Method of manufacturing molded parts based on cement or concrete, using missed molds, which are incorporated to the piece as a protective packaging. (Machine-translation by Google Translate, not legally binding)

摘要

"METHOD FOR MANUFACTURING MOLDED PARTS BASED ON CEMENT OR CONCRETE, USING LOST MOLDS, WHICH ARE INCORPORATED INTO THE PIECE AS A PROTECTIVE PACKAGING", characterized by the fact that expanded polystyrene is preferably used to obtain the lost mold, or other multicellular and lightweight plastic materials, with which said mold is formed by pressing the dough, until achieving its solidification and hardening, by practicing, by countermould, the recesses and projections to be determined, in the piece of cement or concrete that it is desired to mold the reliefs and holes corresponding to any throat, rib or ornament that said piece has to present, the disadvantages of the demolding of certain parts should not be taken into account, since the mold, once it has performed its primary function, is incorporated to the piece as a coating to protect it during the various manipulations, until occupying the corresponding place n the work, at which time the lost mold is broken, without worries of demoulding. (Machine-translation by Google Translate, not legally binding)