Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 137, Issue 1, Pages 267-276Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2006.01.065
Keywords
stabilization/solidification; hydration; unconfined compressive strength; pore structure; carbonation
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Solidification/stabilization is accepted as a well-established disposal technique for hazardous waste. As a result many different types of hazardous wastes are treated with different binders. The S/S products have different property from waste and binders individually. The effectiveness of S/S process is studied by physical, chemical and microstructural methods. This paper summarizes the effect of different waste stream such as heavy metals bearing sludge, filter cake, fly ash, and slag on the properties of cement and other binders. The factors affecting strength development is studied using mix designs, including metal bearing waste alters the hydration and setting time of binders. Pore structure depends on relative quantity of the constituents, cement hydration products and their reaction products with admixtures. Carbonation and additives can lead to strength improvement in waste-binder matrix. (c) 2006 Elsevier B.V. All rights reserved.
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