Geotechnical properties of tire-sand mixtures as backfill material for buried pipe installations


Terzi N. U. , Erenson C., Selcuk M. E.

GEOMECHANICS AND ENGINEERING, cilt.9, ss.447-464, 2015 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 9 Konu: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.12989/gae.2015.9.4.447
  • Dergi Adı: GEOMECHANICS AND ENGINEERING
  • Sayfa Sayıları: ss.447-464

Özet

Millions of scrap tires are discarded annually in Turkey. The bulk of which are currently landfilled or stockpiled. These tires consume valuable landfill space or if improperly disposed, create a fire hazard and provide a prolific breeding ground for rats and mosquitoes. Used tires pose both a serious public and environmental health problem which means that economically feasible alternatives for scrap tire disposal must be found. Some of the current uses of scrap tires are tire-derived fuel, creating barrier reefs and as an asphalt additive in the form of crumb rubber. However, there is a much need for the development of additional uses for scrap tires. One development the creation of shreds from scrap tires that are coarse grained, free draining and have a low compacted density thus offering significant advantages for use as lightweight subgrade fill and backfill material. This paper reports a comprehensive laboratory study that was performed to evaluate the use of a shredded tire-sand mixture as a backfill material in trench conditions. A steel frame test tank with glass walls was created to replicate a classical trench section in field conditions. The results of the test demonstrated that shredded tires mixed with sand have a definite potential to be effectively used as backfill material for buried pipe installations.