2014 Chicago : Determining the Processing Quality of PVC Pipe by DSC – How Precise?
Author(s) : DALE B. EDWARDS, ANAND R. SHAH, DONALD E. DUVALL
Differential scanning calorimetry (DSC) has been used to study the processing of PVC pipes. This work has been largely embodied in ISO 18373-1-2007, Rigid PVC Pipes –differential scanning calorimetry (DSC) method – Part 1: Measurement of the processing temperature and Part 2: Measurement of the enthalpy of fusion for...
2004 Milan : Manufactured Aggregate as Imported Backfill Material for Plastics Pipes
Author(s) : Newport, Wijeyesekara, Edwards
Research work undertaken at the University of East London has produced new forms of sustainable manufactured aggregate, which gives a backfill material which has many advantages over natural materials. The unique geotechnical properties of the aggregate make it an idea material for the laying of plastic pipes allowing...
2001 Munich : Cable Drawing Trough Deformed Plastic Ducts
Author(s) : Fairfield, Reid, Hounsome, Edwards, Sibbald
This paper provides estimates of the draw force needed to pull sub-ducts or cables through
a series of typical ducted utility networks. Variables such as : coefficient of friction between
the outside of the cable and inside of the duct, the main duct’s vertical diameter, the cable
bundle or sub-duct’s external...
2001 Munich : Complex Yield Behaviour of PE100 Resin on Plane Strain Tensile Specimen
Author(s) : Choi, Lee, Broutman, Edwards, Palermo, Cho, Choi, Park
In recently designated plane strain grooved tensile (PSGT) methodology of ASTM F2018
standard, a groove in the direction perpendicular to the loading axis allows biaxial stress
state to be generated under a uniaxial loading. The biaxial stress state produced very closely
approximates the internally pressurized pipes...
2001 Munich : Measurement of Scores and Scratches on PE Pipes used in No-Dig Operations
Author(s) : Stokes, Potter, Muhl, Acland
Research indicates that the scoring of polyethylene pipes that can occur during directional
drilling operations in clay soils will not exceed the specification of 10% pipe wall scoring
depth. However, a higher level of damage may occur in different types of soils from these
operations. Further investigations from...
2001 Munich : Optimising the Performance of Ferrule Straps with PVC Pipes
Author(s) : Stokes, Potter, Metcalfe, Bowman, Graham
The response of three different forms of polyvinyl chloride (PVC) pipe has been explored
when the pipes had attached to them ferrule straps. Pipes were subjected to fluctuating
internal pressure (fatigue) loading at 20°C, and the lifetimes, location of any failures and
the types of failures recorded. Tests were made...
1995 Edinburgh : From Pipe to Pipeline
Author(s) : Stokes, Morris
At this Conference, the main focus is on the pipe : hardly surprising since this forms a large part of the material cost of a sewer, water, gas or fuel line. However, the pipe is often only a small part of the total cost of a pipeline installation. It is the jointing of the pipes to each other and to valves and pumps...
1982 York : Extrudate Cooling of Medium Density Polyethylene Pipe Sections
Author(s) : Edwards,Ellis, Georghiades,Smith
A model is presented for the prediction of cooling rates and temperature profiles during the cooling and solidification of M.D.P.E. pipes. Experimental measurements from an industrial production line are reported and these confirm the predictions of the model. Finally, the model is used to determine the most important...