ASTM C307-03(2008)

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

SIGNIFICANCE AND USE
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.
This test method is not recommended for mortars, grouts, and monolithic surfacings containing aggregate greater than ¼ 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-May-2008
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.46 - Industrial Protective Coatings

Relations

• Replaces: ASTM C307-03 - Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic Surfacings
• Effective Date: 01-Jun-2008
• Replaced By: ASTM C307-03(2012) - Standard Test Method for Tensile Strength of Chemical-Resistant Mortar, Grouts, and Monolithic Surfacings
• 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-Jun-2008
• Referred By: ASTM G210-13(2023) - Standard Practice for Operating the Severe Wastewater Analysis Testing Apparatus
• Effective Date: 01-Jun-2008
• Referred By: ASTM C722-18(2023) - Standard Specification for Chemical-Resistant Monolithic Floor Surfacings
• Effective Date: 01-Jun-2008

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C307 − 03(Reapproved 2008)
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 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 C03 on
type sufficient to provide the required load and the rate of
Chemical-Resistant Nonmetallic Materialsand is the direct responsibility of Sub-
committee C03.01 on Mortars and Carbon Brick.
Current edition approved June 1, 2008. Published July 2008. Originally
published in 1953. Last previous edition approved in 2003 as C307 – 03. DOI: The sole source of supply of the Forney capping compound melting chamber,
10.1520/C0307-03R08. 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 [e-mail]. 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 (2008)
6.3.2 Resin, Silicate, and Silica Materials—Mix a sufficient
amountofthecomponentsintheproportionsandinthemanner
specified by the manufacturer of the materials. Fill the molds
one-half full. Remove any entrapped air by using a cutting and
stabbing motion with a spatula or rounded-end rod. Fill the
FIG. 1 Briquet Gang Mold
remainder of the mold, working down into the previously
placed portion. Upon completion of the filling operations, the
tops of the specimens should extend slightly above the tops of
the molds. When the molds have been filled, strike off the
excess material so that it is even with the top of the mold.
Permit the material to remain in the mold until it has set
sufficiently to allow removal without danger of deformation or
breakage.
6.3.3 Silicate Materials—Some silicates may require cover-
ing during the curing period. After removal from the molds,
acid-treat the specimens, if required, in accordance with the
recommendations given by the manufacturer. No other treat-
ment shall be permitted. Record the method of treatment in the
report section under Conditioning Procedure.
6.3.4 Sulfur Mortars:
6.3.4.1 Assemble the mold in 6.3.1. However, cover the
waist of the mold with a small lubricated plate.
6.3.4
...

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:C307–99 Designation: C 307 – 03 (Reapproved 2008)
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.Anumber 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 Department of Defense.
1. Scope
1.1 This test method covers the determination of tensile strength of cured chemical-resistant materials in the form of molded
briquets.Thesematerialsincludemortars,brickandtilegrouts,machinerygrouts,andmonolithicsurfacings.Thesematerialsshall
be based on resin, silicate, silica, or sulfur binders.
1.2The values stated in inch-pound units are to be regarded as the standard.The values given in parentheses are for information
only.
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.
2. Referenced Documents
2.1 ASTM Standards:
C904 Terminology Relating to Chemical-Resistant Nonmetallic Materials
E4 Practices for Force Verification of Testing Machines
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, see Terminology C904.
4. 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 ⁄4
in.
5. Apparatus
5.1 Weighing Equipment, shall be capable of weighing materials or specimens to 60.3% accuracy.
5.2 Specimen Molds— The molds for making briquet test specimens shall be sufficiently rigid to prevent deformation during
molding and shall be made of corrosion-resistant material. Gang molds, when used, shall be of the type shown in Fig. 1. The
dimensions of the briquet molds shall be the width of the mold, between inside faces, at waist line of briquet, 1 in. (25 mm) with
permissible variations of 60.01 in. (60.25 mm); the thickness of the molds measured at the point of greatest thickness of either
side of the mold at the waist line, 1 in. with permissible variations of +0.004 in. (+0.10 mm) and −0.002 in. (−0.05 mm). The
briquet test specimens shall conform to the dimensional requirements shown in .The dimensions of the briquet molds shall be the
width of the mold, between inside faces, at waist line of briquet, 1 in. The width and the depth of the briquet mold at the waist
ThistestmethodisunderthejurisdictionofASTMCommitteeC-3onChemical-ResistantNonmetallicMaterialsandisthedirectresponsibilityofSubcommitteeC03.01
on Test Methods.
Current edition approved Oct. 10, 1999. Published December 1999. Originally published as C307–53T. Last previous edition C307–94.
ThistestmethodisunderthejurisdictionofASTMCommitteeC03onChemical-ResistantNonmetallicMaterialsandisthedirectresponsibilityofSubcommitteeC03.01
on Mortars and Carbon Brick.
Current edition approved June 1, 2008. Published July 2008. Originally published in 1953. Last previous edition approved in 2003 as C307–03.
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] Annual Book of ASTM Standards
, Vol 04.05.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C 307 – 03 (2008)
FIG. 1 Briquet Gang Mold
line shall be 1 in. 6 0.02in. (25mm 6 0.5mm). The molds shall conform to the dimensional requirements shown in Fig. 2.
5.3 Equipment for Mixing Materials , shall consist of a container of suitable size, preferably corrosion resistant, and a strong,
sturdy spatula, trowel, or mechanical mixer.
5.4 The following additional equipment is required for sulfur mortars.
5.4.1 Melting Chamber, of sufficient volume and heat capacity to melt the mortar sample and maintain the temperature of the
melt between 260 and 290°F (127 and 143°C).
5.4.2 Laboratory Mixer, of such a type and speed to be capable of lifting the aggregate without beating air into the melt.
5.4.3 Ladle, of sufficient capacity to completely pour one briquet.
5.5 Testing Machine, the testing machine shall be of any type sufficient to provide the required load and the rate of 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, 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 components
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 M
...