ASTM C265-03

Standard Test Method for Water-Extractable Sulfate in Hydrated Hydraulic Cement Mortar

SCOPE
1.1 This test method covers the measurement of water-extractable SO3 in hardened hydraulic cement mortar. This measurement is assumed to represent unreacted, available sulfate remaining in the mortar.
1.1.1 Warning: Fresh hydraulic cementious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 Values in SI units were obtained by measurement in SI units or by appropriate conversion using the Rules for Conversion and Rounding given in IEEE/ASTM SI-10 Standard of measurements made in other units.
1.4 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.

General Information

• Status: Historical
• Publication Date: 09-Jan-2003
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.28 - Sulfate Content

Relations

• Replaces: ASTM C265-01 - Standard Test Method for Water-Extractable Sulfate in Hydrated Hydraulic Cement Mortar
• Effective Date: 10-Jan-2003
• Replaced By: ASTM C265-03a - Standard Test Method for Water-Extractable Sulfate in Hydrated Hydraulic Cement Mortar
• Effective Date: 10-Jun-2003

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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.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 265 – 03
Standard Test Method for
Water-Extractable Sulfate in Hydrated Hydraulic Cement
1
Mortar
This standard is issued under the fixed designation C 265; 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.
3
1. Scope D 1193 Specification for Reagent Water
E 11 Specification for Wire-Cloth and Sieves for Testing
1.1 This test method covers the measurement of water-
4
Purposes
extractable SO in hardened hydraulic cement mortar. This
3
IEEE/ASTM SI-10 Standard for Use of the International
measurement is assumed to represent unreacted, available
4
System of Units (SI): The Modern Metric System
sulfate remaining in the mortar.
1.1.1 Warning: Fresh hydraulic cementious mixtures are
3. Terminology
caustic and may cause chemical burns to skin and tissue upon
3.1 Definitions—The terms used in this test method are
prolonged exposure.
defined in accordance with Terminology C 219.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
4. Significance and Use
only.
4.1 This test method is intended for use by manufacturers of
1.3 Values in SI units were obtained by measurement in SI
hydraulic cement and those interested in research on a suitable
units or by appropriate conversion using the Rules for Conver-
method for determining whether calcium sulfate has or has not
sion and Rounding given in IEEE/ASTM SI-10 Standard of
been added in an amount considered to be optimum. Also, for
measurements made in other units.
any such cement having an above optimum SO content, this
3
1.4 This standard does not purport to address all of the
test method establishes whether that excess exceeds the limit
safety concerns, if any, associated with its use. It is the
allowed in Specification C 595. This test method also can
responsibility of the user of this standard to establish appro-
provide useful information on other hydraulic cements, such as
priate safety and health practices and determine the applica-
those specified in Specifications C 150 and C 1157.
bility of regulatory limitations prior to use.
5. Apparatus
2. Referenced Documents
5.1 Sieve—A 2.36-mm (No.8) sieve conforming to Specifi-
2.1 ASTM Standards:
cation E 11.
C 109/C 109M Test Method for Compressive Strength of
5.2 Mixer, Bowl, and Paddle—An electrically driven me-
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
2 chanical mixer equipped with a paddle and bowl, as specified
Specimens)
in the Apparatus section of Practice C 305.
C 114 Test Methods for Chemical Analysis of Hydraulic
2 5.3 Polyethylene Containers—Watertight polyethylene bags
Cement
of 1-L (1-qt) capacity or approximately 360-mm (14-in.) sheet
2
C 150 Specification for Portland Cement
2 material, made using polyethylene at least 0.10-mm (0.004-in.)
C 219 Terminology Relating to Hydraulic Cement
in thickness.
C 305 Practice for Mechanical Mixing of Hydraulic Cement
1
2 5.4 Mortar and Pestle—A mortar of 1.5-L (1 ⁄2-qt) size, and
Pastes and Mortars of Plastic Consistency
a pestle, both of which shall be iron or porcelain.
2
C 595 Specification for Blended Hydraulic Cements
2 5.5 Water Bath—A water bath thermostatically controlled at
C 778 Specification for Standard Sand
23.0 6 0.15°C .
2
C 1157 Performance Specification for Hydraulic Cement
6. Reagents and Materials
6.1 Mixing Water—Reagent water conforming to the nu-
merical limits of Type II of Specification D 1193.
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement
and is the direct responsibility of Subcommittee C01.28 on Sulfate Content.
Current edition approved Jan. 10, 2003. Published February 2003. Originally
3
approved in 1951. Last previous edition approved in 2001 as C 265-01. Annual Book of ASTM Standards, Vol 11.01.
2 4
Annual Book of ASTM Standards, Vol 04.01. Annual Book of ASTM Standards, Vol 14.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
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.
C265–03
6.2 Graded Sand—Sand conforming to the requirements for Complete filtration within a period of 2 min. Filter again,
graded sand in Specification C 778. whether the filtrate is turbid or not, using a new dry filter paper
without suction.
7. Temperature and Relative Humidity
7.1 Maintain the temperature of the molding room at 23.0 6 11. Analysis of the Extract
2.0°C . Adjust the temperature of the
...