ASTM C786/C786M-17
(Test Method)Standard Test Method for Fineness of Hydraulic Cement and Raw Materials by the 300-μm (No. 50), 150-μm (No. 100), and 75-μm (No. 200) Sieves by Wet Methods
Standard Test Method for Fineness of Hydraulic Cement and Raw Materials by the 300-μm (No. 50), 150-μm (No. 100), and 75-μm (No. 200) Sieves by Wet Methods
ABSTRACT
This test method covers wet sieving techniques for determination of fineness of hydraulic cement and raw materials by means of the No. 50, No. 100, and No. 200 sieves. The following apparatus shall be utilized: wet test sieves; spray nozzle; pressure gage; balance; weights; brush; dry test sieves; and NBS SRM No. 1004 (glass bead standard). Dry sieve standardization shall be performed by determining the correction factors and by preparing the standard samples. Wet sieve calibration shall follow and shall utilize the sieve correction factor. The procedure for wet sieving shall include the following: weighing of the sample; recording the weight and transferring the sample quantitatively to a clean dry sieve; wetting the sample thoroughly with a gentle stream of water; removing the sieve from under the nozzle and adjusting the pressure of the spray nozzle; returning the sieve to its position under the nozzle and washing it; moving the sieve in the spray with a circular motion; rinsing the sieve with distilled or deionized water immediately after removing it from the spray; blotting the lower surface of the screen cloth with a damp, clean cloth; drying the sieve and residue in an oven or over a hot plate; cooling the sieve; brushing the residue from the sieve; and weighing the sieve on a balance.
SCOPE
1.1 This test method covers wet sieving techniques for determination of fineness of hydraulic cement and raw materials by means of the 300-μm (No. 50), the 150-μm (No. 100), and the 75-μm (No. 200) sieves.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Values in SI units [or inch-pound units] shall be obtained by measurement in SI units [or inch-pound units] or by appropriate conversion, using the Rules for Conversion and Rounding given in IEEE/ASTM SI 10 of measurements made in other units. Values are stated in SI units when inch-pound units are not used in practice.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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.
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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.
Designation: C786/C786M − 17
Standard Test Method for
Fineness of Hydraulic Cement and Raw Materials by the
300-µm (No. 50), 150-µm (No. 100), and 75-µm (No. 200)
1
Sieves by Wet Methods
This standard is issued under the fixed designation C786/C786M; 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* C125 Terminology Relating to Concrete and Concrete Ag-
gregates
1.1 This test method covers wet sieving techniques for
C184 Test Method for Fineness of Hydraulic Cement by the
determination of fineness of hydraulic cement and raw mate-
150-µm (No. 100) and 75-µm (No. 200) Sieves (With-
rials by means of the 300-µm (No. 50), the 150-µm (No. 100),
3
drawn 2002)
and the 75-µm (No. 200) sieves.
C219 Terminology Relating to Hydraulic Cement
1.2 The values stated in either SI units or inch-pound units
C430 Test Method for Fineness of Hydraulic Cement by the
are to be regarded separately as standard. The values stated in
45-µm (No. 325) Sieve
each system may not be exact equivalents; therefore, each
E11 Specification for Woven Wire Test Sieve Cloth and Test
system shall be used independently of the other. Combining
Sieves
values from the two systems may result in non-conformance
IEEE/ASTM SI 10 American National Standard for Use of
with the standard.Values in SI units [or inch-pound units] shall
theInternationalSystemofUnits(SI):TheModernMetric
be obtained by measurement in SI units [or inch-pound units]
System
or by appropriate conversion, using the Rules for Conversion
and Rounding given in IEEE/ASTM SI 10 of measurements
3. Terminology
made in other units. Values are stated in SI units when
3.1 Definitions:
inch-pound units are not used in practice.
3.1.1 For definitions of terms used in this test method, refer
1.3 This standard does not purport to address all of the
to Terminology C125 and C219.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Apparatus
priate safety, health, and environmental practices and deter-
4.1 Wet Test Sieves—Standard 300-µm (No. 50), 150-µm
mine the applicability of regulatory limitations prior to use.
(No. 100), or 75-µm (No. 200) sieve cloth conforming to the
1.4 This international standard was developed in accor-
requirements of Specification E11, for standard sieves shall be
dance with internationally recognized principles on standard-
wovenfromAISIType304wire.Theclothshallbemountedin
ization established in the Decision on Principles for the
the frame without distortion, looseness, or wrinkling. Sieve
Development of International Standards, Guides and Recom-
frames are designated as 76.2 or 101.6-mm [3 or 4-in.]
mendations issued by the World Trade Organization Technical
diameter type, as follows:
Barriers to Trade (TBT) Committee.
