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  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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-Jan-2010
Technical Committee
Drafting Committee
Current Stage
Ref Project

Relations

Buy Standard

Standard
ASTM C786/C786M-10 - 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
English language
4 pages
sale 15% off
Preview
sale 15% off
Preview
Standard
REDLINE ASTM C786/C786M-10 - 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
English language
4 pages
sale 15% off
Preview
sale 15% off
Preview

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: C786/C786M − 10
StandardTest 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.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* C430Test Method for Fineness of Hydraulic Cement by the
45-µm (No. 325) Sieve
1.1 This test method covers wet sieving techniques for
E11Specification forWovenWireTest Sieve Cloth andTest
determination of fineness of hydraulic cement and raw mate-
Sieves
rials by means of the 300-µm (No. 50), the 150-µm (No. 100),
IEEE/ASTM SI 10American National Standard for Use of
and the 75-µm (No. 200) sieves.
theInternationalSystemofUnits(SI):TheModernMetric
1.2 The values stated in either SI units or inch-pound units
System
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
3. Apparatus
system shall be used independently of the other. Combining
3.1 Wet Test Sieves—Standard300-µm (No. 50), 150-µm
values from the two systems may result in non-conformance
(No. 100), or 75-µm (No. 200) sieve cloth conforming to the
withthestandard.ValuesinSIunits[orinch-poundunits]shall
requirements of Specification E11, for standard sieves shall be
be obtained by measurement in SI units [or inch-pound units]
wovenfromAISIType304wire.Theclothshallbemountedin
or by appropriate conversion, using the Rules for Conversion
the frame without distortion, looseness, or wrinkling. Sieve
and Rounding given in IEEE/ASTM SI 10 of measurements
frames are designated as 76.2 or 101.6-mm [3 or 4-in.]
made in other units. Values are stated in SI units when
diameter type, as follows:
inch-pound units are not used in practice.
Sieves
1.3 This standard does not purport to address all of the
76 mm 102 mm
safety concerns, if any, associated with its use. It is the
[3-in.] [4-in.]
mm [in.] mm [in.]
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
Diameter of frame 76 ± 6 102±6
bility of regulatory limitations prior to use.
[3.0 ± 0.25] [4.0 ± 0.25]
Depth of sieve from top of frame 83 ± 6 108±6
2. Referenced Documents
[3.25 ± 0.25] [4.25 ± 0.25]
2
2.1 ASTM Standards:
Overall height 102 ± 6 127±6
C114Test Methods for Chemical Analysis of Hydraulic
[4.0 ± 0.25] [5.0 ± 0.25]
Cement
3.1.1 For a sieve fabricated by soldering the cloth to the
C184Test Method for Fineness of Hydraulic Cement by the
frame, the joint shall be made smooth to prevent material from
150-µm (No. 100) and 75-µm (No. 200) Sieves (With-
lodging in the joints between the sieve cloth and the frame.
3
drawn 2002)
Two-piece sieves shall clamp tightly on the cloth to prevent
particlesfromlodginginthejointsbetweenthesieveclothand
the frame, and shall have legs of sufficient length, 19-mm
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC01onCement
[0.75-in.] minimum, to allow air circulation beneath the sieve
and is the direct responsibility of Subcommittee C01.25 on Fineness.
cloth.
Current edition approved Feb. 1, 2010. Published March 2010. Originally
approvedin1974.Lastpreviouseditionapprovedin2003asC786–96(2003).DOI:
3.2 Spray Nozzle—conforming to the requirements of Test
10.1520/C0786_C0786M-10.
MethodC430.Nozzleshavinganalternativedesignareaccept-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
able if the sieve test results agree with those performed using
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 a nozzle conforming to Test Method C430.
the ASTM website.
3
3.3 Pressure Gage—conforming to the requirements ofTest
The last approved version of this historical standard is referenced on
www.astm.org. Method C430.
*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 − 10
3.4 Balance—analytical, accurate to within 0.005 g. 300-µm(No.50),150-µm(No.100),or75-µm(No.200)sieve
and proceed as directed in Section 6. The sieve correction
3.5 Weights—The weights used in fineness determinations
factor is the difference between the test residue obtained and
shall conform to the requirements of Test Methods C114.
the residue value indicated by the standardization tests of
3.6 Brush—A nylon or pure bristle brush will be required
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:C786–96 (Reapproved 2003) Designation: C786/C786M – 10
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.Anumber 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.
1.2The values stated in SI units are to be regarded as the standard.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C114 Test Methods for Chemical Analysis of Hydraulic Cement
C184 Test Method for Fineness of Hydraulic Cement by the 150-m (No. 100) and 75-m (No. 200) Sieves
C430 Test Method for Fineness of Hydraulic Cement by the 45-m (No. 325) Sieve
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves 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. Apparatus
3.1 Wet Test Sieves—Standard300-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
theframewithoutdistortion,looseness,orwrinkling.Sieveframesaredesignatedas76.2or101.6-mm(3[3or4-in.)4-in.]diameter
type, as follows:
Sieves
76 mm 102 mm
(3-in.) (4-in.)
mm (in.) mm (in.)
76 mm 102 mm
[3-in.] [4-in.]
mm [in.] mm [in.]
Diameter of frame 76 6 6 102 6 6
(3.0 6 0.25) (4.0 6 0.25)
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 June 10, 2003. Published August 2003. Originally approved in 1974. Last previous edition approved in 1996 as C786–96. DOI:
10.1520/C0786-96R03.
Current edition approved Feb. 1, 2010. Published March 2010. Originally approved in 1974. Last previous edition approved in 2003 as C786–96(2003). DOI:
10.1520/C0786_C0786M-10.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.ForAnnualBookofASTMStandards
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 ----------------------
C786/C786M – 10
Diameter of frame 76 6 6 102 6 6
[3.0 6 0.25] [4.0 6 0.25]
Depth of sieve from top of frame 83 6 6 108 6 6
(3.25 6 0.25) (4.25 6 0.25)
Depth of sieve from top of frame 83 6 6 108 6 6
[3.25 6 0.25] [4.25 6 0.25]
Overall height 102 6 6 127 6 6
(4.0 6 0.25) (5.0 6 0.25)
Overall height 102 6 6 127 6 6
[4.0 6 0.25] [5.0 6 0.25]
3.1.1 Forasievefabricatedbysolderingtheclothtotheframe,thejointshallbemadesmoothtopreventmaterialfromlodging
in the joints between the sieve cloth and the frame. Two-piece sieves shall clamp tightly on the cloth to prevent particles from
lodging in the joints between the sieve cloth and the frame, and shall have legs of sufficient length, 19-mm (0.75-in.)[0.75-in.]
minimum, to allow a
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.