February 9, 2009, the new site campus
cultural center in the construction of CCTV occurred particularly serious fire
accident. Caused a firefighter died, six firefighters and two construction
workers were injured in the rescue process. Building fire, smoke over an area
of 21333 square meters, of which burned area 8490 square meters, causing direct
economic losses of 163.83 million yuan. This is a liability accident.
The direct cause of the accident was there
was someone without the consent of the relevant departments on the construction
site within the illegal organization large-scale fireworks setting off
activity.
But one of the main indirect reasons is
that in the cultural center, the used of a large number of unqualified
insulation board curtain wall project.
Usually, the insulation wall are made of
polystyrene foamed materials or foamed polyurethane material, but if it is not
doing a good flame retardant treatment, the fire and quickly spread to every
corner of the building just like a fuse.
Expandable Polystyrene, EPS, which is
commonly known as White Foam, is currently the most widely use, high ratio of
foam plastics varieties. Expandable Polystyrene EPS is widely used in
packaging, building and road area and so on, and can be subdivided into Flame
Retardant EPS and Fire Resistant EPS.
EPS need flame retardant processing when
used in the construction field, the method is in the synthesis of EPS
masterbatch added as flame retardants (usually HBCD). Treatment of flame
retardant, flame retardant effect of EPS can be increased from V-2 level to V-1
level or V-0 level, meet the requirements of building fire retardant.
Compared with Flame retardant substandard
EPS foam board, Flame Retardant EPS foam is not such expensive, illegal
manufacturer in order to save money and benefit, create such a great loss!
