Abstract: The invention refers to a procedure for laying the foundation of prefabricated plants (7) comprising such types as processing plants, industrial buildings, hospitals, hotels, etc., and for their removal, assembly and foundation building at the place of destination (10) ashore.Foundations (4) are made ashore or in a dry dock or on a barge, after which the processing plant is assembled. If the foundation is manufactured outside the barge (1), the plant (7) and/or foundation (4) can be moved to transport barges (1). Transport to the place of destination is carried out by means of sea-going transport barges (1). At the place of destination (9) the transport barges (1) are lowered onto an erection bed (2), and the plant (7) is launched over prefabricated sliding supports (5) from transport barge to the definitive erection site (10), which can advantageously be situated above the water level in the vicinity of the beach (9) or ashore.

Abstract: The invention refers to a process for the preparation of a hydrofobous building material containing a ballast material and a binder added or formed in connection with the manufacture. At least part of the ballast material is or is made water-repellant and is admixed with the rest of the ingredients of the building material, the amount of water-repellant ballast material and the grain size thereof being adapted so that the water-repellant characteristics of the building material is brought to an acceptable level while maintaining a sufficient wet vapor diffusion ability.