ASTM C1240-03a

Standard Specification for Use of Silica Fume for Use as a Mineral Admixture in Hydraulic-Cement Concrete, Mortar, and Grout

SCOPE
1.1 This specification covers silica fume for use in concrete and other systems containing hydraulic cement.
1.2 In the cases of slurried or densified silica fume, perform the tests on the raw silica fume from which these products have been made.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 The following safety hazards caveat pertains only to the test methods portions, Sections 10-19, of this specification:  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. Read the material safety data sheets for materials used.
1.5 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes (excluding those in tables) shall not be considered as requirements of this standard.

General Information

• Status: Historical
• Publication Date: 09-Aug-2003
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.24 - Supplementary Cementitious Materials

Relations

• Replaces: ASTM C1240-03 - Standard Specification for Use of Silica Fume for Use as a Mineral Admixture in Hydraulic-Cement Concrete, Mortar, and Grout
• Effective Date: 10-Aug-2003
• Replaced By: ASTM C1240-04 - Standard Specification for Silica Fume Used in Cementitious Mixtures
• Effective Date: 01-Jun-2004
• Referred By: ASTM C1293-20a - Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction
• Effective Date: 10-Aug-2003
• Referred By: ASTM C55-22 - Standard Specification for Concrete Building Brick
• Effective Date: 10-Aug-2003
• Referred By: ASTM C1877-19 - Standard Specification for Adhered Concrete Masonry Units
• Effective Date: 10-Aug-2003
• Referred By: ASTM C1897-20 - Standard Test Methods for Measuring the Reactivity of Supplementary Cementitious Materials by Isothermal Calorimetry and Bound Water Measurements
• Effective Date: 10-Aug-2003
• Referred By: ASTM C441/C441M-17 - Standard Test Method for Effectiveness of Pozzolans or Ground Blast-Furnace Slag in Preventing Excessive Expansion of Concrete Due to the Alkali-Silica Reaction
• Effective Date: 10-Aug-2003
• Referred By: ASTM C387/C387M-23 - Standard Specification for Packaged, Dry, Combined Materials for Concrete and High Strength Mortar
• Effective Date: 10-Aug-2003
• Referred By: ASTM C1790-21 - Standard Specification for Fly Ash Facing Brick
• Effective Date: 10-Aug-2003
• Referred By: ASTM C1778-22 - Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete
• Effective Date: 10-Aug-2003
• Referred By: ASTM C936/C936M-23 - Standard Specification for Solid Concrete Interlocking Paving Units
• Effective Date: 10-Aug-2003
• Referred By: ASTM C129-22 - Standard Specification for Nonloadbearing Concrete Masonry Units
• Effective Date: 10-Aug-2003
• Referred By: ASTM C1804-20 - Standard Specification for Spun Cast Prestressed Concrete Bases for Tapered Steel Lighting Poles
• Effective Date: 10-Aug-2003
• Referred By: ASTM E2129-18 - Standard Practice for Data Collection for Sustainability Assessment of Building Products
• Effective Date: 10-Aug-2003
• Referred By: ASTM C1634-23 - Standard Specification for Concrete Facing Brick and Other Concrete Masonry Facing Units
• Effective Date: 10-Aug-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 1240 – 03a
Standard Specification for
1
Silica Fume Used in Cementitious Mixtures
This standard is issued under the fixed designation C 1240; 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* C 185 Test Method for Air Content of Hydraulic Cement
2
Mortar
1.1 This specification covers silica fume for use in concrete
2
C 219 Terminology Relating to Hydraulic Cement
and other systems containing hydraulic cement.
C 311 Test Methods for Sampling and Testing Fly Ash or
1.2 In the cases of slurried or densified silica fume, perform
Natural Pozzolans for Use as a Mineral Admixture in
the tests on the raw silica fume from which these products have
3
Portland-Cement Concrete
been made.
C 430 Test Method for Fineness of Hydraulic Cement by
1.3 The values stated in SI units are to be regarded as the
2
the 45-μm (No. 325) Sieve
standard. The values given in parentheses are for information
C 441 Test Method for Effectiveness of Pozzolans or
only.
Ground Blast-Furnace Slag in Preventing Excessive Ex-
1.4 The following safety hazards caveat pertains only to the
3
pansion of Concrete Due to the Alkali-Silica Reaction
test methods portions, Sections 10-19, of this specification:
C 670 Practice for Preparing Precision and Bias Statements
This standard does not purport to address all of the safety
3
for Test Methods for Construction Materials
concerns, if any, associated with its use. It is the responsibility
C 1005 Specification for Reference Masses and Devices for
of the user of this standard to establish appropriate safety and
Determining Mass and Volume for Use in the Physical
health practices and determine the applicability of regulatory
2
Testing of Hydraulic Cements
limitations prior to use. Read the material safety data sheets for
C 1012 Test Method for Length Change of Hydraulic-
materials used.
2
Cement Mortars Exposed to a Sulfate Solution
1.5 The text of this standard references notes and footnotes
C 1069 Test Method for Specific Surface Area of Alumina
that provide explanatory information. These notes and foot-
4
or Quartz by Nitrogen Adsorption
notes (excluding those in tables) shall not be considered as
2
C 1157 Performance Specification for Hydraulic Cement
requirements of this standard.
2
C 1437 Test Method for Flow of Hydraulic Cement Mortar
2. Referenced Documents
3. Terminology
2.1 ASTM Standards:
3.1 Definitions:
C 109/C 109M Test Method for Compressive Strength of
3.1.1 silica fume—very fine pozzolanic material, composed
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
2
mostly of amorphous silica produced by electric arc furnaces as
Specimens)
a byproduct of the production of elemental silicon or ferro-
C 114 Test Methods for Chemical Analysis of Hydraulic
2
silicon alloys (also known as condensed silica fume and
Cement
microsilica).
C 125 Terminology Relating to Concrete and Concrete
3
3.1.2 Other terms in this specification are defined in Termi-
Aggregates
nologies C 125 and C 219.
C 157/C 157M Test Method for Length Change of Hard-
3
ened Hydraulic-Cement, Mortar, and Concrete
4. Ordering Information
C 183 Practice for Sampling and the Amount of Testing of
2 4.1 The purchaser shall specify any optional chemical or
Hydraulic Cement
physical requirements.
1 5. Chemical Composition
This specification is under the jurisdiction of ASTM Committee C09 on
Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee
5.1 Silica fume shall conform to the requirements for
C09.24 on Supplementary and Cementitious Materials.
chemical composition prescribed in Table 1.
Current edition approved Aug. 10, 2003. Published October 2003. Originally
approved in 1993. Last previous edition approved in 2003 as C 1240-03.
2
Annual Book of ASTM Standards, Vol 04.01.
3 4
Annual Book of ASTM Standards, Vol 04.02. Annual Book of ASTM Standards, Vol 15.02.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C 1240 – 03a
A
TABLE 1 Chemical Requirements TABLE 3 Optional Physical Requirements
SiO , min, % 85.0 Uniformity requirements:
2
Moisture content, max, % 3.0 When air-entraining concrete is specified, the quantity of air- 20
Loss on ignition, max, % 6.0 entraining agent required to produce air content of 18.0 vol %
of mortar shall not vary from the average established by the ten
preceding tests or by all preceding tests if less than ten, by
more than, %
B
Reactivity with cement alkalies:
6. Phys
...