ASTM C807-05

Standard Test Method for Time of Setting of Hydraulic Cement Mortar by Modified Vicat Needle

SIGNIFICANCE AND USE
The purpose of this test method is to establish whether or not a cement complies with a specification limit on time of setting. It has been found to be particularly applicable for the determination of the setting time of expansive cements (see Specification C 845).
SCOPE
1.1 This test method covers the determination of the time of setting of hydraulic cement mortar by means of the modified Vicat needle.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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.)
1.3 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-Apr-2005
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C01 - Cement
• Drafting Committee: C01.30 - Time of Set

Relations

• Replaces: ASTM C807-03a - Standard Test Method for Time of Setting of Hydraulic Cement Mortar by Modified Vicat Needle
• Effective Date: 01-May-2005
• Replaced By: ASTM C807-08 - Standard Test Method for Time of Setting of Hydraulic Cement Mortar by Modified Vicat Needle
• Effective Date: 01-Jun-2008
• Referred By: ASTM C845/C845M-18 - Standard Specification for Expansive Hydraulic Cement
• Effective Date: 01-May-2005
• Referred By: ASTM C183/C183M-23 - Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement
• Effective Date: 01-May-2005
• Referred By: ASTM C827/C827M-23 - Standard Test Method for Change in Height at Early Ages of Cylindrical Specimens of Cementitious Mixtures
• Effective Date: 01-May-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 807 – 05
Standard Test Method for
Time of Setting of Hydraulic Cement Mortar by Modified
1
Vicat Needle
This standard is issued under the fixed designation C 807; 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 219 Terminology Relating to Hydraulic Cement
C 305 PracticeforMechanicalMixingofHydraulicCement
1.1 This test method covers the determination of the time of
Pastes and Mortars of Plastic Consistency
setting of hydraulic cement mortar by means of the modified
C511 Specification for Mixing Rooms, Moist Cabinets,
Vicat needle.
Moist Rooms, and Water Storage Tanks Used in the
1.2 The values stated in SI units are to be regarded as
Testing of Hydraulic Cements and Concretes
standard. The values given in parentheses are for information
C 670 Practice for Preparing Precision and Bias Statements
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 845 Specification for Expansive Hydraulic Cement
responsibility of the user of this standard to establish appro-
C 1005 Specification for Reference Masses and Devices for
priate safety and health practices and determine the applica-
Determining Mass and Volume for Use in the Physical
bility of regulatory limitations prior to use. (Warning—Fresh
Testing of Hydraulic Cements
hydraulic cementitious mixtures are caustic and may cause
D 1193 Specification for Reagent Water
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 Terms used in this standard are defined in Terminology
wateraftercontact.Washeyesforaminimumof15min.Avoid
C 219.
exposureofthebodytoclothingsaturatedwiththeliquidphase
of the unhardened material. Remove contaminated clothing
4. Summary of Test Method
immediately after exposure.)
4.1 Amortar is prepared with the cement to be tested, using
1.4 The text of this standard references notes and footnotes
stipulated quantities of cement and water, and sufficient stan-
which provide explanatory material. These notes and footnotes
dard sand to produce a required consistency as determined by
(excluding those in tables and figures) shall not be considered
a stipulated penetration using the plunger of the modifiedVicat
as requirements of the standard.
apparatus. Mortar of the proper consistency is then tested for
2. Referenced Documents time of setting, using the needle of the modified Vicat
2 apparatus for the determination of a stipulated penetration.The
2.1 ASTM Standards:
time required to obtain the stipulated penetration of the
C 109/C 109M Test Method for Compressive Strength of
modified Vicat needle is the time of setting.
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
Specimens)
5. Significance and Use
C 183 Practice for Sampling and the Amount of Testing of
5.1 The purpose of this test method is to establish whether
Hydraulic Cement
or not a cement complies with a specification limit on time of
C 187 Test Method for Normal Consistency of Hydraulic
setting. It has been found to be particularly applicable for the
Cement
determination of the setting time of expansive cements (see
Specification C 845).
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
and is the direct responsibility of Subcommittee C01.30 on Time of Set.
6. Apparatus
Current edition approved May 1, 2005. Published May 2005. Originally
6.1 Tamper and Trowel, conforming to the requirements of
approved in 1975. Last previous edition approved in 2003 as C 807 – 03a.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Test Method C 109/C 109M.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.2 VicatApparatus, conforming to the requirements ofTest
Standards volume information, refer to the standard’s Document Summary page on
Method C 187, with the following modifications:
the ASTM website.
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C807–05
6.2.1 For consistency determination, the plunger end of the center of the specimen with the longitudinal axis of the tamper
movable rod shall be 17.5 6 0.5 mm in diameter instead of 10 at the center of the mold and rotate the tamper 45° between
mm, and the total mass of the movable rod (including the each stroke. Then fill the mold to over
...