Technical Booklet E Fire Safety·Page 125·4.48
Fire-stopping materials for compartment penetrations
Lists acceptable materials for fire-stopping around pipes and ducts penetrating compartment walls and floors, including cement mortar, gypsum plaster, vermiculite/perlite mixes, glass fibre products, and intumescent mastics.
Acceptable fire-stopping materials are:
(i) cement mortar;
(ii) gypsum based plaster;
(iii) cement or gypsum based vermiculite/perlite mixes;
(iv) glass fibre, crushed rock, blast furnace slag or ceramic based products (with or without resin binders); and
(v) intumescent mastics.
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