ChambersEcol-Unicon concrete chambers is a group of precast elements of circular cross-section and internal diameter
EU chambers with a reducing cone
EU chambers with a cover slab(Dw) 1000÷3000 mm. Concrete and reinforced concrete elements of the chamber are made of vibropressed concrete (according to PN-EN 206). All elements can be made according to individual Client's needs e.g. using elements of lower absorbability with bevels or offsets (water buoyancy footing lips). Precast elements are joined using rubber seals, water-resistant cement mortar or epoxy resin. Elements of diameters (Dw) 2000÷3000 mm can additionally be joined with bentonite sealant. Every chamber, regardless of its type, consists of a flat base element, an extension element and a cover element (Fig. 2). It can also be fitted in adjustment rings, a manhole (according to PN-EN 124) and access steps (according to PN-EN 13101). The chambers can also be fitted with an inlet chamber base of measurements suitable to the direction and diameter of pipes connected to it. For inlet-outlet connections leak-tight connections are used. Chambers that are set up to 10 m below ground level does not need special foundation and does not need static calculations. In case of high level of ground waters anti-buoyancy bottom should be used. In case of load bearing ground the chambers should be set on 15 cm thick C8/10 class concrete substructure or on a well-compacted layer of gravel (e.g. sand or sand and gravel mix).