for tetning of cracks and kaviteter in various kinds of construction works, as works in rock, concrete, masonry, three, intended still

摘要

A method for sealing cracks and cavities in different kinds of building constructions, such as building constructions in rock, concrete, brickwork and timber is disclosed, according to which holes communicating with the cracks or cavities are driven into the building construction. These holes are sealed outwardly and put in connection with a vacuum source so that the water present in the cracks or cavities is sucked by the negative pressure in the direction towards the holes. Crack sealing material e.g. cement, epoxy tar, setting plastic, silicate based sealant or the like, is then applied to the cracks or cavities and is, due to the negative pressure prevailing in them, drawn into its sealing positions in the building construction, where it is allowed to harden or set under the influence of the negative pressure.