double walled underground storer for groundwater hazardous liquids, such as far - warmingsolie, and a method for the manufacture thereof -.

摘要

Underground storage tank for fluids which has an inner and an outer wall of thermosetting reinforced plastics material and a leak monitoring space between these walls, said space comprising a continuous air and liquid permeable synthetic concrete mixture of a thermosetting resin and compression resistant filling material having no small components, the concrete forming the static load bearing layer of the tank, the dosing of the synthetic resin being such that a sufficient wetting of the surfaces of the filling material particles is achieved for the bonding of the filling material particles with one another while securing the continuous leak monitoring space, and the synthetic resin concrete layer being firmly bonded to the thermosetting plastic of the inner wall and the outer so as to form a homogeneous unit.