High Performance Extruded Polystyrene Foam Board for Airport Runway
USD $150 - $200 /3 /Piece
Min.Order:1 Piece
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Nanjing Ourgreen 500Kpa,CO2 Styrofoam Sheet, Extruded Polystyrene Foam Board for Airport Runway
Nanjing Ourgreen 500 Kpa Extruded Polystyrene Foam Board in Airport Runway Parking Area
Frost - heave causes uneven ground on roads of Highspeed Railway, Pavement and Airport, which
was mainly invaded by Cold Weather, Moisture and Frost. Ourgreen XPS Board prevents penetration
of Moisture, decrease damage of extreme weather on road base, minimize freeze - thaw effect, and
prolong its life so as to ensure traffic safety.
Usually a High Compression Strength of 500Kpa to 700Kpa is applied in this special field.
Blowing Agents of Ourgreen 500Kpa Extruded Polystyrene Foam Board
The Blowing Agent of CO2 is added in the formulation in order to reach a Compression Strength of 700Kpa.
The CO2 tends to make smaller pore size and make density as high as 50Kg/m3, which enables XPS to
bear higher Compression Strength.
The existence of CO2 presents higher System Pressure requirement to the extruder. Due to boiling point
of CO2 is as low as - 78.4 degree, the Extruding System Pressure must be kept around 25Mpa to maintain
its liquid state, which means Mould can not be opened largely. This also determines that thickness greater
than 50mm at 700Kpa is difficult to produce.
Standard Requirements of of Ourgreen 700Kpa, Extruded Polystyrene Foam Board:
Item |
Unit |
Index |
Standard |
|
Apparent Density |
Kg/M3 |
43 - 47 |
GB/T6343 - 1995 |
|
Thermal Conductivity |
10℃ 25℃ |
W/(m∙k) |
≦ 0.035 ≦ 0.038 |
GB/T 10294 - 2008 |
Shear Strength |
Kpa |
≧ 300 |
GB/T10007 - 2008 |
|
Compression Strength |
Kpa |
≧ 500 |
GB/T 8813 - 2008 |
|
Elasticity Modulus |
Mpa |
38 - 42 |
GB/T 8813 - 2008 |
|
Closed-cell Rate |
% |
≧ 95 |
GB/T10799 - 2008 |
|
Dimensional Stability |
% |
≦5 |
GB/T8811 - 2008 |
|
Fire Behaviour |
C |
GB 8624 - 2008 |
Nanjing Ourgreen 500Kpa Extruded Polystyrene Foam Board Physical Parameters:
Items |
Value |
Conditions |
Compression Strength |
500 Kpa |
Tested at 10% deflection |
Thermal Conductivity |
0.032 W/(m.k) |
At 25 ℃ |
Water Absorption |
0.5% |
V/V |
Water Vapor Permeability |
2.7 ng/(m.s.Pa) |
23℃ ±1℃ RH 50%±5% |
Working Temperature |
-50℃ to + 75 ℃ |
|
Dimensional Stability |
≦ 1.5% |
70 ± 2 ℃ 48h, 90%RH |
Creep |
≦ 5% |
80 ± 2℃ 48h, 20Kpa |
Fire Classification |
E |
Nanjing Ourgreen 500Kpa Extruded Polystyrene Foam Board Packing Details:
Thickness (mm) |
Width (mm) |
Length (mm) |
Pcs/Pack |
M2/Pack |
50 |
600 |
2400 |
8 |
11.52 |