Joint sealing systems in SFH facilities

Joint sealing systems, e.g. sealing strips, sealing sheets, compression profiles, extruded profiles, sealing tapes, coated sealing sheets and sealing compounds, serve to make construction joints in sealing surfaces of storage, filling and handling facilities for substances hazardous to water (SFH facilities) liquid-tight. The sealing ensures that no substances hazardous to water can escape into nearby bodies of water. It thus makes an important contribution to facility-based water protection.

Fixings in SFH facilities

Fixings, such as bonded fasteners, injection fasteners and concrete screws, are also needed in SFH facilities to fasten fixtures to the  concrete sealing system. The fixings are composed of a fastening element (made of steel) and an injection mortar suitable for the concrete base material. Fixings that have been verified for resistance to various liquids hazardous to water and have been installed as specified in construction technique permits specifically addressing application in SFH facilities serve to ensure that no liquids hazardous to water can leak from the sealing system or sealing layer along the fixing or in the area of the fixing. They therefore also constitute an integral part of facility-based water protection.

Regulatory framework

Joint sealing systems and fixings in SFH facilities fall under the Ordinance on the determination of the suitability of construction products and construction techniques under water law by means of verifications in accordance with the Building Codes of the federal states (WasBauPVO) and under the Ordinance on facilities for handling substances hazardous to water (AwSV).

DIBt grants national technical approvals (abZ) and/or general construction technique permits (aBG) for these products and construction techniques, confirming that both the construction and the water law requirements have been met. The products and construction techniques are thus deemed to be suitable in accordance with Section 63 of the Water Resources Act (WHG).

Please also note the applicable provisions of the federal states following MVV TB, B 4.1 'Technical requirements for stationary systems and system parts in storage, filling and handling facilities for substances hazardous to water' as well as MVV TB, C 2.15.