89229 ⎘
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone; Coating or impregnating e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements, characterised by the method of application; Electrolytic or electrophoretic processes, e.g. electrochemical re-alkalisation of reinforced concrete Electrochemical re-alcalisation