Civil Engineering Reference
In-Depth Information
Table 1.
TG, DMA, and tensile strength and elongation values of (
a
) S1
EPDM Membrane, (
b
) S2 EPDM Membrane, and (
c
) S3 EPDM Membrane
Heat-aging
S1
Schedule
Temp.
Days
T
g
Oils
Polymer
Strength Elongation
loss
**
(%)
loss
***
(%)
(kNm
-1
)
(°C)
(°C)
(%)
22*
0
-49
52.5
10.6
522
100
1
-48
54.0
10.9
433
100
7
-49
53.4
11.6
396
100
28
-50
54.5
10.7
324
130
1
-48
54.0
9.9
348
130
7
-49
53.6
9.7
307
130
28
-48
51.6
8.0
217
(a)
S2
Heat-aging
Schedule
Temp.
Days
T
g
Oils
Polymer
Strength Elongation
loss
**
(%)
loss
***
(%)
(kNm
-1
)
(°C)
(°C)
(%)
22*
0
-61
20.0
22.5
8.7
285
100
1
-58
13.2
25.5
8.8
266
100
7
-50
7.2
27.7
9.5
211
100
28
-46
4.9
29.1
10.5
132
130
1
-50
5.1
28.5
9.2
180
130
7
-46
2.2
30.0
10.9
88
130
28
-43
1.6
31.2
11.6
38
(b)
