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Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
Panel solutions for new and existing tunnels
René van den BoschPromat BV
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
Promat B.V.P.O. Box 40385
3504 AD Utrecht
The Netherlands
PromatRené van den BoschMarketing Manager
Business Development
Manager Tunnels
M. +31 610 910 265
F. +31 180 551 227
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
Two board types for tunnel applications
• Promat systems are based on flat fire protective boards:– PROMATECT®- T, Calcium silicate aluminate
» Can be post curved on-site
– PROMATECT®- H, Calcium silicate» Can be pre-curved in factory
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
Which board type / thickness?
• Board type/thickness is selected dependent on:– Application (lining, cable duct, suspended ceiling, …)
– Thermal failure criteria » Structural lining: concrete, steel, cast iron
» Cable duct: fibre optics, power cables
» Suspended ceiling: smoke plenum, escape route, protective membrane
– Design fire curve (RWS, HCM, HC, RABT, …)– Design fire duration – Lining: flat or curved
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
Which board type / thickness?
• Board type/thickness is selected dependent on (cont.):– Mechanical requirements (dynamic loads)– Preferred installation method
» Lost formwork method» Post fixed
» Pre-fabricated systems
– Other, project specific requirements
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
Board systems in tunnels
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
Board systems in tunnels
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PROMATECT® -T
• PT-T launched in 2001• Extensive material and system testing
conducted• STUVA analysed and assessed the
test results• Reported in STUVA document
• An overview ...
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -T
1. Material introduction
2. Material tests
3. System tests
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TMaterial Introduction
• Introduction:– Colour: White / off-white board– Dimensions: 2500x1200 mm– Thickness: 12 to 40 mm– Density: 900 kg/m3 ± 10%– Melting temperature: >1400°C
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -T
1. Material introduction
2. Material tests
3. System tests
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TMaterial tests
• Water exposure:– Impermeable according to DIN EN 492
» Water cylinder 250mm high, ø35mm, 24 hours
» 24 hrs extended to 9 days
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TMaterial tests
• Water exposure:– Water erosion test according to DIN EN 12467: no
swelling, erosion or damage» Board placed under 30° angle » Flowing tap water for 6 weeks @ 10 l/min.
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TMaterial tests
• Frost / thaw exposure:– No damage, frost resistant
» 100 frost/thaw cycles @ 24hrs each
» Cycles include 8 hr water spray @ 20°C• 15 min. cycle = 3 min. spray + 12 min. break
Frost / Thaw Exposure, 1 cycle of 24 hours
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Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TMaterial tests
• Frost / de-icing salt exposure:– Prelim. standard for concrete road decks
» Spraying 3% salt solution, pre and post freezing
» 25 frost / de-icing salt cycles» Frost @ -17,5°C for 9 hours
Frost / De-icing Salt Exposure, 1 cycle
2020
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Time (hours)
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Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TMaterial tests
• Other material tests include:– Scrubbing resistance to DIN 53 778 T2– Abrasion test, Taber method, brush cleaning actions– Steam pressure cleaning– In-combustibility (A1: EN 13501)– Pull-out strength of screws– Pull-through strength of anchors– Mechanical characteristics:
» Bending and compression strength» E-modulus
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -T
1. Material introduction
2. Material tests
3. System tests
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Dynamic load test:– 15mm boards installed on strips @ 700mm centres
– 6 cycles per minute
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Dynamic load test (cont.):– 50.000 cycles @ ±3KPa plus 100.000 cycles @ ±5KPa– Deflection recordings:
» Non sealed boards : +0,40mm / -0,29mm» Sealed boards : +2,29mm / -2,62mm
» No damage, no irreversible deformation, no cracks
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Thermal stability test at TNO, NL:– 15mm board, directly anchored to concrete slab
» 4,5 anchors per m2
– Fire curve: RWS, 2 hours– Concrete grade: B35– No mechanical failures
R W S, R ijk sW a te rStaat, NL
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Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Fire test at IBS, Austria:– 30mm board, directly anchored to concrete slab – Fire curve: RWS, 3 hrs– Concrete grade: B30
– Water saturated specimen (3 days)» To observe spalling of the board itself
– RWS criteria were met after 185 minutes:» Interface : 336°C (max. 380 °C), no spalling
» Reinforcement : 91°C (max. 250 °C)
RWS, RijksWaterStaat, NL
1200
13001350
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890
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0 30 60 90 120 150 180
Time [min]
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Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Fire test at Redco, Belgium:– 15mm board, directly anchored to concrete slab – Fire curve: Hydrocarbon, 4 hrs– Concrete grade: B45– Temp. criterion: 300°C on reinforcement (50mm cove r)
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Fire test at Redco, Belgium (cont.):– Temp. criterion was met after 240 minutes HC exposure:
» Reinforcement (50mm) : 231°C (max. 300°C)
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Fire test at Redco, Belgium:– Fire curve: RABT 30 and RABT 90 + 110 min. cooling– Concrete grade: B55– Temp. Criterion RABT: 300°C on reinforcement
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Fire test at Redco, Belgium (cont.):– Two fields in each test
» A: Directly fixed to concrete slab
» B: Fixed on steel sub-frame
A B
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Fire test at Redco, Belgium (cont.):– Temperature recordings RABT 30 + 110 min. cooling– PT-T board 15mm thick, 50mm cover
Field Interface (°C) Rebar (°C), max. 300°C A 297 (no spalling) 110 B 267 (no spalling) 95
A B
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Fire test at Redco, Belgium (cont.):– Temperature recordings RABT 90 + 110 min. cooling– PT-T board 20mm thick, 50mm cover
Field Interface (°C) Rebar (°C), max. 300°C A 270 (no spalling) 103 B 274 (no spalling) 102
A B
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Cast iron tubbings:– 2x15mm boards (can be post-curved)
– Fire curve: RWS, 2 hours– Max. temp on cast iron: 268°C
» Temp. criterion: 300°C on cast iron
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
STUVA assessment on PT® -TSystem tests
• Cable protection:– 2x25mm boards– RWS, 2 hours– Max. temp on cable: 158°C– No short-circuit
Towards an improved use of underground space
Fire Protection Engineering for New and Existing Tunnels – London – 6 October 2006
• STUVA report on PROMATECT® -T available through:[email protected]
Thanks for your attention!
STUVA report available
