ASTM C1404/C1404M-98

Standard Test Method for Bond Strength of Adhesive Systems Used with Concrete as Measured by Direct Tension

SCOPE
1.1 This test method covers the laboratory determination of the bond strength of adhesive systems used to adhere freshly mixed mortar to hardened portland-cement concrete.
1.2 The values stated, in either SI units or other units shall be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore each system must be used independently of the other, without combining values in any way.
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: 09-Sep-1998
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.25 - Organic Materials for Bonding

Relations

• Replaced By: ASTM C1404/C1404M-98(2003) - Standard Test Method for Bond Strength of Adhesive Systems Used with Concrete as Measured by Direct Tension (Withdrawn 2010)
• Effective Date: 10-Sep-1998
• Referred By: ASTM C1439-19 - Standard Test Methods for Evaluating Latex and Powder Polymer Modifiers for use in Hydraulic Cement Concrete and Mortar
• Effective Date: 10-Sep-1998

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.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.
Designation: C 1404/C 1404M – 98
Standard Test Method for
Bond Strength of Adhesive Systems Used With Concrete as
Measured by Direct Tension
This standard is issued under the fixed designation C 1404/C 1404M; 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.
1. Scope C 881 Specification for Epoxy-Resin-Base Bonding Sys-
tems for Concrete
1.1 This test method covers the laboratory determination of
C 670 Practice for Preparing Precision Statements for Test
the bond strength of adhesive systems used to adhere freshly
Methods for Construction Materials
mixed mortar to hardened portland-cement concrete.
1.2 The values stated, in either SI units or other units shall
3. Summary of Test Method
be regarded separately as standard. The values stated in each
3.1 Each specimen consists of a base and overlay, bonded
system may not be exact equivalents; therefore each system
together with the adhesive being tested. The base is half of a
must be used independently of the other, without combining
3-in. [75-mm] by 6-in. [150-mm] hardened-concrete cylinder
values in any way.
mounted inside of a steel-pipe nipple. The overlay consists of
1.3 This standard does not purport to address all of the
freshly mixed mortar placed in a steel-pipe nipple positioned
safety concerns, if any, associated with its use. It is the
on top of the base.
responsibility of the user of this standard to establish appro-
3.2 The prepared surface of the base is coated with the
priate safety and health practices and determine the applica-
adhesive, onto which freshly mixed mortar is applied. After
bility of regulatory limitations prior to use.
curing, the assembly is pulled in tension to measure the bond
2. Referenced Documents strength of the adhesive. The tensile strength is calculated, and
the location of failure is determined visually.
2.1 ASTM Standards:
A 333/A 333M Specification for Seamless and Welded
4. Significance and Use
Steel Pipe for Low-Temperature Service
3 4.1 The bonding properties of adhesives are important for
C 33 Specification for Concrete Aggregates
concrete repair applications. This test method provides a means
C 39 Test Method for Compressive Strength of Cylindrical
3 to measure the adhesive characteristics of materials used to
Concrete Specimens
bond freshly mixed mortar to hardened concrete.
C 42 Test Method for Obtaining and Testing Drilled Cores
3 4.2 In addition to providing information on bond strength,
and Sawed Beams of Concrete
the location of failure is determined visually and is thus
C 109 Test Method for Compressive Strength of Hydraulic
4 instructive regarding the weakest element in the composite
Cement Mortars using 2-in. [50 mm] Cube Specimens
3 tested.
C 150 Specification for Portland Cement
4.3 The bond strength that is measured is limited by the
C 171 Specification for Sheet Materials for Curing Con-
3 tensile strength of the base concrete and mortar. While an
