards, Vol 04.01. Annual Book of ASTM Standards, Vol 11.01.
3 5
Annual Book of ASTM Standards, Vol 04.02. Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C1012–03
4.2 Cube Molds, conforming to the requirements of Test 5.5.2 Stainless Steel Gage Studs, as specified in Specifica-
Method C 109/C 109M. tion C 490.
4.3 Bar Molds, conforming to the requirements of Specifi-
6. Hazards
cation C 490.
4.4 Comparator, conforming to the requirements of Speci- 6.1 Warning—Fresh hydraulic cementitious
...