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Showing 1 to 12 of 12 for “"cement kiln dust"”.
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Synergistic and Environmental Benefits of Using Cement Kiln Dust With Slag and Fly Ash in Cemented Paste Tailings
… of internal sulphate attack in ordinary Portland cement (CSA Type GU) based cemented paste tailings containing sulphide minerals and have observed secondary gypsum as an ubiquitous phase in such matrices. The secondary gypsum, due to its soft nature and swelling and expansive properties, is …
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Evaluating the Leachability of Elements from Residuals Generated by Hydraulic Fracturing in Marcellus Shale
… prior to disposal in a municipal landfill. Cement kiln dust (CKD), used for solidification, was also considered in this study. All samples were subjected to a variety of laboratory techniques to determine their elemental composition and the potential for the elements to leach from the …
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Reducing Moisture Damage in Asphalt Mixes Using Recycled Waste Additives
… effectiveness of two waste products: fly ash and cement kiln dust (CKD), and compared them with hydrated lime and an amine-based chemical additive. The results indicate that class C fly ash can be used as an asphalt anti-stripping additive; however it is more costly than lime or amine …
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Investigations into the recycling of quarry wastes from the South East of England
… with a range of other waste products including Cement Kiln Dust, Ground Granulated Blast-furnace Slag and Pulverized Fuel Ash. The mixes were subjected to a CO2 atmosphere for varying lengths of time, to determine their carbonation potential and optimum CO2 exposure time, in order to produce …
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Sequestration of carbon dioxide (CO2) using bio-foamed concrete brick incorporating bacillus tequilensis bacteria
… Bacillus tequilensis successfully isolated from cement kiln dust (CKD) to acclimatize in B-FCB. The B.tequilensis have the ability to produce carbonic anhydrase (CA) and urease enzymes to sequestrate CO2 and convert it to CaCO3. 2k factorial and Response Surface Method (RSM) analysis were used to …
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The Physiological Impacts of Soil Alkalising Agents on Legumes.
… and subsequent yield. Additionally, industrial by-products that typically have been regarded as waste are being increasingly used as alternatives to traditional fertiliser sources. One of these, cement kiln dust (CKD), is a potential liming agent and potassium fertiliser. In a field …
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Determination of metal concentrations in vegetation, soil, dust, and water in the vicinity of a cement factory in North West province, South Africa
On a per capita basis, cement is the second most widely consumed product in the world and its demand is increasing globally due to population growth and urbanisation. Manufacturing plants produce cement kiln dust (CKD) as one of the by-products while coal provides the dominant energy source in the …
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Characterizations of concretes with alkali-activated binder and correlating their properties from micro- to specimen level
The manufacturing of portland cement (PC), the main binder of concrete, generates large amount of CO2 (a greenhouse gas), cement kiln dust (solid waste), and consumes significant amount of heat energy. Alkali-activated binder (AAB) is increasingly being considered as an environmentally friendly or …
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Evaluating Leachability of Residual Solids Generated from Unconventional Shale Gas Production Operations in Marcellus Shale
… of process water (TS), sludge solidified with cement kiln dust (SS), raw solids obtained by gravity separation of process water (RS), and drilling mud (DM). The samples were subjected to both single extraction (i.e. Shake Extraction Test, SET) and multiple extraction (i.e. Immersion Test, IT) …
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Development of a New Environmentally Friendly Glass Fibre Reinforced Cold Mix Microasphalt with High Resistance to Cracking and Deformation.
Nowadays, the pavement industry plays an important role in the global transportation infrastructure and stimulates economic growth in both advanced and emerging countries. Nevertheless, most of these transportation infrastructures are paved with using hot mix asphalt (HMA) technology. Apropos to …