ASTM C566-13
(Test Method)Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying
Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying
SIGNIFICANCE AND USE
4.1 This test method is sufficiently accurate for usual purposes, such as adjusting batch quantities of ingredients for concrete. It will generally measure the moisture in the test sample more reliably than the sample can be made to represent the aggregate supply. In cases where the aggregate itself is altered by heat, or where more refined measurement is required, the test should be conducted using a ventilated, controlled temperature oven.
4.2 Large particles of coarse aggregate, especially those larger than 50 mm, will require greater time for the moisture to travel from the interior of the particle to the surface. The user of this test method should determine by trial if rapid drying methods provide sufficient accuracy for the intended use when drying large size particles.
SCOPE
1.1 This test method covers the determination of the percentage of evaporable moisture in a sample of aggregate by drying both surface moisture and moisture in the pores of the aggregate. Some aggregate may contain water that is chemically combined with the minerals in the aggregate. Such water is not evaporable and is not included in the percentage determined by this test method.
1.2 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.Note 1—Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.
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. For specific precautionary statements, see 5.3.1, 7.2.1, and 7.3.1.
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Designation: C566 − 13
Standard Test Method for
1
Total Evaporable Moisture Content of Aggregate by Drying
This standard is issued under the fixed designation C566; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope for Test Methods for Construction Materials
D75Practice for Sampling Aggregates
1.1 This test method covers the determination of the per-
E11Specification forWovenWireTest Sieve Cloth andTest
centage of evaporable moisture in a sample of aggregate by
Sieves
drying both surface moisture and moisture in the pores of the
2.2 Other Document:
aggregate. Some aggregate may contain water that is chemi-
3
National Research Council Report SHRP-P-619
cally combined with the minerals in the aggregate. Such water
is not evaporable and is not included in the percentage
3. Terminology
determined by this test method.
3.1 Definitions:
1.2 The values stated in SI units are to be regarded as the
3.1.1 For definitions of terms used in this test method, refer
standard. No other units of measurement are included in this
to Terminology C125.
standard.
NOTE 1—Sieve size is identified by its standard designation in
4. Significance and Use
Specification E11. The alternative designation given in parentheses is for
4.1 This test method is sufficiently accurate for usual
information only and does not represent a different standard sieve size.
purposes, such as adjusting batch quantities of ingredients for
1.3 This standard does not purport to address all of the
concrete. It will generally measure the moisture in the test
safety concerns, if any, associated with its use. It is the
samplemorereliablythanthesamplecanbemadetorepresent
responsibility of the user of this standard to establish appro-
the aggregate supply. In cases where the aggregate itself is
priate safety and health practices and determine the applica-
altered by heat, or where more refined measurement is
bility of regulatory limitations prior to use. For specific
required, the test should be conducted using a ventilated,
precautionary statements, see 5.3.1, 7.2.1, and 7.3.1.
controlled temperature oven.
2. Referenced Documents
4.2 Large particles of coarse aggregate, especially those
2
largerthan50mm,willrequiregreatertimeforthemoistureto
2.1 ASTM Standards:
travel from the interior of the particle to the surface. The user
C29/C29MTest Method for Bulk Density (“Unit Weight”)
of this test method should determine by trial if rapid drying
and Voids in Aggregate
methods provide sufficient accuracy for the intended use when
C125Terminology Relating to Concrete and Concrete Ag-
drying large size particles.
gregates
C127Test Method for Relative Density (Specific Gravity)
5. Apparatus
and Absorption of Coarse Aggregate
5.1 Balance—A balance or scale accurate, readable, and
C128Test Method for Relative Density (Specific Gravity)
sensitivetowithin0.1%ofthetestloadatanypointwithinthe
and Absorption of Fine Aggregate
range of use.Within any interval equal to 10% of the capacity
C670Practice for Preparing Precision and Bias Statements
of the balance or scale used to determine mass, the load
indication shall be accurate within 0.1% of the difference in
1
This test method is under the jurisdiction of ASTM Committee C09 on
masses.
Concrete and ConcreteAggregatesand is the direct responsibility of Subcommittee
5.2 Source of Heat—Aventilated oven capable of maintain-
C09.20 on Normal Weight Aggregates.
Current edition approved Feb. 1, 2013. Published February 2013. Originally
ing the temperature surrounding the sample at 110 6 5°C.
approved in 1965. Last previous edition approved in 2004 as C566–97 (2004).
Where close control of the temperature is not required (see
DOI: 10.1520/C0566-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from the National Research Council, 2101 Constitution Ave., N.W.,
the ASTM website. Washington, DC 20418.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C566 − 13
4.1), other suitable sources of heat may be used, such as an 7.3 Whenahotplateisused,dryingcanbeexpeditedbythe
electric or gas hot plate, electric heat lamps, or a ventilated following procedure.Add sufficient anhydrous denatured alco-
microwave oven. hol to cover the moist sample. Sti
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C566 − 97 (Reapproved 2004) C566 − 13
Standard Test Method for
1
Total Evaporable Moisture Content of Aggregate by Drying
This standard is issued under the fixed designation C566; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This test method covers the determination of the percentage of evaporable moisture in a sample of aggregate by drying both
surface moisture and moisture in the pores of the aggregate. Some aggregate may contain water that is chemically combined with
the minerals in the aggregate. Such water is not evaporable and is not included in the percentage determined by this test method.
1.2 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are No other units of
measurement are included in this standard.
NOTE 1—Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information
only and does not represent a different standard sieve size.provided 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. For specific precautionary statements, see 5.3.1, 7.2.1, and 7.3.1.
2. Referenced Documents
2
2.1 ASTM Standards:
C29/C29M Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate
C125 Terminology Relating to Concrete and Concrete Aggregates
C127 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate
C128 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
D75 Practice for Sampling Aggregates
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
2.2 Other Document:
3
National Research Council Report SHRP-P-619
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology C125.
4. Significance and Use
4.1 This test method is sufficiently accurate for usual purposes, such as adjusting batch quantities of ingredients for concrete.
It will generally measure the moisture in the test sample more reliably than the sample can be made to represent the aggregate
supply. In cases where the aggregate itself is altered by heat, or where more refined measurement is required, the test should be
conducted using a ventilated, controlled temperature oven.
1
This test method is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee C09.20 on
Normal Weight Aggregates.
Current edition approved February 1, 2004Feb. 1, 2013. Published March 2004February 2013. Originally approved in 1965. Last previous edition approved in 19972004
as C566 – 97.C566 – 97 (2004). DOI: 10.1520/C0566-97R04.10.1520/C0566-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from the National Research Council, 2101 Constitution Ave., N.W., Washington, DC 20418.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C566 − 13
4.2 Large particles of coarse aggregate, especially those larger than 50 mm (2 in.), mm, will require greater time for the moisture
to travel from the interior of the particle to the surface. The user of this test method should determine by trial if rapid drying
methods provide sufficient accuracy for the intended use when drying large size particles.
5. Apparatus
5.1 Balance—A balance or scale accurate, readable, and sensitive to within 0.1 % of the test load at any point within the range
of use. Within any interval equal to 10 % of the capacity of the balance or scale used to determine mass, the load indication shall
be accura
...
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