ASTM C186-17
(Test Method)Standard Test Method for Heat of Hydration of Hydraulic Cement (Withdrawn 2019)
Standard Test Method for Heat of Hydration of Hydraulic Cement (Withdrawn 2019)
SIGNIFICANCE AND USE
3.1 The purpose of this test is to determine if the hydraulic cement under test meets the heat of hydration requirement of the applicable hydraulic cement specification.
3.2 This test may also be used for research purposes when it is desired to determine the heat of hydration of hydraulic cement at any age.
Note 1: When tests are performed for research purposes, useful additional information can be obtained by determining fineness, chemical and compound compositions.
3.3 Determination of the heat of hydration of hydraulic cements provides information that is helpful for calculating temperature rise in mass concrete.
SCOPE
1.1 This test method covers the determination of the heat of hydration of a hydraulic cement by measuring the heat of solution of the dry cement and the heat of solution of a separate portion of the cement that has been partially hydrated for 7 and for 28 days, the difference between these values being the heat of hydration for the respective hydrating period.
1.2 The results of this test method may be inaccurate if some of the components of the hydraulic cement are insoluble in the nitric acid/hydrofluoric acid solution.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 Values in SI units shall be obtained by measurement in SI units or by appropriate conversion, using the Rules for Conversion and Rounding given in Standard IEEE/ASTM SI 10, or measurements made in other units.
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, health, and environmental 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.2
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
WITHDRAWN RATIONALE
This test method covers the determination of the heat of hydration of a hydraulic cement by measuring the heat of solution of the dry cement and the heat of solution of a separate portion of the cement that has been partially hydrated for 7 and for 28 days, the difference between these values being the heat of hydration for the respective hydrating period.
Formerly under the jurisdiction of Committee C01 on Cement, this test method was withdrawn in October 2019 and replaced by Test Method C1702 for Measurement of Heat of Hydration of Hydraulic Cementitious Materials Using Isothermal Conduction Calorimetry.1
General Information
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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: C186 − 17
Standard Test Method for
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Heat of Hydration of Hydraulic Cement
This standard is issued under the fixed designation C186; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
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1.1 This test method covers the determination of the heat of 2.1 ASTM Standards:
hydration of a hydraulic cement by measuring the heat of C109/C109M Test Method for Compressive Strength of
solutionofthedrycementandtheheatofsolutionofaseparate Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
portion of the cement that has been partially hydrated for 7 and Specimens)
for 28 days, the difference between these values being the heat C114 Test Methods for Chemical Analysis of Hydraulic
of hydration for the respective hydrating period. Cement
C670 Practice for Preparing Precision and Bias Statements
1.2 The results of this test method may be inaccurate if
for Test Methods for Construction Materials
some of the components of the hydraulic cement are insoluble
C1005 Specification for Reference Masses and Devices for
in the nitric acid/hydrofluoric acid solution.
Determining Mass and Volume for Use in the Physical
1.3 The values stated in SI units are to be regarded as
Testing of Hydraulic Cements
standard. No other units of measurement are included in this
E11 Specification for Woven Wire Test Sieve Cloth and Test
standard.
Sieves
1.4 Values in SI units shall be obtained by measurement in IEEE/ASTM SI 10 Standard for Use of the International
System of Units (SI): The Modern Metric System
SI units or by appropriate conversion, using the Rules for
Conversion and Rounding given in Standard IEEE/ASTM SI
3. Significance and Use
10, or measurements made in other units.
3.1 The purpose of this test is to determine if the hydraulic
1.5 This standard does not purport to address all of the
cement under test meets the heat of hydration requirement of
safety concerns, if any, associated with its use. It is the
the applicable hydraulic cement specification.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- 3.2 This test may also be used for research purposes when it
is desired to determine the heat of hydration of hydraulic
mine the applicability of regulatory limitations prior to use.
Warning—Fresh hydraulic cementitious mixtures are caustic cement at any age.
and may cause chemical burns to skin and tissue upon
NOTE 1—When tests are performed for research purposes, useful
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prolonged exposure.
additional information can be obtained by determining fineness, chemical
1.6 This international standard was developed in accor- and compound compositions.
dance with internationally recognized principles on standard-
3.3 Determination of the heat of hydration of hydraulic
ization established in the Decision on Principles for the
cements provides information that is helpful for calculating
Development of International Standards, Guides and Recom-
temperature rise in mass concrete.
mendations issued by the World Trade Organization Technical
4. Apparatus
Barriers to Trade (TBT) Committee.
4.1 Calorimetric Apparatus:
4.1.1 Calorimeter—The calorimeter, such as that illustrated
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This test method is under the jurisdiction ofASTM Committee C01 on Cement
in Fig. 1, shall consist of a 0.5 L, wide-mouth vacuum jar, with
and is the direct responsibility of Subcommittee C01.26 on Heat of Hydration.
Current edition approved Oct. 1, 2017. Published November 2017. Originally
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approved in 1944. Last previous edition approved in 2015 as C186 – 15a. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/C0186-17. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Section on Safety, Manual of Cement Testing, Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on
Standards, Vol 04.01. the ASTM website.
*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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C186 − 17
FIG. 1 Calorimeter
cork stopper, or other suitable non-reactive stopper held in a 4.1.3 Thermometers—Two thermometers are required. One
suitably insulated container (see 4.1.2) to keep the vacuum jar isahigh-precisionthermometerrequiredtodeterminetempera-
in position and to protect the jar from undue temperature ture rise associated with dissolution of cement during determi-
fluctuations. The vacuum jar s
...
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