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The Open Materials Science Journal
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From the analyses of solution saturation states, we estimate that between and tons of CO 2 have precipitated from the drainage waters.
Occurrence of Apatite in Slag
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Luminescence dating of archaeometallurgical slag: use of the SAR on copper and iron slag from archaeological sites in Britain and Greece.
Historical Version s – view previous versions of standard. More C This specification covers three strength grades of finely ground granulated blast-furnace slag Grades 80, , and for use as a cementitious material in concrete and mortars. The slag shall contain no additions and shall conform to the sulfide sulfur and sulfate chemical composition requirement. Physical properties of the slag shall be in accordance with the requirements for fineness as determined by air permeability and air content, slag activity index, and compressive strength.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
The material may also be useful in a variety of special grouts and mortars, and when used with an appropriate activator, as the principal cementitious material in some applications. More detailed information on that subject is contained in ACI R Within the text, the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
Combining values from the two systems may result in non-conformance with the standard. Values are stated in only SI units when inch-pound units are not used in practice.
The shortage of waste landfill space for waste disposal and the high demand for fill materials for land reclamation projects in Singapore have prompted a study on the feasibility of using spent copper slag as fill material in land reclamation. The physical and geotechnical properties of the spent copper slag were first assessed by laboratory tests, including hydraulic conductivity and shear strength tests. The physical and geo-technical properties were compared with those of conventional fill materials such as sands.
The potential environmental impacts associated with the use of the spent copper slag for land reclamation were also evaluated by conducting laboratory tests including pH and Eh measurements, batch-leaching tests, acid neutralization capacity determination, and monitoring of long-term dissolution of the material. The spent copper slag was slightly alkaline, with pH 8.
Haustein, M. Slag is often the only relic of early pyrometallurgical processes. In archaeological research information about the age of slag deposits is needed and difficult to obtain with traditional methods. Thermoluminescence has a great potential in this field, because the smelting process leads to a well defined resetting of the ‘Luminescence Clock’. Metallurgical slag generally consists of many components, artificial secondary minerals, e.
Primary minerals, called relics, are also components of slag. Such a complex composition leads to large difficulties in paleodose determination if the bulk slag is used.
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RECOVERY OF ZINC FROM SLAG USING PLASMA ARC FUMING
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Definition: granulated blast-furnace slag that has been finely ground and that is hydraulic cement. E-3 13 Cementitious Materials for Concrete. Slag in Concrete Definition: granulated blast-furnace slag that has been finely ground and that is hydraulic cement. Various types of slag are produced: – Blast-furnace slag—The nonmetallic product, consisting essentially of silicates and aluminosilicates of calcium and of other bases, that is developed in a molten condition simultaneously with iron in a blast furnace.
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