Rectangular pipes – multi-use square elements

ITEM OF CONTRACT SPECIFICATIONS

SQUARE CONDUITS IN VIBRATION COMPRESSED REINFORCED CONCRETE ,RECTANGULAR SECTION mm …….x……. WITH MINIMUM THICKNESS OF WALLS mm ……. AND LENGTH mm ……. ; THE REINFORCEMENT OF THE SINGLE ELEMENTS MUST BE CALCULATED FOR A USE ……. AND MUST BE SUITED TO SUPPORTING LOADS OF CATEGORY WITH UPPER COVEING OF THE STRUCTURE VARYING FROM mm ……. TO mm …….; THE JOINING MUST BE DESIGNED FOR THE INSERTION OF A NEOPRENE GASKET FOR WATERPROOFING; FOR A CORRECT INSTALLATION AND TO AVOID SHIFTING PHENOMENA THE SQUARE CONDUIT MUST BE SUPPORTED ON A CONTINUOUS BASE OF FINE GRAVEL DOSAGE  200 KG/M3; FOR THE ASSEMBLY,  A HYDRAULIC DEVICE MUST BE USED; DURING THE SUPPLY PHASE, THE INSTALLER MUST PROVIDE THE  BASIC STRUCTURAL CALCULATIONS ACCORDING TO THE CONDITIONS REQUESTED WITH THE ATTACHED FORM, AND THE POSITIONING OF REINFORCEMENT USED.