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ISTANBUL STRAIT ROAD TUBE CROSSING PROJECT

YMSK JV

PASSIVE FIRE PROTECTION

05 FEBRUARY 2015

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AGENDA

• Employer’s Requirements

• Proposed Products for Fire Protection

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Employer’s Requirements

As per Chapter 4, Clause 4.1.6.2/3:

Fireproofing material is to be installed in the shield TBM tunnel section. Segments which are exposed to the

road space, but at least the crown and upper half of the side walls of each tunnel section, will be installed

with this material.

TBM Tunnel Asia Cut&Cover Tunnels ATB and ETB Cut&Cover Tunnels

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Employer’s Requirements

• PIARC Fire and Smoke Control in Road Tunnels

The EUREKA tests confirmed the

maximum temperatures at the tunnel

ceiling and side walls:

• for the passenger cars up to 500°C

• for a bus 800°C

• for HGV up to 1000°C

• NFPA 502 Standard for Road Tunnels, Bridges, and Other Limited Access Highways

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Employer’s Requirements

As per Chapter 4, Clause 4.3.8/2:

A design fire time of 60 minutes fire exposure with max temperature of 1200°C and 110 minutes cooling

phase shall be assumed.

In respect of this requirement:

RABT fire curve fits for the intended

purpose; in the RABT fire curve the

temperature rises up to 1200°C within

5 minutes, the duration of the 1200°C

exposure is 60 minutes, and the cooling

period is 110 minutes.

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Employer’s Requirements

Chapter 4, Clause 4.3.8/4:

The following performance required to primary structural members protected by fire protection and

exposed to fire:

1. Explosion of concrete is not permitted,

2. The temperature in any reinforcement and structural steel shall not exceed 350°C,

3. The fireproofing material shall not fall from the crown or side walls during fire exposure or the cooling

phase. Safety factor of the segment after cooling phase shall be more than 1.1 (SF>1.1).

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Employer’s Requirements

1. Concrete structural elements shall be protected such that explosive spalling is prevented.

2. The temperature of the concrete surface does not exceed 380°C.

3. The temperature of the steel reinforcement within the concrete does not exceed 250°C.

4. Steel or cast iron tunnel linings shall be protected such that the lining temperature shall not exceed 300°C.

Summary of Requirement:

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Proposed Products for Passive Fire Protection

Board/Panel Type Products:

• Promatect-H Boards; Promat

• Aestuver-T Boards; Fermacell

Spray-on Type Products:

• Cafco FENDOLITE® MII; Promat

• Avikote AV 650; AVI

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Proposed Products for Passive Fire Protection (Cont.)

Board/Panel Type Products: Promatect-H

General Information: PROMATECT®-H is a non-combustible matrix

engineered mineral board reinforced with selected fibres and

fillers.

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Proposed Products for Passive Fire Protection (Cont.)

• Standard Shape/Dimensions: Flat, 1200 x 2500 mm.

• Promatect-H boards can be curved at site depending on the diameter of

the tunnel. Quality Control is important to prevent damages during

shaping.

• Boards can be directly fixed to the concrete soffit if the tunnel surface is

even. Steel framing members should be used for uneven surfaces.

• TBM inner surface is not even surface due to segment installation

tolerances (offsets between the segments will occur). This requires frame

installation behind the board system.

• If steel frame is to be used, durability and performance of the steel

components under fire shall be considered.

Board/Panel Type Products: Promatect-H

Post Fixed Application

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Proposed Products for Passive Fire Protection (Cont.)

Board/Panel Type Products: Aestuver-T

General Information: Aestuver-T is a non-combustible product

for fire protection made from glass-fibre and perlite as light-

weight concrete being used in tunnels for 12 years.

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Proposed Products for Passive Fire Protection (Cont.)

Board/Panel Type Products: Aestuver-T

Post Fixed Application

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Proposed Products for Passive Fire Protection (Cont.)

Spray-on Type Products: Cafco FENDOLITE® MII

Cafco FENDOLITE® MII is a spray applied, single

package factory controlled cement based premix,

based on vermiculite and portland cement being

used in tunnels since 1963. In Turkey, used in the

Marmaray Project.

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Proposed Products for Passive Fire Protection (Cont.)

Spray-on Type Products: Avikote AV 650

Avikote AV 650 is a bauxite and portland cement based, spray

and/or trowel-applied product. Full scale loaded fire tests are

conducted specific for the Marmaray Project.

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Proposed Products for Passive Fire Protection (Cont.)

Spray-on Type Products: Avikote AV 650

Fire Test of Marmaray Europe side TBM Tunnel Segments to 2-hour

RWS fire curve under loaded conditions (10Mpa) – MFPA, Germany in

March 2013 – Report PB 3.2/12-194-1.

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Proposed Products for Passive Fire Protection (Cont.)

Surface cleaning for concrete substrate: Surface cleaning with jet-washer pressurized water, if required mechanical

surface cleaning to remove extruding materials e.g. concrete parts before jet-wash cleaning.

Cleaning of extruding materials and then jet-

wash cleaning

Spray-on Type Products:

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Proposed Products for Passive Fire Protection (Cont.)

Installation of bolts and mesh: In order to avoid falling of fireproofing material due to de-bonding (during tunnel

operation or fire exposure) mesh shall be provided.

Spray-on Type Products:

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Proposed Products for Passive Fire Protection (Cont.)

Key coating application: In order to provide bonding between the substrate and fireproofing material

Spray-on Type Products:

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Proposed Products for Passive Fire Protection (Cont.)

Spray-on fireproofing material application: After curing period required for the key coating, main fireproofing material

can be applied (in layers)

Spray-on Type Products:

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Proposed Products for Passive Fire Protection (Cont.)

Surface finish after spray application:

• Surface roughness shall be less than 3mm as per the Ventilation Design. Therefore, if required trowelling will be

applied to have a smooth surface finish.

• Post painting will be applied to acheive a durable surface to tunnel cleaning.

Trowelling after spray application Painting

Spray-on Type Products:

Thank You