2.3 Fastening substrates
The main differences are the fastening substrates
and load classes.g. brick
Hollow blocks with dense
structure, e.g. lightweight
concrete, expanded clay,
pumice
Plates with porous struc-
ture, e. While most anchors are suitable
and approved for use concrete, there are also spe-
cial solutions for various masonry types, even for hol-
low brick porous concrete. hollow blocks
made lightweight con-
crete
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Chapter The external lightning protection system
. plasterboard
Wall materials
Full brick with dense struc-
ture, e.g.
Materials
Concrete Light construction materials
Normal concrete,
e.g. the metal
spreading anchors develop lateral forces when sub-
jected loads, break-outs may occur when the pre-
scribed spacing distances are not complied with.2. 20/25
Lightweight concrete,
e. 20/22
Plates and panels,
e. With metal spreading
anchors, certain spacing distances must guaran-
teed, e. By
contrast, bolt ties and injection systems can placed
very close the edge, they not create any lat-
eral forces.g. hollow brick
Full bricks with porous
structure, e. the edge component.g.g.g.
For walls and ceilings old, existing buildings, so-
called extraction experiments are often required, or-
der determine the resistance and load capacity of
the construction
