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ASTM C307-03(2012)

(Test Method)

Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic Surfacings

Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic Surfacings

SIGNIFICANCE AND USE
4.1 It is recognized that chemical-resistant mortars, grouts, and monolithic surfacings are not usually under tension when in service; however, such data are useful for purposes of determining the rate of cure and other properties.  
4.2 This test method is not recommended for mortars, grouts, and monolithic surfacings containing aggregate greater than 1/4 in.
SCOPE
1.1 This test method covers the determination of tensile strength of cured chemical-resistant materials in the form of molded briquets. These materials include mortars, brick and tile grouts, machinery grouts, and monolithic surfacings. These materials shall be based on resin, silicate, silica, or sulfur binders.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.

General Information

Status
Historical
Publication Date
31-Jul-2012
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.46 - Industrial Protective Coatings
Current Stage
Ref Project

Relations

Replaces
ASTM C307-03(2008) - Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic Surfacings
Effective Date
01-Aug-2012
Referred By
ASTM G210-13(2023) - Standard Practice for Operating the Severe Wastewater Analysis Testing Apparatus
Effective Date
01-Aug-2012
Referred By
ASTM C308-18(2023) - Standard Practice for Working, Initial Setting, and Service Strength Setting Times of Chemical-Resistant Resin Mortars
Effective Date
01-Aug-2012
Referred By
ASTM C722-18(2023) - Standard Specification for Chemical-Resistant Monolithic Floor Surfacings
Effective Date
01-Aug-2012

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ASTM C307-03(2012) - Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic SurfacingsASTM C307-03(2012) - Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic Surfacings
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ASTM C307-03(2012) - Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic Surfacings
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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: C307 − 03 (Reapproved 2012)
Standard Test Method for
Tensile Strength of Chemical-Resistant Mortar, Grouts, and
Monolithic Surfacings
This standard is issued under the fixed designation C307; 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 U.S. Department of Defense.
1. Scope in service; however, such data are useful for purposes of
determining the rate of cure and other properties.
1.1 This test method covers the determination of tensile
strength of cured chemical-resistant materials in the form of 4.2 This test method is not recommended for mortars,
molded briquets. These materials include mortars, brick and grouts, and monolithic surfacings containing aggregate greater
tile grouts, machinery grouts, and monolithic surfacings.These than ⁄4 in.
materials shall be based on resin, silicate, silica, or sulfur
5. Apparatus
binders.
5.1 Weighing Equipment, shall be capable of weighing
1.2 The values stated in inch-pound units are to be regarded
materials or specimens to 60.3 % accuracy.
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
5.2 Specimen Molds—The molds for making briquet test
and are not considered standard.
specimens shall be sufficiently rigid to prevent deformation
during molding and shall be made of corrosion-resistant
1.3 This standard does not purport to address all of the
material.Gangmolds,whenused,shallbeofthetypeshownin
safety concerns, if any, associated with its use. It is the
Fig. 1. The dimensions of the briquet molds shall be the width
responsibility of the user of this standard to establish appro-
of the mold, between inside faces, at waist line of briquet, 1 in.
priate safety and health practices and determine the applica-
The width and the depth of the briquet mold at the waist line
bility of regulatory limitations prior to use.
shall be 1 in. 6 0.02in. (25mm 6 0.5mm). The molds shall
2. Referenced Documents
conform to the dimensional requirements shown in Fig. 2.
2.1 ASTM Standards:
5.3 Equipment for Mixing Materials, shall consist of a
C904 Terminology Relating to Chemical-Resistant Nonme-
container of suitable size, preferably corrosion resistant, and a
tallic Materials
strong, sturdy spatula, trowel, or mechanical mixer.
E4 Practices for Force Verification of Testing Machines
5.4 The following additional equipment is required for
sulfur mortars.
3. Terminology
5.4.1 Melting Chamber, of sufficient volume and heat ca-
3.1 Definitions:
pacity to melt the mortar sample and maintain the temperature
3.1.1 For definitions of terms used in this test method, see
of the melt between 260 and 290°F (127 and 143°C).
Terminology C904.
5.4.2 Laboratory Mixer, of such a type and speed to be
capable of lifting the aggregate without beating air into the
4. Significance and Use
melt.
4.1 It is recognized that chemical-resistant mortars, grouts,
5.4.3 Ladle, of sufficient capacity to completely pour one
and monolithic surfacings are not usually under tension when
briquet.
5.5 Testing Machine, the testing machine shall be of any
This test method is under the jurisdiction of ASTM Committee D01 on Paint
type sufficient to provide the required load and the rate of
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.46 on Industrial Protective Coatings.
Current edition approved Aug. 1, 2012. Published September 2012. Originally
published in 1953. Last previous edition approved in 2008 as C307 – 03 (2008). The sole source of supply of the Forney capping compound melting chamber,
DOI: 10.1520/C0307-03R12. Model LA-0130, known to the committee at this time is Forney Industries, Inc.,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 1565 Broadway Ave., Hermitage, PA 16148. If you are aware of alternative
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM suppliers, please provide this information to ASTM Headquarters. Your comments
Standards volume information, refer to the standard’s Document Summary page on will receive careful consideration at a meeting of the responsible technical
the ASTM website. committee, which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C307 − 03 (2012)
crosshead movement prescribed. It shall have been verified to
have an accuracy of 1.0 % or better within 12 months of the
time of use in accordance with Practices E4.
5.6 Tension Clips, for holding the tension test specimens,
FIG. 1 Briquet Gang Mold shall be in accordance with Fig. 3.
6. Test Specimens
6.1 All specimens for a single determination shall be made
from a single mix containing sufficient amounts of the com-
ponents in the proportions and in the manner specified by the
manufacturer of the materials. If the proportions so specified
are by volume, the constituents shall be weighed and the
corresponding proportions by weight shall be reported.
6.1.1 Number of Specimens—Prepare a minimum of six
briquet specimens for each material tested.
6.2 Temperature:
6.2.1 Resin, Silicate, and Silica Materials—The standard
temperature of the materials, molds apparatus, and the ambient
temperature of the mixing area shall be 73 6 4°F (23 6 2°C).
Record the actual temperature.
6.2.2 Sulfur Mortars—The material shall be maintained at
275 6 15°F (135 6 8°C). The temperature of the molds and
the ambient temperature of the mixing area shall be 73 6 4°F
(23 6 2°C). Record the actual temperature.
6.3 Molding Test Specimens:
FIG. 2 Briquet Specimens for
...

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