Tensile adhesion strength of Tile Adhesive BS EN 12004 :
Test conditions :-
• (23 ± 2) °C and (50 ± 5) % relative humidity
• Test materials :-
• Condition all test materials to be
tested for at least 24 h under standard conditions.
• Type of tile: type V1: dry pressed
ceramic tile with a water absorption ≤
0,5 % by mass, with facial dimensions of (50 ± 1) mm × (50 ± 1) mm.
• Apparatus
• A mass capable of exerting a force
of (20 ± 0,05) N, with a cross sectional area of less than 50 mm × 50 mm.
• Square metallic plates, with
dimensions of (50 ± 1) mm × (50 ± 1) mm and a minimum thickness of 10 mm, with
a suitable fitting for connection to the test machine.
• A test machine for direct pull
tensile force test and with suitable capacity and sensitivity for the test. The
machine shall be capable of applying the load to the pull-head plate at the
rate of (250 ± 50) N/s through a suitable fitting that does not exert any
bending force.
• An air-circulating oven capable of
controlling the temperature to within ± 3 °C.
• A notched trowel having 6 mm × 6 mm
notches at 12 mm centers.
• Mixing of the adhesive
• Pour the liquid into the pan.
scatter the dry powder over the liquid; mix for 30 s; take out the mixing
paddle; scrape down the paddle and pan within 1 min; replace the paddle and mix for 1 min.
• Procedure of testing :-
After 27 days storage under standard conditions bond the pull-head plates to
the tiles with a suitably high strength adhesive (e.g. epoxide).
• After a further 24 h storage under
standard conditions determine the tensile adhesion strength of the adhesive by
applying a force at a constant rate of (250 + 50) N/s.
• If fast-setting properties of
adhesives are to be tested, also determine the tensile adhesion strength 6 h
after bonding, under standard conditions (see Clause 4).
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