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 Development of Slurry Surfacing with Electric Arc Furnace Slag for Pavements with Friction Problems

Minerals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 878
Author(s):  
Juan María Terrones-Saeta ◽  
Jorge Suárez-Macías ◽  
Francisco Javier Iglesias-Godino ◽  
Francisco Antonio Corpas-Iglesias
Keyword(s):  
Electric Arc Furnace ◽  
Mechanical Tests ◽  
Electric Arc ◽  
Proper Solution ◽  
Arc Furnace ◽  
Bituminous Mixture ◽  
Pavement Maintenance ◽  
Bitumen Emulsion ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

Pavement maintenance is an essential activity for maintaining the quality of the pavements. It is common for the ageing pavement to present problems of friction, so a proper solution must be provided. In this work, electric arc furnace slags are incorporated in slurry surfacing to provide adequate friction with this technique. The electric arc furnace slag was studied with physical, chemical, and mechanical tests to evaluate its suitability in the formation of the bituminous mixture. At the same time, different groups of samples were made with increasing percentages of bitumen emulsion and slag as coarse aggregate, determining the wear of the different families and the cohesion. The results reflected the excellent characteristics of the electric arc furnace slags, and an optimal combination of materials (slag, aggregate, water, and bitumen emulsion) could be obtained to develop slurry surfacing applicable to important traffic roads. This provided a use for the electric arc furnace slag in which its mechanical properties were used and a sustainable bituminous mixture with excellent characteristics and respectful of the environment was developed.

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.

Effect of Feldspar Content on Electric Arc Furnace Slag (EAFS) Added Tiles

2014 ◽  
Vol 1024 ◽  
pp. 235-238 ◽  
Author(s):  
Mohamad Hasmaliza ◽  
Anasyida Abu Seman ◽  
Wei Long Gan
Keyword(s):  
Raw Materials ◽  
Strength Properties ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Ceramic Tiles ◽  
Ceramic Tile Production ◽  
Ball Clay ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

Electric arc furnace slag (EAFS) is a solid waste from steel making industrial. Previously, EAFS was deposited, recycled or used as fertilizer. In present study, EAFS is used as one of the raw materials in ceramic tile production. EAFS added tiles samples have been prepared by mixing of EAFS with ball clay, quartz and feldspar. The feldspar content was varied at various weight percentages (0, 10 and 20 %) to observe their effect on the produced samples. The raw materials mixture was pressed and then sintered at temperature range 1100°C-1175°C for 1 hour. In general, results shows that, sample with higher content of feldspar require shorter vitrification range and having relatively higher density and good strength properties. In addition, MOR value was increasing as the sintering temperature was increasing. However when the temperature reached 1175°C, the MOR was dropped which may be due to the early vitrification of the compositions, resulting in over firing, grain growth and recrystallization. Whereas the density values are relatively higher than the conventional vitreous ceramic tiles due to the presence of high amount of iron oxide from the EAFS.

scholarly journals Determination of the Chemical, Physical and Mechanical Characteristics of Electric Arc Furnace Slags and Environmental Evaluation of the Process for Their Utilization as an Aggregate in Bituminous Mixtures

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 782 ◽  
Author(s):  
Juan María Terrones-Saeta ◽  
Jorge Suárez-Macías ◽  
Evaristo Rafael Moreno-López ◽  
Francisco Antonio Corpas-Iglesias
Keyword(s):  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Road Construction ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Environmental Evaluation ◽  
Bituminous Mixtures ◽  
Electric Arc Furnace Slag

Road construction is an activity that demands a significant amount of aggregates for bituminous mixtures. In addition, these aggregates must be of a suitable quality for use, even more so on high traffic roads. In response to this problem, and in order to avoid the extraction of new raw materials, research is being carried out using industrial waste as a substitute for conventional aggregates. In this way, the extraction of raw materials is reduced and landfilling of waste is avoided. However, these wastes must have certain properties and environmental advantages over natural aggregates. Otherwise, the use of waste would not be environmentally beneficial but would be more damaging to the environment. For this reason, this research evaluates the viability of using electric arc furnace slag as aggregates for bituminous mixtures, the main objectives being the determination of the characteristics of the by-product, the particularities and the critical points to be taken into account for its subsequent use in mixtures. At the same time, the environmental advantages of treating this waste to obtain a usable aggregate are evaluated in comparison with the processing of a natural aggregate. The results showed that electric arc furnace slags have a suitable chemical composition and excellent physical and mechanical properties for use in bituminous mixtures, even on high traffic roads. At the same time, it was determined that their use produces a considerable reduction in environmental afflictions. Therefore, it could be affirmed that the use of electric arc furnace slags in bituminous mixtures is recommendable as a way to develop more sustainable materials for construction.

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.

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.

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