elastomer (sbs) modified bituminous waterproof sheet material -ag尊龙凯时·中国官方网站

ⅰ

ⅱ

py

g

py

g

pyg

1

soluble content

3mm

2100

—

4mm

2900

—

5mm

3500

experimental

phenomena

—

base not burning

—

base not burning

2

heat resistance

℃

90

105

≤mm

2

experimental

phenomena

no flow, dripping

3

low temperature flexibility

-20

-25

non-flaw

4

0.3mpa

0.2mpa

0.3mpa

5

tensile force

the maximum peak tensile（n/50mm） ≥

500

350

800

500

900

the second-rate peak tensile（n/50mm） ≥

—

—

—

—

800

experimental

phenomena

in the stretching process, the center of specimen without bitumen coating cracking or base separation phenomenon

6

extensibility

the maximum peak expands rate % ≥

30

—

40

—

—

the second peak expands rate% ≥

—

—

15

7

after flooding quality increase %

pe.s

1.0

m

2.0

8

thermal aging

pull retention/% ≥

90

elongation rate/% ≥

80

       low temperature flexibility/℃

-15

-20

non-flaw

dimensional change

rate /% ≤

0.7

—

0.7

—

0.3

mass loss rate/%  ≤

1.0