(J14;Strength4) Measuring bonding strength between two layers of material
(Made in USA)
(FR-J/S301) YÜZEYDE KULLANILAN ONARIM ve YÜZEY MALZEMELERİNİN (HARÇ, EPOX, YAPI KİMYASALLARI, LAMİNANT, vs...) YÜZEYLE KAYNAŞMASININ-TUTMASININ DAYANIMI TEST CİHAZI (BETON ve METAL YÜZEYE)
JAMES PULL off ADHESION / BOND TESTER Measures bonding strength between two layers of material
The James Pull Off Adhesion/Bond Tester measures the adhesion of coatings to concrete and metals.
Measures bonding strength between two layers of material.
The James Pull Off Adhesion/Bond Tester measures the pull force used to pull a 2” or 3” disc away from the material being tested. This pressure is displayed on a precision gauge and can be related directly to the strength of the adhesion to the surface being tested.
The James Pull Off Adhesion/Bond Tester has been successfully used to verify the quality of existing materials, determine the adhesion strength of shotcrete, epoxies and other repair materials.
Features & Benefits:
Accurate bond strength of repair mortars, epoxy resin, laminates, overlays, and other coatings.
Calibrated gauge with maximum load indicator.
Viscose damping mechanism to protect against sudden load release.
Adjustable alignment plate with built in leveling facility.
Compact design.
Easy to use.
Conforms to BS-1881-207, ASTM: C-4541 and ACI:503-30.
Technical Adequate 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 007 James Bond Tester™ involves bonding a circular steel disc to the surface by means of an epoxy resin adhesive. A controlled tensile force is then applied to the disc and failure will occur at the weakest point: either in the host material, or in the bond between overlay and host material. Knowing the surface area of the disc and the force applied at failure, the tensile strength of the host material or bond can be calculated.
Method
Using a coring bit for either 3 inch or 2 inch cores, make a notch or kerf in the material to be tested, drilling through the bond interface.This exactly defines the area to be tested.
Using a standard quick epoxy adhesive (not supplied with the kit) attach a steel disc on the defined test area.
Set the bond test alignment plate over the defined test area and level the plate by adjusting the legs.
Attach the Puller and turn the hand operated ratchet wrench until failure occurs.
The steel discs can be reused and cleaned using a suitable solvent.
Equipment The 007 James Bond Test Kit consists of:
Hand operated Puller.
0--3300 lbs force (15 KN) calibrated gauge with maximum load indicator and viscose damping to protect against sudden load release.
Adjustable alignment plate with built in leveling facility.
Pull bolt with coupling.
10 three inch (75 mm) diameter steel discs.
10 two inch (50 mm) diameter steel discs.
Carrying case.
Specifications
P-C-7256
James Bond Test System
P-054-10987-006
75mm (3inch) Diameter Steel Discs
P-054-10987-007
50mm (2inch) Diameter Steel Discs
P-089-10987-003
5 KN Guage
P-089-10987-004
20 KN Guage
Frequently Asked Questions
Q.
Bond disc will not stick to surface
A.
You may have not mixed epoxy fully and it won't dry.
Q.
Disc pops off surface at a low strength
A.
Surface may not have been cleaned properly. A good indication of this would be little bits of concrete stuck to the bottom of the disc. 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?
A.
Yes 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 certain strength.
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 disc?
A.
You need just a thin layer, about 3 for 4 sheets of paper.
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( FORE CO. reserves the right to alter specifications to equipments to any time. )
(J14;Strength4) Measuring bonding strength between two layers of material
