Bond Test – GERMANN | Test Smart

Bond Test

The BOND-TEST is used to conduct a pull-off test in accordance with ASTM C1583, “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).”

Publications

Description

A disc is bonded to a prepared testing surface and a partial core is cut around the disc. The disc is then pull off with the handheld hydraulic pulling machine. The pull-off force register by the electronic gauge is divided by the cross-sectional area of the partial core to obtain the pull-off strength.

Application

To evaluate the in-place bond strength between a repair overlay or patch and the substrate
To evaluate the in-place tensile strength of concrete or other materials
To evaluate the effect of surface preparation procedures on the tensile strength of the substrate before applying a repair material or overlay
To evaluate the adhesion of diverse materials like metal plates, tiles, thick coatings, FRP’s, etc., on concrete or masonry surfaces.

Specification

Battery powered handheld hydraulic pulling machine with robust steel-aluminum body
Digital display resolution = 0.1 kN
Maximum force: 100 kN (about 22 MPa for 75 mm discs)
Maximum stroke: 6 mm
Accuracy of measurements: < 2%
Operating conditions: -10 to 50°C, max. RH = 95%
Memory capacity: 512 measurements (peak-value, time and date of testing)
AMIGAS Software for PC communication and printout
Coefficient of variation of replicate test results for the pull-off test method = 8 – 10% for 75 mm discs and 14 – 16% for 50 mm discs

Standards

Part List

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