ASTM C1600/C1600M-07
(Specification)Standard Specification for Rapid Hardening Hydraulic Cement
Standard Specification for Rapid Hardening Hydraulic Cement
ABSTRACT
This specification covers performance requirements for rapid hardening hydraulic cements. There are no restrictions on the compositions of the cement or its constituents. The specification classifies cements by type based on specific requirements for very early compressive strength development. The following are the four types of rapid hardening cement: (1) Type URH, ultra rapid hardening for use where high early strength is desired; (2) Type VRH, very rapid hardening for use where very high early strength is desired; (3) Type MRH, medium rapid hardening for use where mid-range hardening high early strength is desired; and (4) Type GRH, general rapid hardening for use when the higher strength properties of a Type VRH or a Type MRH cement is not required. Cement of the type specified shall conform to all of the applicable standard physical requirements for compressive strength and drying shrinkage. Cement shall be tested using the following methods: autoclave expansion; time of setting; compressive strength; drying shrinkage of mortar; heat of hydration; surface resistance; alkali silica resistivity; and expansion in water.
SCOPE
1.1 This specification is for rapid hardening hydraulic cements. This is a specification giving performance requirements. There are no restrictions on the composition of the cement or its constituents.
1.2 The specification classifies cements by type based on specific requirements for very early compressive strength development.
1.3 The values stated in either SI units or inch-pound units shall be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.4 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) are not requirements of the standard.
1.5 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. ( Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)
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Standards Content (Sample)
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Designation: C 1600/C 1600M – 07
Standard Specification for
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Rapid Hardening Hydraulic Cement
This standard is issued under the fixed designation C 1600/C 1600M; 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 151 Test Method for Autoclave Expansion of Hydraulic
Cement
1.1 This specification is for rapid hardening hydraulic ce-
C 183 Practice for Sampling and the Amount of Testing of
ments.Thisisaspecificationgivingperformancerequirements.
Hydraulic Cement
There are no restrictions on the composition of the cement or
C 186 Test Method for Heat of Hydration of Hydraulic
its constituents.
Cement
1.2 The specification classifies cements by type based on
C 191 Test Methods for Time of Setting of Hydraulic
specific requirements for very early compressive strength
Cement by Vicat Needle
development.
C 219 Terminology Relating to Hydraulic Cement
1.3 The values stated in either SI units or inch-pound units
C 227 Test Method for Potential Alkali Reactivity of
shall be regarded separately as standard. The values stated in
Cement-Aggregate Combinations (Mortar-Bar Method)
each system are not exact equivalents; therefore, each system
C 441 Test Method for Effectiveness of Pozzolans or
shall be used independently of the other. Combining values
Ground Blast-Furnace Slag in Preventing Excessive Ex-
from the two systems may result in nonconformance with the
pansion of Concrete Due to the Alkali-Silica Reaction
standard.
C 596 Test Method for Drying Shrinkage of Mortar Con-
1.4 The text of this standard refers to notes and footnotes
taining Hydraulic Cement
that provide explanatory material. These notes and footnotes
C 1012 Test Method for Length Change of Hydraulic-
(excluding those in tables and figures) are not requirements of
Cement Mortars Exposed to a Sulfate Solution
the standard.
C 1038 Test Method for Expansion of Hydraulic Cement
1.5 This standard does not purport to address all of the
Mortar Bars Stored in Water
safety concerns, if any, associated with its use. It is the
C 1437 Test Method for Flow of Hydraulic Cement Mortar
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Terminology
bility of regulatory limitations prior to use. (Warning—Fresh
3.1 Definitions:
hydraulic cementitious mixtures are caustic and may cause
2 3.1.1 For definitions of terms used in this specification, see
chemical burns to skin and tissue upon prolonged exposure. )
Terminology C 219.
2. Referenced Documents 3.2 Definitions of Terms Specific to This Standard:
3 3.3 Rapid Hardening Hydraulic Cement, n—a hydraulic or
2.1 ASTM Standards:
blended hydraulic cement which exhibits rapid strength gain
C 109/C 109M Test Method for Compressive Strength of
during the first 24 h of hydration, with or without other
Hydraulic Cement Mortars(Using 2-in. or [50-mm] Cube
constituents, processing additions, and functional additions.
Specimens)
C114 Test Methods for Chemical Analysis of Hydraulic
4. Nomenclature, Classifications and Use
Cement
4.1 Cements conforming to this specification shall be des-
ignated “Rapid Hardening Hydraulic Cement” with the high
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This test method is under the jurisdiction ofASTM Committee C01 on Cement
early strength gain characteristic indicated by type in accor-
and is the direct responsibility of Subcommittee C01.13 on Special Cements.
dance with the types described in section 4.2. When the type is
Current edition approved Aug. 1, 2007. Published September 2007.
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not specified, the requirement of Type GRH shall apply.
See the section on Safety, Manual of Cement Testing, Annual Book of ASTM
Standards, Vol 04.01.
4.2 The specification is for four types of rapid hardening
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
cement as follows:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.2.1 Type URH—Ultra Rapid Hardening For use where
Standards volume information, refer to the standard’s Document Summary page on
ultra high early strength is desired (See Table 1).
the ASTM website.
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C 1600/C 1600M – 07
TABLE 1 Standard Physical Requirements
(must be reported on manufacturer’s certification)
Cement Type
URH VRH MRH GRH
Compressive Strength (See Section 9
for procedures), min, MPa (psi)
1
1 ⁄2 h 21 [3000] 12 [1770] . . . . . .
3 h 28 [4000] 15 [2280] 10 [1500] 7 [1000]
6 h . . . . . . 14 [2000] 10 [1500]
1 day 35 [5000]
...
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