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Weathering of UPCV Pipes

LeHunt

Materials and Their Characteristics # 1985 York

The behaviour of UPVC pipes exposed to natural weathering for periods up to 51 months has been evaluated in terms of colour change, surface behaviour and low speed mechanical properties and the influence of CaCO,/Tj;0, substitution and gelation variations has been investigated within the programme.

As part of a continuing programme to evaluate the behaviour of UPVC products under natural exposure conditions encountered in Australia, the influence of varying gelation levels and formulation substitution of CaCO3 and TiO2 within standard specification constraints has been examined.

The specimens were exposed at 40° slope facing North and exposure conditions recorded both in calendar months elapsed and in terms of ultra violet radiation <385nm as measured for the exposure zone by Eppely pyranometer and expressed in terms of MF.Hr/m2.

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Author(s) : Robert LeHunt

Nationally moderated and approved competency training Units and Qualifications have been established in Australia for plastics pipes within an overall Plastics Industry Training Package. Delivery of such Units over a 21 year period has contributed to a greater understanding of various plastics pipes materials,...

1998 Gothenburg : Plastics Pipeline Training Systems

Author(s) : LeHunt

A comprehensive package of training programs for plastics pipeline systems has been developed for designers, installers, and operators in water supply, irrigation. gas, and drainage applications. These programs have been operational in Australia, and New Zealand over the last 4 years period, and are applied to PE,...

1988 Bath : Mechanical Behaviour of Composite Thermoplastic Pipes

Author(s) : LeHunt

The theory and experimental behaviour of solid skin/foam core PVC composite pipes is discussed.Experimental load testing for periods in excess of 10,000 hours has been conducted and the influence of the ratio of skin/core sections examined within the programme to evaluate long term design properties for external...

1982 York : Weathering Behaviour in UPVC Pipes

Author(s) : LeHunt

Exposure df UPVC systems in storage and service leads to changes in physical properties with increased exposure periods. A programme of external exposure and artificial accelerated exposure has been undertaken and changes to surface gloss, low speed mechanical properties and colour development monitored.

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Weathering of UPCV Pipes

LeHunt

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