The Behaviour of Structural-Wall Recycled Plastic Pipes for Underground Sewerage without Pressure

Title: The Behaviour of Structural-Wall Recycled Plastic Pipes for Underground Sewerage without Pressure
Author(s): Rocha
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 1045 - 1053
Total Pages: 9
Nb references: 12
Language: English

Abstract: A study concerning the behaviour of structural-wall plastic pipes manufactured from recycled
plastics materials is present in this paper. These pipes are an innovative solution in the field of
underground sewer systems. The aim of the study was to evaluate the fitness for purpose of
these pipes when used in underground sewerage without pressure. The following mechanical
characteristics of the pipes were evaluated as the keys characteristics of the pipes for
resistance in buried applications: (i) ring stiffness; (ii) ring flexibility; (iii) creep ratio. Some
physical-chemistry and mechanical characteristics of the materials from which the pipes were
manufactured have been conducted. It was found ring stiffness values between 5 and 6 kN/m 2
and creep ratio values of 3,3 for the pipes subjected to this study. This means that the pipes
under study presented values for those two characteristics in according to would be expected
for conventional plastic pipes for the application referred. From the physical-chemistry
characteristics of the pipe wall constituent materials, it was concluded that it is difficult
establish specifications for these properties due to the lack of uniformity. Further studies have
to be done on long term behaviour and the influence of materials variation in the mechanical
behaviour of the pipes.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.115