Sieves
76 mm 102 mm
2. Referenced Documents
[3-in.] [4-in.]
2
mm [in.] mm [in.]
2.1 ASTM Standards:
C114 Test Methods for Chemical Analysis of Hydraulic
Diameter of frame 76 ± 6 102±6
Cement
[3.0 ± 0.25] [4.0 ± 0.25]
Depth of sieve from top of frame 83 ± 6 108±6
1
This test method is under the jurisdiction ofASTM Committee C01 on Cement
[3.25 ± 0.25] [4.25 ± 0.25]
and is the direct responsibility of Subcommittee C01.25 on Fineness.
Current edition approved Dec. 1, 2017. Published December 2017. Originally Overall height 102 ± 6 127±6
[4.0 ± 0.25] [5.0 ± 0.25]
approved in 1974. Last previous edition approved in 2016 as C786/
C786M – 10 (2016). DOI: 10.1520/C0786_C0786M-17.
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 The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*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 ----------------------
C786/C786M − 17
4.1.1 For a sieve fabricated by soldering the cloth to the the average of the amounts passing, expressed as percent, as
frame, the joint shall be made smooth to prevent material from the standard value of the sample. Use this standard sample to
lodging in the joints between the sieve cloth and the frame. calibratethewetsieves.Placetheentiresampleinairtightvials
Two-pie
...
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: C786/C786M − 10 (Reapproved 2016) C786/C786M − 17
Standard Test Method for
Fineness of Hydraulic Cement and Raw Materials by the
300-μm (No. 50), 150-μm (No. 100), and 75-μm (No. 200)
1
Sieves by Wet Methods
This standard is issued under the fixed designation C786/C786M; 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*
1.1 This test method covers wet sieving techniques for determination of fineness of hydraulic cement and raw materials by
means of the 300-μm (No. 50), the 150-μm (No. 100), and the 75-μm (No. 200) sieves.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard. Values in SI units [or inch-pound units] shall be obtained by
measurement in SI units [or inch-pound units] or by appropriate conversion, using the Rules for Conversion and Rounding given
in IEEE/ASTM SI 10 of measurements made in other units. Values are stated in SI units when inch-pound units are not used in
practice.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C114 Test Methods for Chemical Analysis of Hydraulic Cement
C125 Terminology Relating to Concrete and Concrete Aggregates
3
C184 Test Method for Fineness of Hydraulic Cement by the 150-μm (No. 100) and 75-μm (No. 200) Sieves (Withdrawn 2002)
C219 Terminology Relating to Hydraulic Cement
C430 Test Method for Fineness of Hydraulic Cement by the 45-μm (No. 325) Sieve
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
IEEE/ASTM SI 10 American National Standard for Use of the International System of Units (SI): The Modern Metric System
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology C125 and C219.
4. Apparatus
4.1 Wet Test Sieves—Standard 300-μm (No. 50), 150-μm (No. 100), or 75-μm (No. 200) sieve cloth conforming to the
requirements of Specification E11, for standard sieves shall be woven from AISI Type 304 wire. The cloth shall be mounted in
the frame without distortion, looseness, or wrinkling. Sieve frames are designated as 76.2 or 101.6-mm [3 or 4-in.] diameter type,
as follows:
1
This test method is under the jurisdiction of ASTM Committee C01 on Cement and is the direct responsibility of Subcommittee C01.25 on Fineness.
Current edition approved April 1, 2016Dec. 1, 2017. Published April 2016December 2017. Originally approved in 1974. Last previous edition approved in 20102016 as
C786/C786M – 10.C786/C786M – 10 (2016). DOI: 10.1520/C0786_C0786M-10R16.10.1520/C0786_C0786M-17.
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
The last approved version of this historical standard is referenced on www.astm.org.
*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 ----------------------
C786/C786M − 17
Sieves
76 mm 102 mm
[3-in.] [4-in.]
mm [in.] mm [in.]
Diameter of frame 76 ± 6 102 ± 6
[3.0 ± 0.25] [4.0 ± 0.25]
Depth of sieve from top of frame 83 ± 6 108 ± 6
[3.25 ± 0.25] [4.25 ± 0.25]
Overall height 102 ± 6 127 ± 6
[4.0 ± 0.25] [5.0 ± 0.25]
4.1.1 For a sieve fabricated by soldering the cloth to the frame, the joint shall be made smooth to prevent material from
...
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