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