E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
E04H7/22—Containers for fluent solids, e.g. silos, bunkers; Supports therefor
E04H7/24—Constructions, with or without perforated walls, depending on the use of specified materials
E04H7/26—Constructions, with or without perforated walls, depending on the use of specified materials mainly of concrete, e.g. reinforced concrete or other stone-like materials
E04H7/28—Constructions, with or without perforated walls, depending on the use of specified materials mainly of concrete, e.g. reinforced concrete or other stone-like materials composed of special building elements