Print Email Facebook Twitter PROCEDURE FOR LOCALLY RAISING THE GROUND ARTIFICIALLY Title PROCEDURE FOR LOCALLY RAISING THE GROUND ARTIFICIALLY Author Schuiling, R.D. Date 1991 Abstract Abstract of corresponding document: WO 8909251 (A1) The present invention relates to a procedure for locally raising the ground artificially, wherein an equivalent quantity of the calcite (CaCO3) present in the porous underground limestone formations is converted into gypsum (CaSO4.2H2O) by injecting a quantity of sulphuric acid. Preferably a 20 to 25 % strength by weight sulphuric acid is used. To reference this document use: http://resolver.tudelft.nl/uuid:f45d3ffa-f87d-4fbd-8241-c945712bab27 Publisher European Patent Office Source WO8909251 (A1) Part of collection Institutional Repository Document type patent Rights (c) Delft University of Technology Files PDF WO8909251A1.pdf 371.91 KB Close viewer /islandora/object/uuid:f45d3ffa-f87d-4fbd-8241-c945712bab27/datastream/OBJ/view