publication . Article . 2014

Evaluation of novel reactive MgO activated slag binder for the immobilisation of lead and zinc

Fei Jin; Abir Al-Tabbaa;
Open Access English
  • Published: 12 Aug 2014
  • Publisher: Elsevier
  • Country: United Kingdom
Abstract
Although Portland cement is the most widely used binder in the stabilisation/solidification (S/S) processes, slag-based binders have gained significant attention recently due to their economic and environmental merits. In the present study, a novel binder, reactive MgO activated slag, is compared with hydrated lime activated slag in the immobilisation of lead and zinc. A series of lead or zinc-doped pastes and mortars were prepared with metal to binder ratio from 0.25% to 1%. The hydration products and microstructure were studied by X-ray diffraction, thermogravimetric analysis and scanning electron microscopy. The major hydration products were calcium silicate ...
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free text keywords: Compressive strength, Chemistry, Calcium silicate hydrate, chemistry.chemical_compound, Hydroxide, Slag, visual_art.visual_art_medium, visual_art, Lime, engineering.material, engineering, Portland cement, law.invention, law, Calcium hydroxide, Zinc, chemistry.chemical_element, Chemical engineering, Metallurgy
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