Profile Selection Table for Each Application
| |
Circular |
Box Culvert |
Arch Culvert |
|
Host pipe |
|
|
|
|
Rehabilitated pipe |
|
|
|
|
Type of Profile |
Rehabilitated Pipe Dia. |
Rehabilitated Pipe Size |
Hunch Radius |
|
#79S |
850 to 1360mm |
|
|
|
#80SW
("W" steel reinforced) |
|
Shorter dimension of either W or H is < 800, or > 1300mm |
> 250 mmR |
|
#79SW
("W" steel reinforced) |
1360 to 2130mm |
Shorter of either W/H is > 1300, or longer of W/H is < 2000mm |
> 300 mmR |
|
#792SU
("U" steel reinforced) |
> 2130mm |
Longer of W or H is > 2000, and < 5000mm (min. 1300mm) |
> 600 mmR |
|
Material |
Rigid PVC with modifier (color: gray) |
|
Steel reinforcement material |
JIS G 3302 Hot dip galvanized steel |
|
|
|
|
|
Physical Properties of the SPR Profile
Cell Classification Test Results (ASTM D-1784)
|
Properties & Units |
Test method |
Test Conditions |
Standard / Target |
Results |
Cell Class |
|
Impact Strength
Izod (kg-cm/cm) |
ASTM
D256 |
Thickness 6.35mm |
3.54 kg-cm/cm |
N.B.
(93.3) |
4 (5) |
|
23°C, n=5 |
0.65 ft-lb/in |
|
Tensile Strength
(kg/cm2) |
ASTM
D638 |
Type I, thick. 3.2mm |
41.4 MPa |
438 |
3 |
|
23°C, n=3 |
6004 psi |
|
Tensile Modulus
(kg/cm2) |
ASTM
D638 |
Type I, thick. 3.2mm |
2482 MPa |
25765
(extruded) |
4 |
|
23°C, n=5 |
359983 psi |
|
HDT
(°C) |
ASTM
D648 |
Thickness 3.2mm |
70 °C |
70
(Annealed) |
4 |
|
Load 1.82MPa |
158 °F |
|
Flammability
(mm) (sec) |
ASTM
D635 |
d/w/l=3.2/13/125mm |
Burning < 25mm |
OK |
|
|
n=10 |
Burning time<10sec |
Note: All test results are based on milled and pressed specimens except for tensile modulus.
Chemical Resistance of the SPR Profile
Test method: JSWAS K-1 (Rigid vinyl chloride pipe for sewerage)
| |
Weight change by exposure |
|
|
|
Testing solution |
Before exposure
(mg/cm2) |
After exposure
(mg/cm2) |
Weight change
(mg/cm2) |
JSWASK-1
Specification |
|
Distilled water |
199.92 |
199.82 |
0.10 |
Less than
± 0.2mg /cm2 |
|
Sodium chloride
aqueous solution
(10 w/w%) |
197 63 |
197.54 |
0.09 |
|
Sulfuric acid
(30 w/w%) |
196 43 |
196.33 |
0.10 |
|
Nitric acid
(40 w/w%) |
198. 22 |
198.10 |
0.12 |
|
Sodium hydroxide
aqueous solution
(10 w/w%) |
196.52 |
196.52 |
0.00 |
Cell Class (ASTM D-1784)
Sulfuric acid
a) 93%, 131°F, 14days
|
Change of Weight |
Initial |
14 days |
Change (%) |
Ave. Change (%) |
|
8.208 |
9.049 |
10.25 |
9.69 |
|
8.452 |
9.234 |
9.25 |
|
8.314 |
9.109 |
9.56 |
|
Bending Strength (MPa) |
76.003 |
72.301 |
-4.87 |
N / A |
b) 80%, 140°F, 30days
|
Change of Weight |
Initial |
14 days |
Change (%) |
Ave. Change (%) |
|
8.770 |
8.957 |
2.13 |
|
|
8.447 |
8.657 |
2.49 |
|
8.550 |
8.756 |
2.41 |
|
Bending Strength (MPa) |
76.003 |
78.396 |
3.15 |
N / A |
|
