Study on Cr(VI) Leaching from Cement and Cement Composites
نویسندگان
چکیده
منابع مشابه
Hexavalent Chromium Leaching from Cements and Cement Composites
Chromium is one of the 25 most widespread elements in the Earth’s crust and occurs as an indelible non-volatile trace element in raw materials used in cement clinker production (clay, limestone and iron additives in particular). Chromium in raw materials mentioned above is mainly in form of trivalent chromium. Naturally occurring chromium (III) is not initially harmful, since it is chemically s...
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Leaching of metals from cement under various environmental conditions was measured to evaluate their environmental safety. A cement product containing clinker, which was produced from cement kiln co-processing of hazardous wastes, was solidified and leaching of metals was characterized using the 8-period test. Concentrations and speciation of metals in cements were determined. Effects of ambien...
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As structural materials, cement-matrix composites have received much attention in terms of their mechanical properties, but relatively little attention in terms of their electrical conduction properties. Nevertheless, the electrical properties are relevant to the use of the structural materials for non-structural purposes such as sensing and electromagnetic interference (EMI) shielding. The abi...
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Polymer-cement composites (PCCs) are materials in which the polymer and mineral binder create an interpenetrating network and co-operate, significantly improving the performance of the material. On the other hand, the need for the utilization of waste materials is a demand of sustainable construction. Various mineral powders, such as fly ash or blast-furnace slag, are successfully used for the ...
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ژورنال
عنوان ژورنال: International Journal of Environmental Research and Public Health
سال: 2018
ISSN: 1660-4601
DOI: 10.3390/ijerph15040824