oa Civil Engineering = Siviele Ingenieurswese - Virginia sewer experiment data used in sewer design

Volume 16, Issue 7
  • ISSN : 1021-2000



Nineteen years ago a 65 m experimental sewer section was commissioned in Virginia, Free State. It comprised three sets of 900 mm diameter concrete pipe, each of which contained nine different types of cementitious materials. In the intervening period valuable information was obtained by monitoring the performance of these materials, and this information has now been combined with the predictive theory, developed in the United States and known as the Life Factor Model (LFM), to produce a sewer design manual. It will be published later this year by the PIPES Division of the Concrete Manufacturers' Association (CMA).

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