Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
pH Changes in Solidified Dredged Materials
The cement-based solidification is recently considered as an alternative option to reuse the dredged materials as engineering fills. As the solidification involves hydration reactions, the pH value of the solidified soil can change which may affect the surrounding environment after its placement. Thus the pH value of the solidified dredged material is one of the key factors which govern its suitability as fill materials. In this study, the effects of the type of additive, curing method and curing time on the change in pH value of a solidified dredged material were investigated. Four different additives (cement, fly ash, gypsum and rice straw powder) were used. The solidified samples were cured under either humidity controlled or exposed conditions. The curing period ranges from 1 to 60 days. The test results show that among the four additives used in the study, cement gives a more substantial increase in the pH value than the other three additives. Regarding the curing conditions, samples cured under humidity controlled condition exhibit higher pH value than those cured under exposed condition.
pH Changes in Solidified Dredged Materials
The cement-based solidification is recently considered as an alternative option to reuse the dredged materials as engineering fills. As the solidification involves hydration reactions, the pH value of the solidified soil can change which may affect the surrounding environment after its placement. Thus the pH value of the solidified dredged material is one of the key factors which govern its suitability as fill materials. In this study, the effects of the type of additive, curing method and curing time on the change in pH value of a solidified dredged material were investigated. Four different additives (cement, fly ash, gypsum and rice straw powder) were used. The solidified samples were cured under either humidity controlled or exposed conditions. The curing period ranges from 1 to 60 days. The test results show that among the four additives used in the study, cement gives a more substantial increase in the pH value than the other three additives. Regarding the curing conditions, samples cured under humidity controlled condition exhibit higher pH value than those cured under exposed condition.
pH Changes in Solidified Dredged Materials
Zhao, Gan (Autor:in) / Zhu, Wei (Autor:in) / Li, Lei (Autor:in) / Zhang, Chun-Lei (Autor:in)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
14.05.2010
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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