scholarly journals Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration

2020 ◽  
Vol 20 (4) ◽  
pp. 225-241
Author(s):  
Josué Claudio Metz ◽  
Elenize Ferreira Maciel ◽  
Marilise Garbin ◽  
Regina Célia Espinosa Modolo ◽  
Carlos Alberto Mendes Moraes ◽  
...  
Keyword(s):  
Portland Cement ◽  
Setting Time ◽  
Construction Materials ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Hydration Heat ◽  
Arc Furnace ◽  
Cement Pastes ◽  
Electric Arc Furnace Dust ◽  
Lime Kiln

Abstract Studies have indicated that the use of electric arc furnace dust (EAFD) results in a delay in the hydration time of Portland cement. Calcium-rich waste such as lime kiln waste (LKW) is one of the techniques used to offset this delay as it accounts for the lack of this element in calcium silicate hydrate (C-S-H) production in the mixture. The objective of this study was to evaluate the influence of electric arc furnace dust (EAFD) and lime kiln waste (LKW) in the hydration process of Portland cement pastes and their influence in setting time and hydration heat. The methodology used required several steps: physiochemical and micro-structural characterization of waste samples; definition and production cement pastes with different levels of waste substitution and a reference paste and evaluation of the cement pastes with respect to setting time and hydration heat. Results showed that the substitution of 1% EAFD with or without LKW presented similar hydration heats as the reference paste. This indicated that EAFD+LKW substitution would not affect substantially the hydration reactions of cement and could allow waste recycling in construction materials.

Utilization of electric arc furnace dust as an admixture to Portland cement pastes

2013 ◽  
Vol 114 (2) ◽  
pp. 613-619 ◽  
Author(s):  
Eisa E. Hekal ◽  
Salah A. Abo-El-Enein ◽  
S. A. El-Korashy ◽  
G. M. Megahed ◽  
T. M. El-Sayed
Keyword(s):  
Portland Cement ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Cement Pastes ◽  
Electric Arc Furnace Dust

scholarly journals Effect of water and alkali content on setting time of cement pastes with electric arc furnace dust (EAFD)

◽  
2019 ◽  
Author(s):  
Margareth da Silva Magalhães ◽  
◽  
Flora Faleschini ◽  
Carlo Pellegrino ◽  
Katya Brunelli ◽  
...  
Keyword(s):  
Setting Time ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Alkali Content ◽  
Cement Pastes ◽  
Electric Arc Furnace Dust ◽  
Effect Of Water

Properties of steel foundry electric arc furnace dust solidified/stabilized with Portland cement

2007 ◽  
Vol 85 (1) ◽  
pp. 190-197 ◽  
Author(s):  
Guray Salihoglu ◽  
Vedat Pinarli ◽  
Nezih Kamil Salihoglu ◽  
Gizem Karaca
Keyword(s):  
Portland Cement ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Electric Arc Furnace Dust

Waste Steel Slag and their Influence on the Properties of Cement Blends

MRS Advances ◽  
2018 ◽  
Vol 3 (34-35) ◽  
pp. 2027-2040
Author(s):  
Sunday O. Nwaubani
Keyword(s):  
Portland Cement ◽  
Setting Time ◽  
Waste Product ◽  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Industrial Wastes ◽  
Partial Replacement ◽  
Arc Furnace ◽  
Experimental Conditions

ABSTRACTThe use of waste is rapidly becoming a supra-disciplinary field in most parts of the world where the use of industrial wastes like fly ash, granulated steel slag, silica fume, and waste fibers in construction has become very popular since the last half of the 20th century. Other forms of industrial wastes are also re-used even for more sensitive applications on soils to upgrade soil texture. For example, waste from bauxite refining (red mud) is known to be extensively re-utilised. These concepts are yet to take tangible hold in Africa, despite the huge resources available. Electric-Arc Furnace Steel slag is a major waste product from the steel industry involving the melting of scrap to make steel in an electric arc furnace. Use of such waste materials in construction alleviates the huge environmental pollution problem which often exists in areas where they are produced and/or dumped. Currently, the material is mainly used in construction works as unbound aggregate for asphalt concrete pavements, or as road base in many countries. However, it consists predominantly of oxides and silicates of magnesium, calcium, aluminium, iron and thus can be used as substitute for cement. This paper compares the effect of utilising this type of Steel slag and Granulated Blast Furness Slag, as partial replacement for Portland cement. The influence of the physical and chemical characteristics of the two materials on the setting time, compressive strength, total porosity and pore-size distribution of cement pastes have been evaluated. For the experimental conditions studied, the result reveal adequate properties for high levels of replacement but suggests that superior qualities, compared with Portland cement concrete is possible only if replacement levels do not exceed about 10%.

Characterization of chemical accelerators for sustainable recycling of fresh electric-arc furnace dust in cement pastes

2021 ◽  
Author(s):  
Abdulaziz I. Al-Negheimish ◽  
Fahad M. Al-Mutlaq ◽  
Galal Fares ◽  
Abdulrahman M. Alhozaimy ◽  
M. Iqbal Khan
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Cement Pastes ◽  
Electric Arc Furnace Dust
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