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ASTM C87-83(1995)e1

(Test Method)

Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

SCOPE
1.1 This test method covers the determination of the effect on mortar strength of the organic impurities in fine aggregate, whose presence is indicated by tests with Test Method C40. Comparison is made between compressive strengths of mortar made with washed and unwashed fine aggregate.  
1.2 The SI values shown in parentheses are provided for information purposes 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.

General Information

Status
Historical
Publication Date
31-Dec-1994
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C09 - Concrete and Concrete Aggregates
Drafting Committee
C09.20 - Aggregates
Current Stage
Ref Project

Relations

Replaced By
ASTM C87-03 - Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
Effective Date
10-Jan-2003
Referred By
ASTM C156-20 - Standard Test Method for Water Loss [from a Mortar Specimen] Through Liquid Membrane-Forming Curing Compounds for Concrete
Effective Date
01-Jan-1995

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ASTM C87-83(1995)e1 - Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of MortarASTM C87-83(1995)e1 - Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
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ASTM C87-83(1995)e1 - Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: C 87 – 83 (Reapproved 1995)
Standard Test Method for
Effect of Organic Impurities in Fine Aggregate on Strength
of Mortar
This standard is issued under the fixed designation C 87; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
e NOTE—Section 13, Keywords, was added in November 1995.
1. Scope D 75 Practice for Sampling Aggregates
D 3665 Practice for Random Sampling of Construction
1.1 This test method covers the determination of the effect
Materials
on mortar strength of the organic impurities in fine aggregate,
whose presence is indicated by tests with Test Method C 40.
3. Significance and Use
Comparison is made between compressive strengths of mortar
3.1 This test method is of significance in making a final
made with washed and unwashed fine aggregate.
determination of the acceptability of fine aggregates with
1.2 The SI values shown in parentheses are provided for
respect to the requirements of Specification C 33 concerning
information purposes only.
organic impurities.
1.3 This standard does not purport to address all of the
3.2 This test method is only applicable to those samples
safety concerns, if any, associated with its use. It is the
which, when tested in accordance with Test Method C 40, have
responsibility of the user of this standard to establish appro-
produced a supernatant liquid with a color darker than that of
priate safety and health practices and determine the applica-
the reference standard color solution.
bility of regulatory limitations prior to use.
4. Basis for Comparison
2. Referenced Documents
4.1 The fine aggregate shall be compared in mortar, as
2.1 ASTM Standards:
described in this test method, with a sample of the same
C 33 Specification for Concrete Aggregates
aggregate that has been washed in a 3 % solution of sodium
C 40 Test Method for Organic Impurities in Fine Aggre-
hydroxide followed by thorough rinsing in water. The washing
gates for Concrete
shall be repeated a sufficient number of times until the
C 109/C 109M Test Method for Compressive Strength of
supernatant liquid obtained in Test Method C 40 has a color
Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube
3 lighter than standard. (Note 1) The washing shall be performed
Specimens)
in such a way as to minimize the loss of fines and so that the
C 128 Test Method for Specific Gravity and Absorption of
2 washed aggregate has a fineness modulus within 0.10 of that of
Fine Aggregate
the unwashed aggregate. The washed and rinsed aggregate
C 150 Specification for Portland Cement
shall be checked with a suitable indicator such as phenolphtha-
C 230 Specification for Flow Table for Use in Tests of
3 lein or litmus to assure that sodium hydroxide has been
Hydraulic Cement
removed effectively prior to preparation of the mortar.
C 305 Practice for Mechanical Mixing of Hydraulic Cement
3 4.2 Unless otherwise specified or permitted, strength com-
Pastes and Mortars of Plastic Consistency
parisons shall be made at 7 days in accordance with the
C 670 Practice for Preparing Precision and Bias Statements
2 following conditions:
for Test Methods for Construction Materials
4.2.1 Mix three batches of mortar with the aggregate
C 702 Practice for Reducing Samples of Aggregate to
2 washed in sodium hydroxide and three batches with the
Testing Size
unwashed aggregate on the same day. Mix the batches for the
two conditions alternately.
4.2.2 Mold three 2-in. or 50-mm cubes from each batch.
This test method is under the jurisdiction of ASTM Committee C-9 on
4.2.3 Test the three cubes from each batch at the age
Concretes and Concrete Aggregatesand is the direct responsibility of Subcommittee
specified.
C09.20on Normal Weight Aggregates.
Current edition approved Oct. 28, 1983. Published December 1983. Originally
NOTE 1—Test Method C 40 describes a standard procedure and an
published as C 87–31. Last Previous edition C 87–69 (1975).
Annual Book of ASTM Standards, Vol 04.02.
3 4
Annual Book of ASTM Standards, Vol 04.01. Annual Book of ASTM Standards, Vol 04.03.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C87
alternative procedure for the determination of color value. In the standard
prepare a quantity of aggregate estimated to provide slightly
procedure there is a single reference standard color. In the alternative
more than needed to produce a batch of the desired consis-
procedure five colored glass standards are used. The reference standard
tency.
color is equivalent to color Plate No. 3.
NOTE 3—If the absorption has been determined in accordance with Test
5. Apparatus
Method C 128, the aggregate may be prepared for test by adding to a
known mass of dry aggregate the amount of water it will absorb, mixing
5.1 Flow Table, Flow Mold, and Caliper, as described in
thoroughly, and permitting the aggregate to stand in a covered pan for 30
Specification C 230.
min before use.
5.2 Tamper, Trowel, Cube Molds, and Testing Machine,as
described in Test Method C 109/C 109M. 9.4 After placing all the mixing water in the bowl, add the
cement to the water. Start the mixer and mix at the slow speed
5.3 Mixer, Bowl, and Paddle, as described in Practice
C 305. (140 65 rpm) for 30 s.
9.5 While still mixing at slow speed over a 30-s period, add
6. Reagents and Materials
a measured quantity of aggregate estimated to provide the
6.1 Portland cement shall be Type I or Type II, meeting the
proper consistency.
requirements of Specification C 150.
NOTE 4—The quantity of aggregate used may be determined by
6.2 Sodium Hydroxide Solution (3 %)—Dissolve 3 parts by
subtracting from a known quantity of prepared aggregate the mass of the
weight of sodium hydroxide (NaOH) in 97 parts water.
portion remaining after mixing.
7. Sampling
9.6 Stop the mixer, change to medium speed (285 610
rpm), and mix for 30 s.
7.1 Sample portions of fine aggregate for this test shall be
9.7 Stop the mixer and let the mortar stand for 1 ⁄2 min.
obtained from the same sample used for Test Method C 40.
During the first 15 s of this interval, quickly scrape down into
Needed reduction of samples to obtain test portions shall be in
the batch any mortar that may have collected on the side of the
accordance with Practice C 702.
bowl, then for the remainder of this interval, cover the bowl
7.2 Secure an additional field sample if needed from the
with the lid.
aggregate supply in accordance with Practice D 75 and Prac-
tice D 3665. 9.8 Finish by mixing for 1 min at medium speed. If the flow
appears to be too high additional sand may be added after the
8. Temperature
first 30 s of this mixing period. If s
...

