ASTM C359-05

Standard Test Method for Early Stiffening of Hydraulic Cement (Mortar Method)

SCOPE
1.1 This test method covers the determination of early stiffening in hydraulic-cement mortar.
1.2 The values stated in SI units are the standard. The values in parentheses are for information 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure. The use of gloves, protective clothing, and eye protection is recommended. Wash contact area with copious amounts of water after contact. Wash eyes for a minimum of 15 min. Avoid exposure of the body to clothing saturated with the liquid phase of the unhardened material. Remove contaminated clothing immediately after exposure.)²
1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

General Information

• Status: Historical
• Publication Date: 30-Jun-2005
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.30 - Time of Set

Relations

• Replaces: ASTM C359-04 - Standard Test Method for Early Stiffening of Hydraulic Cement (Mortar Method)
• Effective Date: 01-Jul-2005
• Replaced By: ASTM C359-06 - Standard Test Method for Early Stiffening of Hydraulic Cement (Mortar Method)
• Effective Date: 01-Jul-2006
• Referred By: ASTM C1810/C1810M-22 - Standard Guide for Comparing Performance of Concrete-Making Materials Using Mortar Mixtures
• Effective Date: 01-Jul-2005
• Referred By: ASTM C1157/C1157M-23 - Standard Performance Specification for Hydraulic Cement
• Effective Date: 01-Jul-2005
• Referred By: ASTM C887-20 - Standard Specification for Packaged, Dry, Combined Materials for Surface Bonding Mortar
• Effective Date: 01-Jul-2005

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 359 – 05
Standard Test Method for
1
Early Stiffening of Hydraulic Cement (Mortar Method)
This standard is issued under the fixed designation C 359; 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 187 Test Method for Normal Consistency of Hydraulic
Cement
1.1 This test method covers the determination of early
C 305 PracticeforMechanicalMixingofHydraulicCement
stiffening in hydraulic-cement mortar.
Pastes and Mortars of Plastic Consistency
1.2 ThevaluesstatedinSIunitsarethestandard.Thevalues
C 670 Practice for Preparing Precision and Bias Statements
in parentheses are for information only.
for Test Methods for Construction Materials
1.3 This standard does not purport to address all of the
C 778 Specification for Standard Sand
safety concerns, if any, associated with its use. It is the
C 1005 Specification for Reference Masses and Devices for
responsibility of the user of this standard to establish appro-
Determining Mass and Volume for Use in the Physical
priate safety and health practices and determine the applica-
Testing of Hydraulic Cements
bility of regulatory limitations prior to use. (Warning—Fresh
D 1193 Specification for Reagent Water
hydraulic cementitious mixtures are caustic and may cause
E1 Specification forASTM Liquid-in-Glass Thermometers
chemical burns to skin and tissue upon prolonged exposure.
The use of gloves, protective clothing, and eye protection is
3. Terminology
recommended. Wash contact area with copious amounts of
3.1 Definitions:
wateraftercontact.Washeyesforaminimumof15min.Avoid
3.1.1 early stiffening, n—the early development of stiffness
exposureofthebodytoclothingsaturatedwiththeliquidphase
in the working characteristics of a hydraulic-cement paste,
of the unhardened material. Remove contaminated clothing
2
mortar, or concrete; varieties include false set and flash set.
immediately after exposure.)
3.1.2 false set, n—the early development of stiffness in the
1.4 The text of this standard references notes and footnotes
working characteristics of a hydraulic-cement paste, mortar, or
which provide explanatory material. These notes and footnotes
concrete without the evolution of much heat, which stiffness
(excluding those in tables and figures) shall not be considered
can be dispelled and plasticity regained by further mixing
as requirements of the standard.
without addition of water; also known as “grab set,” “
2. Referenced Documents premature stiffening,” “hesitation set,” and “rubber set.”
3
3.1.3 flash set, n—the early development of stiffness in the
2.1 ASTM Standards:
working characteristics of a hydraulic-cement paste, mortar, or
C 183 Practice for Sampling and the Amount of Testing of
concrete, usually with the evolution of considerable heat,
Hydraulic Cement
which stiffness cannot be dispelled nor can the plasticity be
C 185 Test Method for Air Content of Hydraulic Cement
regained by further mixing without addition of water; also
Mortar
known as “quick set.”
4. Summary of Test Method
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement 4.1 Amortar is prepared with the cement to be tested, using
and is the direct responsibility of Subcommittee C01.30 on Time of Set.
specifiedquantitiesofcement,standardsand,andanamountof
Current edition approved July 1, 2005. Published July 2005. Originally approved
water that will produce a mortar with an initial penetration of
in 1955. Last previous edition approved in 2004 as C 359 – 04.
2
46 63mm,usingthemodifiedVicatapparatus.Measurements
Section on Safety, Manual of Cement Testing, Annual Book of ASTM
Standards, Vol 04.01.
of penetration are made at stipulated intervals after the begin-
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ning of the mixing procedure. Upon completion of the first
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
series of penetration measurements, the mortar is returned to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. the mixer to be remixed. Following the remix procedure, an
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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.
C359–05
additional penetration, termed the remix penetration, is deter-
mined. The report is a tabulation of the penetration measure-
ments and the amo
...