Keyphrases
Polyvinyl Chloride
100%
Operational Lifetime
100%
Sewer pipe
100%
Sewer
50%
Flexural Test
25%
Inspection Data
25%
X-ray
25%
Mechanical Testing
25%
Failure Cause
25%
Digging
25%
Degradation Mechanism
25%
Physical Aging
25%
Multilayer Wall
25%
Hostile Environment
25%
Material Properties
25%
Fourier Transform Infrared Spectroscopy (FT-IR)
25%
Raising Concerns
25%
3-layer
25%
Tensile Test
25%
Drainage System
25%
Wall Construction
25%
Visual Inspection
25%
During Construction
25%
Viscosity Measurement
25%
INIS
testing
100%
pipes
100%
polyvinyl chloride
100%
lifetime
100%
construction
25%
defects
25%
mechanical tests
12%
failures
12%
drainage systems
12%
excavation
12%
x radiation
12%
layers
12%
inspection
12%
viscosity
12%
walls
12%
data
12%
environment
12%
aging
12%
Engineering
Testing
100%
Pipe
100%
Sewer
100%
Measurement
12%
Severe Defect
12%
Inspection
12%
Hostile Environment
12%
Aging
12%
Degradation Mechanism
12%
Defects
12%
Failure (Mechanical)
12%
Tensile Test
12%
Fluid Viscosity
12%
Mechanical Testing
12%
Excavation
12%
Test Result
12%
Drainage
12%