When frictional connection made, spreading ele-
ment set the anchor body ensures locking the
drill hole.2 Fastening principles
There are three types force transmission from the
anchor the substrate:
• Form fit
• Adhesive bond
• Friction bond
Anchors with form-fitting tap the substrate and support
themselves it.
TBS
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99
Chapter The external lightning protection system
. through sticking with special mortar. Examples are back cut internal thread an-
chors cavity ceiling ties.2.
Firmly bonded anchors join chemically the sub-
strate, e. When mounted with the planned torque, the
friction ensures the high load values.TBS
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2. Cleaning the drill holes very important for
these systems, order prevent slipping out due to
dust the drill hole. Ad-
hesive cartridges injection systems, which a
threaded rod mounted, are included these fasten-
ings. The anchor fits "tightly" into the com-
ponent.g. The threads the bolt ties
also work according this principle