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5.1 Wear on mortar surfaces can be generated by a number of factors including skidding, scraping or sliding of objects on the surface, foot and tire traffic. This guide provides a means to quantify the abrasion resistance of treated or untreated mortars and other similar products.
FIG. 1 Rotary Platform Abraser
FIG. 2 Arrangement of Rotary Platform Abraser Test Set-up  
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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.  
1.4 The text of this standard references 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.  
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Standard Test Method for Change in Height at Early Ages of Cylindrical Specimens of Cementitious Mixtures

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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.  
4.2 This test method can be used for research purposes to provide information on volume changes taking place in cementitious mixtures between the time just after mixing and the time of hardening. However, the specimen used in this test method is not completely unrestrained so that the measurements are primarily useful for comparative purposes rather than as absolute values. Further, the degree of restraint to which the specimen is subjected varies with the viscosity and degree of hardening of the mixture.
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1.2 This test method covers height change measurements at early ages for cementitious mixtures of paste, grout, mortar, and concrete.  
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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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  • Technical specification
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ASTM
ASTM C87/C87M-23(Test Method)
Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar

SIGNIFICANCE AND USE
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.
SCOPE
1.1 This test method covers the determination of the effect on mortar strength of the organic impurities in fine aggregate, whose presence is indicated using Test Method C40/C40M. Comparison is made between compressive strengths of mortar made with washed and unwashed fine aggregate.  
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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  • Standard
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