Construction element for walls and wall lining and production method of the element

Abstract

Construction element for walls and wall lining comprising at least one layer of lining material ( 11 ) and one layer of lightened natural lime ( 12 ) attached to the lining material ( 11 ) by drying to form a single body.

1 . Construction element for walls and for wall lining, comprising at least one layer of lining material ( 11 ) and one light inner layer attached to the lining material ( 11 ) by drying to form a single body, wherein said inner layer is lightened natural lime ( 12 ). 
     
     
         2 . Element according to  claim 1 , wherein said layer of lining material ( 11 ) comprises a thin slab of sandstone having a thickness of between a few tenths of a millimetre and a few millimetres. 
     
     
         3 . Element according to  claim 2 , wherein said thin slab is obtained by tearing. 
     
     
         4 . Element according to  claim 1 , wherein said lining material is tufa (limestone) having a thickness greater than 3-4 mm. 
     
     
         5 . Element according to  claim 1 , wherein said lining material is a ceramic tile or the like. 
     
     
         6 . Element according to  claim 1 , wherein a fixative is interposed between said layer of lining ( 11 ) and said layer of lightened natural lime ( 12 ). 
     
     
         7 . Element according to  claim 1 , wherein said layer of lightened natural lime ( 12 ) has a thickness greater than 1 cm. 
     
     
         8 . Curtain wall element comprising a first layer of lining material ( 11 ) and a second layer of lining material ( 11 ′) with at least one layer of lightened natural lime ( 12 ) interposed and dried to form a sandwich. 
     
     
         9 . Production method of a construction element for walls, comprising at least one layer of lining material ( 11 ) and one light inner layer attached to the lining material ( 11 ) by drying to form a single body, wherein said inner layer is lightened natural lime ( 12 ), the production method comprising at least the following steps:
 preparing a layer of lining ( 11 ),   arranging said layer of lining ( 11 ) on a horizontal plane,   spreading a layer of lightened natural lime ( 12 ),   drying said layer of lightened natural lime ( 12 ).   
     
     
         10 . Method according to  claim 9 , further comprising the step of interposing at least one reinforcing mesh ( 13 ) of the thickness of the layer of lime ( 12 ) and/or of preparing a fixative on the layer of lining ( 11 ), before spreading the layer of lime ( 12 ). 
     
     
         11 . Method according to  claim 9 , further comprising the following steps after drying:
 turning over the element obtained,   spreading a further layer of lightened natural lime ( 12 ′),   drying said further layer of lightened natural lime ( 12 ′)   cutting the element obtained perpendicularly to the thickness (S) of the element at a respective median part (r) of the layer of lining ( 11 ).