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ASTM C1741-11

(Test Method)

Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout

Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout

SIGNIFICANCE AND USE
This test method is designed to evaluate the bleed stability of a freshly-mixed grout under static pressure. It can be used in both the laboratory to qualify grout materials and in the field as a quality control test. When used to qualify grout materials, replicate tests may be specified. It is intended that the test pressure, acceptance criteria, and number of replicate tests be set forth in the contract documents if this test method is referenced. These values will normally vary depending on the vertical rise of the post-tensioning tendon.  
Note 1—Appendix X1 includes a reference for an example of test pressures and bleeding limits.
The procedure for this test was developed by Schokker et al. based on previous work by Schupack.
SCOPE
1.1 This test method is designed to determine the bleed stability of freshly-mixed cementitious grout under static pressure.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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. (WarningFresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)

General Information

Status
Historical
Publication Date
30-Apr-2011
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C09 - Concrete and Concrete Aggregates
Drafting Committee
C09.41 - Hydraulic Cement Grouts
Current Stage
Ref Project

Relations

Replaced By
ASTM C1741-11a - Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout
Effective Date
15-Dec-2011

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ASTM C1741-11 - Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon GroutASTM C1741-11 - Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout
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ASTM C1741-11 - Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout
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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:C1741–11
Standard Test Method for
Bleed Stability of Cementitious Post-Tensioning Tendon
Grout
This standard is issued under the fixed designation C1741; 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 the solid materials within the grout and the filtering action of
strands and wires when subjected to static pressure and
1.1 This test method is designed to determine the bleed
capillary action.
stability of freshly-mixed cementitious grout under static
3.2.3 grout, n—mixture of cementitious material and water,
pressure.
with or without aggregate and admixtures, proportioned to
1.2 Units—The values stated in SI units are to be regarded
produce a pourable consistency without segregation of the
as standard. No other units of measurement are included in this
constituents.
standard.
3.2.4 post-tensioning, adj—referring to a method of pre-
1.3 This standard does not purport to address all of the
stressing in which prestressing steel is tensioned after the
safety concerns, if any, associated with its use. It is the
concrete has gained sufficient strength.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Significance and Use
bility of regulatory limitations prior to use. (Warning—Fresh
4.1 This test method is designed to evaluate the bleed
hydraulic cementitious mixtures are caustic and may cause
stability of a freshly-mixed grout under static pressure. It can
chemical burns to skin and tissue upon prolonged exposure.)
be used in both the laboratory to qualify grout materials and in
2. Referenced Documents the field as a quality control test. When used to qualify grout
materials, replicate tests may be specified. It is intended that
2.1 ASTM Standards:
the test pressure, acceptance criteria, and number of replicate
C125 Terminology Relating to Concrete and Concrete Ag-
tests be set forth in the contract documents if this test method
gregates
is referenced. These values will normally vary depending on
C938 Practice for Proportioning Grout Mixtures for
the vertical rise of the post-tensioning tendon.
Preplaced-Aggregate Concrete
NOTE 1—Appendix X1 includes a reference for an example of test
3. Terminology
pressures and bleeding limits.
3.1 Definitions—For definitions of terms used in this test
4.2 The procedure for this test was developed by Schokker
method, refer to Terminology C125.
4 5
et al. based on previous work by Schupack.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 bleed stability, n—of cementitious grout, resistance to
5. Apparatus
bleeding.
5.1 The apparatus consists of a commercially available
3.2.2 bleeding, n—of cementitious post-tensioning tendon
pressure filtration funnel, stand, pressure supply with gauge,
grout, autogenous flow of mixing water within, or its emer-
pressure regulator, valve, drip wick, and bleed water collection
gence from, newly placed grout; caused by the settlement of
container as shown in Fig. 1 and Fig. 2.
5.1.1 Filtration Funnel—A 47-mm diameter stainless steel
pressure filtration funnel with a nominal capacity of 200 mLas
This test method is under the jurisdiction of ASTM Committee C09 on
shown in Fig. 2. The filtration funnel shall have removable
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
C09.41 on Hydraulic Cement Grouts. threaded caps at both ends with a stem for connection of the
Current edition approved May 1, 2011. Published June 2011. DOI: 10.1520/
C1741-11
2 4
Section on Safety Precautions, Manual of Aggregate and Concrete Testing, Schokker,A. J., B.D. Koester, J.E. Breen, and M. E. Kreger, “Development of
Annual Book of ASTM Standards, Vol. 04.02. High Performance Grouts for Bonded Post-Tensioned Structures,” Research Report
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 1405-2, Center for Transportation Research, October 1999.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Schupack, M. “Admixture for Controlling Bleed in Cement Grout Used in
Standards volume information, refer to the standard’s Document Summary page on Post-Tensioning,” Precast/Prestressed Concrete Institute Journal, Nov.-Dec. 1974
the ASTM website. , pp. 1-10.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C1741–11
FIG. 1 Test Apparatus
FIG. 2 47-mm Filtration Funnel with 200 mL Nominal Capacity
gas supply and a 7.0 6 0.5 mm inside diameter stem 90 6 1 glassfilter(1-µmporesize)asshowninFig.2.Thescreenshall
mm long for escape of water. The base of the vessel shall be inserted with the woven side against the glass filter, and the
contain a 35 6 1 mm diameter stainless steel 45 µm (No. 325) funnel gasket shall be placed above the glass filter as shown in
screen that supports a 47 mm diameter Type A/E borosilicate Fig. 2. The glass filter shall cover the screen across the inside
C1741–11
to confirm the long term bleed stability of the grout and this deviation
diameter of the bottom cap and be located under the gasket
should be noted in the report.
when under pressure. Secure the bottom cap before filling the
filtration funnel with grout. The funnel is placed in the stand
7.8 Release the pressure and tip the filtration funnel slightly
after it is filled.
to break the surface tension and allow the bleed water
5.1.2 St
...

