scholarly journals Evaluation of the Use of Electric Arc Furnace Slag and Ladle Furnace Slag in Stone Mastic Asphalt Mixes with Discarded Cellulose Fibers from the Papermaking Industry

Metals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1548
Author(s):  
Juan María Terrones-Saeta ◽  
Jorge Suárez-Macías ◽  
Francisco Javier Iglesias-Godino ◽  
Francisco Antonio Corpas-Iglesias
Keyword(s):  
Mechanical Properties ◽  
Cellulose Fibers ◽  
Electric Arc ◽  
Ladle Furnace ◽  
Arc Furnace ◽  
Bituminous Mixtures ◽  
Mastic Asphalt ◽  
Stone Mastic Asphalt ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

The construction sector is one of the most demanding of raw materials that exist at present. In turn, the greenhouse gas emissions that it produces are important. Therefore, at present there are several lines of research in which industrial by-products are incorporated for the manufacture of bituminous mixtures and the reduction of CO2 emissions, framed inside the circular economy. On the base of the aforementioned, in this research, bituminous mixtures of the Stone Mastic Asphalt type were developed with electric arc furnace slag, ladle furnace slag and discarded cellulose fibers from the papermaking industry. To this end, the waste is first characterized physically and chemically, and its properties evaluated for use in bituminous mixtures. Later, different groups of samples are conformed with conventional materials and with the waste in order to be able to compare the physical and mechanical properties of the obtained bituminous mixtures. The physical tests carried out were bulk density, maximum density and void index, as well as the Marshall test for the evaluation of the strength and plastic deformations of all the bituminous mixtures manufactured. The study and evaluation of the results showed that the incorporation of slag makes it possible to absorb a greater percentage of bitumen and obtain better mechanical properties, while maintaining a similar deformation and void content. Therefore, it is feasible to use the mentioned slags to create sustainable, resistant and suitable pavements for important traffic.

scholarly journals Development of High Resistance Hot Mix Asphalt with Electric Arc Furnace Slag, Ladle Furnace Slag, and Cellulose Fibers from the Papermaking Industry

2021 ◽  
Vol 11 (1) ◽  
pp. 399
Author(s):  
Juan María Terrones-Saeta ◽  
Jorge Suárez-Macías ◽  
Francisco Javier Iglesias-Godino ◽  
Francisco Antonio Corpas-Iglesias
Keyword(s):  
Physical And Mechanical Properties ◽  
Cellulose Fibers ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Ladle Furnace ◽  
Arc Furnace ◽  
Bituminous Mixtures ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag ◽  
By Products

Roads are currently essential links of communication and economic development. However, these roads are progressively requiring higher quality materials, implying a greater impact on the environment, in order to withstand the high levels of heavy vehicle traffic. Therefore, this research proposes the use of industrial by-products to create bituminous mixtures which are more resistant and durable than traditional ones. The industrial by-products used, are electric arc furnace slag, ladle furnace slag, and cellulose fibers from the papermaking industry. These by-products were physically and chemically characterized to be used to conform with bituminous mixtures. At the same time, bituminous mixtures were conformed with conventional materials, thus being able to compare the physical and mechanical properties of the conformed mixtures through different tests. The results showed how the use of cellulose fibers made it possible to absorb a greater percentage of bitumen, as well as the use of electric arc furnace slag and ladle furnace slag created mixtures, with greater Marshall stability. Therefore, sustainable, durable, resistant, and high waste mixtures were developed in this investigation.

scholarly journals Development of Porous Asphalt with Bitumen Emulsion, Electric arc Furnace Slag and Cellulose Fibers for Medium Traffic Roads

Minerals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 872 ◽  
Author(s):  
Juan María Terrones-Saeta ◽  
Jorge Suárez-Macías ◽  
Francisco Javier Iglesias-Godino ◽  
Francisco Antonio Corpas-Iglesias
Keyword(s):  
Raw Materials ◽  
Cellulose Fibers ◽  
Electric Arc Furnace ◽  
Mechanical Tests ◽  
Electric Arc ◽  
Arc Furnace ◽  
Bituminous Mixtures ◽  
Bitumen Emulsion ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

The construction of road infrastructure is one of the most polluting activities that exists today. Therefore, the use of waste from other industries is an excellent solution, since it reduces the consumption of raw materials, reduces CO2 emissions and avoids the disposal of waste in a landfill. In this study, electric arc furnace slag, cellulose fibers from the papermaking industry and bitumen emulsion were used for the conformation of sustainable and porous bituminous mixtures. Electric arc furnace slag was used as a high-resistance aggregate with a capacity sufficient to support traffic loads. Cellulose fibers were added to increase the percentage of binder in the mixture without bleeding problems, thereby achieving greater tensile strength. To do this, first the waste was physically and chemically characterized, then different mixtures were conformed and finally the mixtures were studied by means of the loss by wear and Marshall tests. The results reflected an optimal combination of materials that provided the best results in the mechanical tests, obtaining much better results than the mixtures with discontinuous grading and traditional bitumen emulsion. Therefore, a sustainable, porous and economical mixture for road use is obtained in this research.

