James Bond Test™ MK III
|James Bond Test™ MK III in
use on asphalt
||James Bond Test™ MK III in
use on Concrete
The James Bond Tester™
III or pull off adhesion test measures the bond strength
or tensile strength of concrete, asphalt, tile, concrete
or other overlay material by the direct tension or pull off method. By
pulling a 25mm steel disk attached to the material under the
- Measure the near surface strength
of a substrate in order to determine the substrates quality before
applying an overlay
- Determine the bond strength of a
repair or overlay material after it is applied to the substrate
- Determine the tensile strength of a
repair, overlay or adhesive after the material is applied to the surface
The James Bond Tester™ MK
III has been successfully used to
verify the quality of existing materials, determine the adhesion
strength of shotcrete, tile, epoxies, paint and other repair materials or coatings.
Each System comes with 10,
50mm 2 inch, ASTM Standard 1583 - 04 stainless steel
Customers who purchase this may
also need the T-M-170
Master for substrate moisture testing
strength of repair mortars, epoxy resins, laminates, overlays, and other coatings.
gauge with maximum load indicator and mechanical damping.
Ball Joint Design for rapid testing
as well as assuring direct tensile loading
alignment plate with built in leveling facility for both
vertical and horizontal pulls.
Easy to use.
4624 Paints and varnishes -- Pull-off test for
1015-12 Methods of test for mortar for masonry.
Determination of adhesive strength of hardened rendering and plastering
mortars on substrate
1348 Determination of Tensile Adhesion Strength
for Cementitious Adhesives
BS 1881 Part
207 Testing concrete. Recommendations for the
assessment of concrete strength by near-to-surface tests
1583 Standard Test Method for Tensile Strength of
Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete
Repair and Overlay Materials by Direct Tension (Pull-off Method)
ASTM D 4541 Standard Test Method for Pull-Off Strength
of Coatings Using Portable Adhesion Testers
503-30 Guide for the Application of Epoxy and
Latex Adhesives for Bonding Freshly Mixed and Hardened Concretes
Part 2 Testing
concrete; testing of hardened concrete (specimens taken in situ)
ASTM D 7234 Standard Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers
Tester™ MK III on Horizontal Concrete Deck
Tester™ MK III
on Vertical Concrete Repair
Tester™ MK III
direct tensile strength between two layers is important if repairs to
concrete structures or additional overlays on existing concrete are to
be structurally sound. The James Bond
Tester™ MK III involves bonding a circular steel
disk to the surface by means of an epoxy resin adhesive. A
controlled tensile force is then applied to the disk and failure will
occur at the weakest point: either in the host material, or in the bond between overlay and
Tester™ MK III Gauges
Tester™ MK III Showing Operator View while Testing
||James Bond Tester™ MK III gauge showing
maximum load indicator.
Easy to read gauges facilitate
performing the test. Two gauges are supplied
with each system. One for lower strength ranges, weaker
concrete, painted on overalys, etc. The other for higher
strength overlays, and concrete, mortar and asphalt repairs.
These guages feature
- Rubberized Rugged Outer Housing
- Quick Disconnect for Rapid Setup
- Maximum Load Indicator
- Mechanical Damping to Minimize Test
showing both horizontal and vertical levels
showing vertical level detail
alignment plate has two 360 degree bubble levels built in to facilitate
set up, allowing a direct tensile pull from the surface of the
material under test. The level can be easily adjusted by
utilizing the thumb screws attached to the adjustment legs.
Tester™ MK III Core Diagram
Indicating Failure at the Bond Between the Overlay and Substrate
Proper testing, it is first necessary to cut through the overly under
test directly to the substrate underrneath. In the case of
paints, thin coatings and overlays this can simply be accomplished with
a fine exacto knife or similar sharp tool. In the case of
concrete overlays, asphalts, tiles or similar repair mortars this can
only be accomplished by coring saw or drill.
Failure can typically occur in either one of three modes:
- in substrate
- at the substrate overlay interface
- in the overlay.
Tests can also be performed for verification purposes and not
failure. This will assure the engineer that both the overlay
and substrate have 'bonded' and further work or use can proceed.
Tester™ MK III Pull Disk Being Mounted in Puller Assembly
Disk Mounted in Bond Puller Assembly
James Bond Tester™ MK III
features a ball joint pull disk design. This assures that the
pulling force is always in tension even if the pull disk is uneven due
to irregularities in the overlay surface. This also creates a
rapid test setup as the ball end of the disk simply slide into the Bond
||Easy Thumb Screw
|150 mm / 6"
|Bond Test Puller Assembly
|60 mm / 2.5"
||210mm / 8.125"
||30 KN / 6675 lbf
|Bond Test Assembly (Alignment Plate
Attached to Bond Test Puller Assembly)
|240 mm / 9.375"
||3010 mm / 12.5"
||5 Kg / 11 lbs.
|James Bond Tester™ MK III
|410mm / 16"
||508mm / 20"
||205mm / 8"
||14 Kg / 31 lbs.
|James Bond Test™ MK
III Complete System and Carry Case
Bond Test™ MK III consists
Q. Bond disk will
not stick to surface
A. You may have not mixed epoxy fully
and it won't dry.
Q. disk pops off
at a low strength
may not have been cleaned properly. A good indication of this would be
little bits of concrete stuck to the bottom of the disk. You may also
not have a level surface.
Q. When doing a
test to check bonding strength on a roadway, do you have to take the
test to failure?
and no. Make sure you follow the specs for each job you do,
some may want you to take it failure, while others may want you to just
take it to a
Q. When I crank the
handle down, the gauge does not move.
A. Chances are you need to fill the
puller with oil.
Q. How much epoxy
do I put on the bond disk?
need just a thin layer, about 3 for 4 sheets of paper.