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4.1 This test method provides a means for comparing the relative shrinkage or expansion of cementitious mixtures. It is particularly applicable to grouting, patching, and form-filling operations where the objective is to completely fill a cavity or other defined space with a freshly mixed cementitious mixture that will continue to fill the same space at time of hardening. It would be appropriate to use this test method as a basis for prescribing mixtures having restricted or specified volume change before the mixture becomes hard.  
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1.1 This test method covers the determination of change in height of cylindrical specimens from the time of molding until the mixture is hard.  
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1.5 The text of this test method refers to notes and footnotes that provide explanatory information. These notes and footnotes shall not be considered as requirements of the test method.  
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Standard Test Method for Measuring Changes in Height of Cylindrical Specimens of Hydraulic-Cement Grout

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4.1 This test method is intended to provide a means of assessing the ability of a hydraulic-cement grout to retain a stable volume during the stipulated testing period of 28 days, provided that the tendency to change height does not include the effects of drying caused by evaporation, uptake of moisture, carbonation, or exposure to temperatures outside the range 23.0 °C ± 2.0 °C [73 °F ± 3.5 °F] (Note 2). An exception is made when the options described in the section on test conditions are exercised.  
Note 2: This test method does not measure the change in height before setting (see Test Method C827/C827M).
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1.1 This test method covers measurement of the changes in height of hydraulic-cement grout by the use of 75 mm by 150 mm [3 in. by 6 in.] cylinders, when the cylinders are protected so that the tendency to change in height does not include evaporation so as to cause drying, uptake of moisture, carbonation, or exposure to temperatures outside the range 23 °C ± 2.0 °C [73 °F ± 3.5 °F] or, optionally, to another specified temperature controlled within ±2.0 °C [±3.5 °F].  
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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.  
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5.1 This test method is of significance in making a final determination of the acceptability of fine aggregates with respect to the requirements of Specification C33/C33M concerning organic impurities.  
5.2 This test method is applicable to those samples which, when tested in accordance with Test MethodC40/C40M, have produced a supernatant liquid with a color darker than the standard listed in Table 1 of C40/C40M (Organic plate No. 3, Gardner Color Standard No. 14, Circular Disk No. 14 or prepared color solution).  
5.3 Many specifications provide for the acceptance of fine aggregate producing a darker color in the Test Method C40/C40M test, if testing by this test method indicates the strength of the mortar cubes prepared with the unwashed fine aggregate is comparable to the strength of mortar cubes made with the washed fine aggregate.
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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. Some values have only SI units because the inch-pound equivalents are not used in the practice.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.(Warning—Fresh hydraulic cementitous mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure.)2  
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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ASTM
ASTM C387/C387M-23(Specification)
Standard Specification for Packaged, Dry, Combined Materials for Concrete and High Strength Mortar

ABSTRACT
This specification covers the production, properties, packaging, and testing of packaged, dry, combined materials for concrete and mortars. Concrete mixtures covered by this specification includes high-early strength concrete, normal strength concrete, normal weight concrete, high-strength mortar, and mortars for unit masonry. The purchaser shall specify the material desired as concrete, high strength mortar, or mortar for use with unit masonry, and the respective physical requirements. Materials used as ingredients in packaged, dry, combined materials for mortar and concrete shall be composed of aggregates, air-entraining admixtures, blended cement, chemical admixtures, fly ash, ground granulated blast-furnace slag, hydrated lime, latex and powder polymer modifiers, masonry cement, mortar cement, Portland cement, and silica fume. All aggregates shall be dried, without disintegration, to specific moisture content The proportions of cementitious material and aggregate shall be such that the strength requirements will be met. Packaged, dry, combined materials for concrete, high strength mortar and mortar for use with unit masonry shall conform to the respective compressive strength requirements. Scales conforming to the standards will be used for sampling concretes from a single batch using a sufficient quantity. A slump test will be performed to check if additional water is required. In sampling mortar, the contents of an entire package of dry, combined material for mortar for unit masonry or for concrete mortar shall be used. Mortar mixing equipment, which must be provided with a bowl positioning adapter, shall be used to ensure clearance for the largest size aggregate in the mix being tested. The specification includes the following testing methods for mortar: compressive strength, density and yield, air content, and water retention.
SCOPE
1.1 This specification covers the production, properties, packaging, and testing of packaged, dry, combined materials for concrete and high strength mortar. The classifications of concrete and mortar covered are defined in Section 3.
Note 1: The scope of this standard does not cover mortars for unit masonry. Dry preblended mortars for unit masonry are covered by Specification C1714/C1714M.  
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. Some values have only SI units because the inch-pound equivalents are not used in practice.  
1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.  
1.4 The following safety hazards caveat pertains only to the test method portion of this specification. 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.  
1.5 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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