methods & materials panel presentation
DESCRIPTION
Methods & Materials panel presentation by Kelly Henry, LafargeHolcim - Facades+ Chicago 2015 conferenceTRANSCRIPT
Ultra High Performance Concrete
2
Characteristics
Compressive Strength 25,000 to 30,000 psi
Flexural Strength up to 6,000 psi
Direct Tension up to 1,450 psi
Ductility Greater capacity to deform and support flexural and tensile loads, even after initial cracking.
Abrasion Resistance Similar to natural rock
Impermeability Almost no carbonation or penetration of chlorides.
Steel
Pre-Stressed Reinforced Concrete
Sand Cement Quartz
Silica Fume Fibers (PVA or Steel)
COMPACT GRADATION
UHPC – Project Typology
3
§ Infrastructure § Architecture
§ Repair & Protection
- Facades § Flat § 3D
- Screens § Brise Soleil § Louvers
- Structural § Roofs § Columns § Mullions § Curtain Wall
MUCEM
10
Perforated Brise Soleil, Columns, Pedestrian Bridge
• 384 UHPC panels that cover a total area of 15,000m2 (49,213ft2).
• Each panel is 18 m2 [194 ft2] or 6m (19.6 ft) x 3m (9.8 ft)
• 7cm (2.7 in) thickness for the roof panels and 10 cm (3.9 in) thickness for wall panels
Dumbo Townhomes
12
Louvers
• 28 UHPC panels that cover a total area of 8,650 ft2.
• Each panel is 18 ft x 11 ft • Ribs 10 in • Back pan ¾ in
• Ribs taper from 4 in to 1 ¼ in thick
New Innovation - 3D Spray Facade
14
Barrier System
• Spray UHPC
• Confidential Pilot Project
• Utilizes integral ribs instead of secondary steel support