scholarly journals Use of additives to improve the capacity of bituminous mixtures to be heated by means of microwaves

2017 ◽  
Vol 67 (325) ◽  
pp. 110 ◽  
Author(s):  
J. Gallego ◽  
M. A. Del Val ◽  
V. Contreras ◽  
A. Páez
Keyword(s):  
Microwave Heating ◽  
Energy Performance ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Heating Process ◽  
Arc Furnace ◽  
Scrap Tire ◽  
Bituminous Mixtures ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

This study examines the potential of adding electric arc furnace slag to bituminous mixtures to be heated by microwaves. The susceptibility of bituminous mixtures to microwave energy is limited and so, in order to improve the energy performance of the heating process, it is necessary to incorporate additives or components to the mixture so as to improve the capacity for microwave heating. The article presents the results of adding various components, (steel wool, scrap tire wire, silicon carbide, iron filings) and an alternative aggregate: electric arc furnace slag. According to the results obtained in the laboratory, slag addition of at least 5% by weight of the bituminous mixture represents the best option for both technical and economic reasons. The results may promote the valorization of this steel industry residue in bituminous mixtures by improving microwave heating response.

Alkali activation of electric arc furnace slag: Mechanical properties and micro analyzes

2019 ◽  
Vol 21 ◽  
pp. 97-105 ◽  
Author(s):  
Murat Ozturk ◽  
Muzeyyen Balcikanli Bankir ◽  
Omer Saltuk Bolukbasi ◽  
Umur Korkut Sevim
Keyword(s):  
Mechanical Properties ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Alkali Activation ◽  
Arc Furnace ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

New Geopolymers Based on Electric Arc Furnace Slag

2010 ◽  
Vol 69 ◽  
pp. 117-122 ◽  
Author(s):  
Maria Chiara Bignozzi ◽  
Luisa Barbieri ◽  
Isabella Lancellotti
Keyword(s):  
Mechanical Properties ◽  
Weight Ratio ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Optimum Weight ◽  
Alumino Silicate ◽  
Electric Arc Furnace Slag ◽  
Different Content ◽  
Furnace Slag

Electric arc furnace slag (EAF-S), coming from a steel productive plant in Italy, has been used as new source for geopolymers synthesis. The slag has been geopolymerized alone and with different content of metakaolin (MK) with the aim to investigate if EAF-S content plays a role in geopolymerization process. Mechanical properties results and microstructure analysis highlight that the optimum weight ratio MK/EAF-S to be used as starting materials is 40/60, 30/70, 20/80. Moreover EAF-S, when used with MK, directly participates in the formation of calcium-rich alumino-silicate gels.

scholarly journals Wasteless processing of ladle furnace and electric arc furnace slag

2021 ◽  
Vol 64 (3) ◽  
pp. 192-199
Author(s):  
O. Yu. Sheshukov ◽  
D. K. Egiazar’yan ◽  
D. A. Lobanov
Keyword(s):  
Cast Iron ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Chemical Compositions ◽  
Ladle Furnace ◽  
Arc Furnace ◽  
Actual Problem ◽  
Normative Documents ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

The actual problem of mineral resources depletion in ferrous metallurgy can be effectively solved by complex reuse of technogenic waste. That waste is mostly presented by EAF (electric arc furnace) slag and LF (ladle furnace) slag. These two kinds of slag have no complex full utilization. The residues of slag are going to the dump and then the slag dump locations pollute the environment. However, the residues of EAF and LF slag can be transformed into the valuable industrial product by interaction of the slag components. This work presents the research for joint wasteless processing of EAF and LF slag with production of Portland clinker and cast iron. The article describes disadvantages of known methods of each slag processing; the paper also shows the significance of LF slag utilization. Design and calculations of the research are presented as well as its experiment methodology. The final results show five chemical compositions for the mixtures, which allow the complex processing of this slag without any waste left. Such processing provides the production of cast iron and Portland clinker both meeting requirements of normative documents. The paper also describes the results of viscosity measurements of slag compositions, the obtained slag phases, and presents the final temperature conditions. The work also considers the results of industrial tests for the developed processing technology and a complete technological chain involving the use of tilt rotary furnaces.

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