Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated Soils
Two soils spiked with lead at different rates were stabilised/solidified using Portland cement and fly ash at different soil:binder ratios and tested for their setting time, unconfined compressive strength (UCS), leachability and durability. Results show that soil texture, percentage of binders and...
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AIDIC Servizi S.r.l.
2013-06-01
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Series: | Chemical Engineering Transactions |
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doaj-5294ab598e6944ac99ff707c31e22cda2021-02-22T20:59:52ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162013-06-013210.3303/CET1332065Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated SoilsP. FalcigliaF.G.A. VagliasindiTwo soils spiked with lead at different rates were stabilised/solidified using Portland cement and fly ash at different soil:binder ratios and tested for their setting time, unconfined compressive strength (UCS), leachability and durability. Results show that soil texture, percentage of binders and lead concentration play an important part in the treatment, significantly influencing the performance of the resulting products in terms of curing, compressive strength and durability. Pb soil concentrations higher than 15,000 mg kg-1 were found to heavily reduce the applicability of the treatment requiring the maximum amount of binder in order to satisfy the performance criteria. The performance of sandy soils was shown to be limited by setting time and UCS features due to the retardation of the hydration reactions and also by its leaching behaviour, whereas for silt-clayey soils the critical parameter is the mechanical resistance.https://www.cetjournal.it/index.php/cet/article/view/6459 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
P. Falciglia F.G.A. Vagliasindi |
spellingShingle |
P. Falciglia F.G.A. Vagliasindi Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated Soils Chemical Engineering Transactions |
author_facet |
P. Falciglia F.G.A. Vagliasindi |
author_sort |
P. Falciglia |
title |
Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated Soils |
title_short |
Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated Soils |
title_full |
Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated Soils |
title_fullStr |
Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated Soils |
title_full_unstemmed |
Stabilisation/Solidification of Pb Polluted Soils: Influence of Contamination Level and Soil:Binder Ratio on the Properties of Cement-Fly Ash Treated Soils |
title_sort |
stabilisation/solidification of pb polluted soils: influence of contamination level and soil:binder ratio on the properties of cement-fly ash treated soils |
publisher |
AIDIC Servizi S.r.l. |
series |
Chemical Engineering Transactions |
issn |
2283-9216 |
publishDate |
2013-06-01 |
description |
Two soils spiked with lead at different rates were stabilised/solidified using Portland cement and fly ash at different soil:binder ratios and tested for their setting time, unconfined compressive strength (UCS), leachability and durability. Results show that soil texture, percentage of binders and lead concentration play an important part in the treatment, significantly influencing the performance of the resulting products in terms of curing, compressive strength and durability. Pb soil concentrations higher than 15,000 mg kg-1 were found to heavily reduce the applicability of the treatment requiring the maximum amount of binder in order to satisfy the performance criteria. The performance of sandy soils was shown to be limited by setting time and UCS features due to the retardation of the hydration reactions and also by its leaching behaviour, whereas for silt-clayey soils the critical parameter is the mechanical resistance. |
url |
https://www.cetjournal.it/index.php/cet/article/view/6459 |
work_keys_str_mv |
AT pfalciglia stabilisationsolidificationofpbpollutedsoilsinfluenceofcontaminationlevelandsoilbinderratioonthepropertiesofcementflyashtreatedsoils AT fgavagliasindi stabilisationsolidificationofpbpollutedsoilsinfluenceofcontaminationlevelandsoilbinderratioonthepropertiesofcementflyashtreatedsoils |
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