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21 IITGN-UL/Façade                                                                                                                                                           22 IITGN-UL/Façade



         (i) Glass

         The common material under performance evaluation for
         all tests is glass. Test 1 involved local market glass whereas                                                                                                                               (ii) Aluminium Composite Panel (ACP)
         tests 2, 3 and 4 involved standard glass. Standard glass was
         Saint Gobain toughened glass of size 1200 x 400mm and 6                                                                                                                              Aluminium composite panel is composed of

         mm thickness fixed to the aluminium cladding framework                                                                                                                               polyethylene core laminated and sandwiched
         through pressure  tapes and silicon sealant as binder gel.                                                                                                                           between two fine aluminium sheets. ALU DÉCOR AL
         Technical specifications of glass under  testing are as                                                                                                                              45 ACP sheets are used in combination with local
         follows:                                                                                                   58 x 64mm. Aluminium Section Frame ( Center)                              glass  for  test  1 whereas  ACP sheets  are combined

                                                                                                                                                                                                      with Saint gobain toughened glass for test 2.
                                                                                                                                    Fire Stop Material
         •  Thermal shock resistance: Upto 250°C                                                                                                                                              ACP sheets are of size of glass panels (1200mm x
         •  Mechanical strength: four to five times stronger                                                                                                                                  400mm) with thickness of 4mm and is fixed to the
                                                                                                                                                                                              aluminium framework in a similar manner as glass
             than annealed glass                                                     6mm Glass                                        Deck Slab                                               panels.Figure 11 shows  the aluminium framing

         •   Tensile strength: 65 MPa                                                                                                                                                         layout for fixing ACP sheets and glass panels. 60%
         •  Bending strength: 120-200 N/mm2                                                                        150                                                                        glass and 40% ACP sheets comprises the whole test
         •  Surface compression: >95 MPa                                                                                                                                                                                                       assembly.
         •  Design stress for architectural purposes: 50 MPa                                            Silicon                                                                               Core material for ACP sheets under test consists of
         • Fragmentation: Small round crystals                                                          Hollow Space                                                                          virgin Low Density Polyethylene (LDPE). Panel

         •  Conducive for processing                                                              6MM X 6MM Pressure Tap                                                                      weight is 5.5 kg/m2 and  thermal expansion
         •  Cannot be cut after toughening                                                                                                                                                    coefficient is 24 x 10-6/°C. Other detailed technical
                                                                                     Figure 10: Typical installation layout of a glass panel to aluminium framework
                                                                                                                                                                                              specifications of ALU DÉCOR AL 45 can be accessed

         Glass panels are fixed to aluminium cladding framework                                                                                                                               through       the    link     ALU     DECOR       AL     45              Figure 11: Aluminium framing layout for glass and ACP assembly
         made of rectangular  tube of size 58mm x 64mm as                                                                                                                                     (http://www.aludecor.com/sites/default/files/Tec
         horizontal and vertical center glazing support and 38mm x                                                                                                                            hnical%20Data%20Sheet%20-%20AL%2045-1.pdf)

         64mm as fixed size support. Glass panels are fixed with
         aluminium framework  through silicon structural glazing
         sealant (Dow Corning brand) and through 6mm pressure
         tape (Kotadiya brand). Figure 10shows typical installation

         layout of a glass panel to aluminium framework.
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