crete
attempt has been made to choose materials that are strong
C 192 Practice for Making and Curing Concrete Specimens
3 enough to force a bond failure, there may be cases where
in the Laboratory
failure occurs in concrete or mortar. In these situations, the
C 305 Practice for Mechanical Mixing of Hydraulic Cement
4 actual bond strength exceeds the measured result.
Pastes and Mortars of Plastic Consistency
C 494 Specification for Chemical Admixtures for Concrete
5. Apparatus
5.1 Testing Machine—The testing machine shall be of the
1 hydraulic or screw-type and capable of measuring tensile loads
This test method is under the jurisdiction of ASTM Committee C-9 on Concrete
up to 5000 lbf [22 kN] in increments of 45 lbf [200 N] at rates
and Concrete Aggregates, and is the direct responsibility of Subcommittee C09.25
on Organic Materials for Bonding, Patching, and Decking.
described in 9.3.
Current edition approved Sept. 10, 1998. Published April 1999.
5.2 Steel-Pipe Nipples—The steel-pipe nipples shall con-
Annual Book of ASTM Standards, Vol 01.01.
3 form to Specification A 333/A 333M, be nominally 3 in. [75
Annual Book of ASTM Standards, Vol 04.02.
Annual Book of ASTM Standards, Vol 04.01. mm] in diameter by 3 in. [75 mm] long Schedule 40, threaded;
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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.
C 1404/C 1404M
two per specimen. The inside surface of the steel-pipe nipples 5.7 Mixer, Bowl, and Paddle—A mechanical mortar mixer,
shall be clean and free of oil or other contaminants that could as described in Practice C 305.
inhibit bond. The inside surface shall be sandblasted to gray
5.8 Small Tools—Tools and items such as a straightedge,
metal condition.
scoops, rubber gloves, and metal mixing bowls.
5.3 Steel-Pipe Cap—Two steel-pipe caps nominally 3 in.
5.9 Tamping Rod—The tamping rod shall be a round steel
[75 mm] in diameter, and threaded to fit the steel-pipe nipple 3
rod, ⁄8 in. [10 mm] in diameter, conforming to Practice C 192.
molds. Each cap shall be fitted with a steel rod or eye bolt with
5.10 Saw, as described in Test Method C 42, with diamond
at least one universal joint for connection to the testing
saw blade and plain water as the only cutting fluid.
machine. The assembly shall have a tensile capacity of at least
5.11 Cylinder Molds—The cylinder molds shall be 3-in.
5000 lbf [22 kN]. See Fig. 1 for details of preparation.
[75-mm] diameter by 6-in. [150-mm] long, as described in
5.4 Base Assembly—Concrete cylinder and steel pipe
Practice C 192.
nipple, prepared according to Section 7; one for each specimen.
5.5 O-rings—Rubber, 2- ⁄8 in. [73 mm] inside diameter3
6. Materials
1 3
3- ⁄4 in. [83 mm] outside diameter; ⁄16 in. [5 mm] thick; one for
each specimen. 6.1 Cement—The cement shall be portland cement meeting
5.6 Concrete Mixer—As described in Practice C 192. the requirements of Specification C 150.
FIG. 1 Pipe Cap Detail
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.
C 1404/C 1404M
6.2 Aggregate—The aggregate shall conform to Specifica- the abrasive paper to remove any extraneous material that
tion C 33; the coarse aggregate shall conform to Size No. 7. could inhibit bond. Wipe this prepared surface with a damp
6.3 Mortar—Prepare and test the mortar in accordance with cloth to remove any dust or powder that may have accumu-
Test Method C 109, and each specimen tested shall have a lated.
compressive strength of at least 4500 psi [31 MPa] at seven
8.2 Place a 3 in. [75 mm] long nipple on this assembly and
days age.
secure it to the bottom nipple with tape around the outside of
6.4 Concrete—The concrete shall be non air-entrained,
both nipples.
prepared and cured in accordance with Practice C 192, tested
8.3 Apply the adhesive being tested to the prepared surface
according to Test Method C 39, and each specimen tested shall
of the concrete base using the manufacturer’s recommenda-
have a compressive strength of at least 6000 psi [41 MPa] at 28
tions for thickness and procedure,
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