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World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.


Assessment of hexavalent chromium stabilizer in artifically contaminated soil using geosta as a secondary binder

Fotis, Panagiotis and Hytiris, Nicholas and Keenan, Helen (2009) Assessment of hexavalent chromium stabilizer in artifically contaminated soil using geosta as a secondary binder. In: International Conference on Sustainable Building: Sustainable building affordable to all., 2009-03-17 - 2009-03-19.

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The aim of this study was to investigate the effect of a secondary binder (Geosta) as a stabilizer on the geotechnical properties of Cr+6 contaminated soils with the use of S/S technology and to evaluate the efficacy of different mix designs via the Static Diffusion Test. Artificial contamination with Cr+6 was applied in four representative samples of soil material, weighting approximately 15 Kg each. The initial chromium concentration per cube was estimated at 128.5 mg/l and all mix designs studied were shown to be capable of reducing hexavalent chromium concentrations from 96 to 99%. The mix design which contained 400 g of Geosta, proved to be the most effective since the lowest release of chromium with maximum chromium retention (99.4%) was documented. Mix designs with 200 and 300 g of Geosta were considered to be successful in Cr+6 immobilization (with a total of 99.1 and 99% retention ability, respectively), however it was proved that the quantity of secondary binder used in a mix design is not proportional to its chromium retention capability.