ASTM C70-13

Standard Test Method for Surface Moisture in Fine Aggregate

SIGNIFICANCE AND USE
3.1 This test method is not widely used. However, it is a convenient procedure for field or plant determination of moisture content of fine aggregate if specific gravity values are known and if drying facilities are not available. It can be used to adjust the aggregate mass for moisture content and to determine surface moisture contribution to mixing water in portland cement concrete.  
3.2 The accuracy of the test method depends upon accurate information on the bulk specific gravity of the material in a saturated surface-dry condition.
SCOPE
1.1 This test method covers field determination of the amount of surface moisture in fine aggregate by displacement in water.  
1.2 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.  
1.3 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

General Information

• Status: Historical
• Publication Date: 31-Jan-2013
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.20 - Aggregates

Relations

• Replaced By: ASTM C70-20 - Standard Test Method for Surface Moisture in Fine Aggregate
• Effective Date: 01-Feb-2020

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C70 − 13 American Association State
Highway and Transportation Officials Standard
AASHTO No.: T142
Standard Test Method for
1
Surface Moisture in Fine Aggregate
This standard is issued under the fixed designation C70; 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.Asuperscript
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 3.2 The accuracy of the test method depends upon accurate
information on the bulk specific gravity of the material in a
1.1 This test method covers field determination of the
saturated surface-dry condition.
amount of surface moisture in fine aggregate by displacement
in water.
4. Apparatus
1.2 The values stated in SI units are to be regarded as the
4.1 Balance,havingacapacityof2kgormoreandsensitive
standard. No other units of measurement are included in this
to 0.5 g or less.
standard.
4.2 Flask—Asuitable container or flask, preferably of glass
1.3 This standard does not purport to address all of the
or noncorrosive metal. The container may be a pycnometer, a
safety concerns, if any, associated with its use. It is the
volumetric flask, a graduated volumetric flask, or other suitable
responsibility of the user of this standard to establish appro-
measuring device. The volume of the container shall be from
priate safety and health practices and determine the applica-
two to three times the loose volume of the sample. The
bility of regulatory limitations prior to use.
container shall be so designed that it can be filled to the mark,
or the volume of its contents read, within 0.5 mL or less.
2. Referenced Documents
5. Sample
2
2.1 ASTM Standards:
5.1 Selectarepresentativesampleofthefineaggregatetobe
C128 Test Method for Relative Density (Specific Gravity)
tested for surface moisture content. It shall weigh not less than
and Absorption of Fine Aggregate
200 g. Larger samples will yield more accurate results.
C566 Test Method forTotal Evaporable Moisture Content of
Aggregate by Drying
6. Procedure
C670 Practice for Preparing Precision and Bias Statements
6.1 The surface water content may be determined either by
for Test Methods for Construction Materials
mass or volume. In each case the test shall be made at a
temperature range of 18 to 29°C.
3. Significance and Use
6.2 Determination by Mass—Determine the mass of the
3.1 This test method is not widely used. However, it is a
container, in grams, filled to the mark with only water. Before
convenient procedure for field or plant determination of
placing the sample into the container, adjust the level of the
moisture content of fine aggregate if specific gravity values are
water so that it will be sufficient to cover the sample without
known and if drying facilities are not available. It can be used
going over the original mark. Introduce the weighed sample of
to adjust the aggregate mass for moisture content and to
fine aggregate into the container and remove the entrapped air.
determine surface moisture contribution to mixing water in
Fill the container to the original mark, and determine the mass
portland cement concrete.
in grams. Calculate the amount of water displaced by the
sample, as follows:
1
This test method is under the jurisdiction of ASTM Committee C09 on
M 5 M 1M 2 M (1)
d c s
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
C09.20 on Normal Weight Aggregates.
where:
Current edition approved Feb. 1, 2013. Published February 2013. Originally
M = mass of water displaced by the sample, g,
d
approved in 1970. Last previous edition approved in 2006 as C70 – 06. DOI:
M = mass of container filled to the mark with water, g,
10.1520/C0070-13.
c
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or M = mass of sample, g, and
s
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
M = mass of container and sample, filled to the mark with
Standards volume information, refer to the standard’s Document Summary page on
water, g.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C70−13
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C70−13
6.3 Determination by Volume—Measure a volume of water,
P = absorption of the fine aggregate, %, determined in
a
in millilitres, sufficient to cover the sample and place in the
accordance with Test Method C128.
container. Introduce the weighed sample of fine aggregate into
Total moisture content, on a dry aggregate basis, is the sum
the container and rem
...

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: C70 − 06 C70 − 13 American Association State
Highway and Transportation Officials Standard
AASHTO No.: T142
Standard Test Method for
1
Surface Moisture in Fine Aggregate
This standard is issued under the fixed designation C70; 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*Scope
1.1 This test method covers field determination of the amount of surface moisture in fine aggregate by displacement in water.
1.2 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.
1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information
purposes only.No other units of measurement are included in this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
C128 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate
C566 Test Method for Total Evaporable Moisture Content of Aggregate by Drying
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
3. Significance and Use
3.1 This test method is not widely used. However, it is a convenient procedure for field or plant determination of moisture
content of fine aggregate if specific gravity values are known and if drying facilities are not available. It can be used to adjust the
aggregate mass for moisture content and to determine surface moisture contribution to mixing water in portland cement concrete.
3.2 The accuracy of the test method depends upon accurate information on the bulk specific gravity of the material in a saturated
surface-dry condition.
4. Apparatus
4.1 Balance, having a capacity of 2 kg or more and sensitive to 0.5 g or less.
4.2 Flask—A suitable container or flask, preferably of glass or noncorrosive metal. The container may be a pycnometer, a
volumetric flask, a graduated volumetric flask, or other suitable measuring device. The volume of the container shall be from two
to three times the loose volume of the sample. The container shall be so designed that it can be filled to the mark, or the volume
of its contents read, within 0.5 mL or less.
5. Sample
5.1 Select a representative sample of the fine aggregate to be tested for surface moisture content. It shall weigh not less than
200 g. Larger samples will yield more accurate results.
6. Procedure
6.1 The surface water content may be determined either by mass or volume. In each case the test shall be made at a temperature
range of 18 to 29°C (65 to 85°F).29°C.
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 Feb. 15, 2006Feb. 1, 2013. Published March 2006February 2013. Originally approved in 1970. Last previous edition approved in 20012006 as
C70 – 94C70 – 06.(2001). DOI: 10.1520/C0070-06.10.1520/C0070-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on 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
1

---------------------- Page: 1 ----------------------
C70 − 13
6.2 Determination by Mass—Determine the mass of the container, in grams, filled to the mark with only water. Before placing
the sample into the container, adjust the level of the water so that it will be sufficient to cover the sample without going over the
original mark. Introduce the weighed sample of fine aggregate into the container and remove the entrainedentrapped air. Fill the
container to the original mark, and determine the mass in grams. Calculate the amount of water displaced by the sample, as follows:
M 5 M 1M 2 M (1)
d c s
where:
M = mass of water displaced by the sample, g,
d
M = mass of container filled to
...