Ladle Furnace Slag in Construction

Manso, Juan Manuel García; Losañez, Milagros; Polanco, J.A.; González, J.

doi:10.1061/(asce)0899-1561(2005)17:5(513)

Cited by 145 publications

(63 citation statements)

References 7 publications

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“…Other authors found that cement-based materials with good properties could be obtained when SS are employed as partial replacement of sand fines with optimized replacement ratios [3,4,[14][15][16][17][18]. In addition, Shi [19,20] observed that ladle slag fines showed significant cementitious behaviour in the presence of an alkaline activator and that the cementitious properties became more evident decreasing the size of the slag particles.…”

Section: Introductionmentioning

confidence: 99%

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

et al. 2017

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This paper deals with the production of mortars prepared using a commercial CEMIIB-S 42.5N cement, a natural aggregate, steelmaking slag, a superplasticizer and water. The as-received unprocessed steel slag was milled by a hammer mill and then sieved to obtain batches with different maximum particle size. Each batch was used, together with the other components, in the production of mortars which were tested, by compression and water absorption, after different aging times in order to evaluate their long term stability. Several slag-free samples were also prepared as reference materials. All mortars were prepared with fixed aggregate/cement ratio (6/1), superplasticizer/cement ratio (s/c) and water/cement ratio (w/c). It has been demonstrated that an adequate protocol for the preparation and the use of slag containing particles with 2500 µm maximum size lead to the production of materials with mechanical properties suitable for civil engineering applications after aging for 28, 90 and 180 days. However, samples containing slag particles with size equal or greater than 1000 µm display a decay of mechanical properties after longer aging in water or after accelerated aging.

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Section: Introductionmentioning

confidence: 99%

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

et al. 2017

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“…So, an outdoor weathering and some additional cautions are necessary to prevent the occurrence of any expansive phenomena [2][3][4][5][6]. In the last decades, important works on EAFS [7][8][9][10] and LFS characterization [11][12][13] have been published; it has been demonstrated the suitability of both slags in different applications, such as bituminous mixtures [14][15][16][17][18], concrete and mortars [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34], selfcompacting concrete [35][36][37], making clinker [38], soil stabilization [39][40][41] and others [42,43]. Despite these recycling possibilities, in Spain, approximately 23% of the electric slag is accumulated in landfill sites.…”

Section: Introductionmentioning

confidence: 99%

Performance of steel-making slag concrete reinforced with fibers

et al. 2017

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Abstract. In this research, the possibility of making concrete reinforced with fibers and manufactured with recycled aggregates from carbon steel production was explored. Electric arc furnace slag (EAFS) was used as coarse and medium aggregate, and part of the sand sizes. Metallic and synthetic fibers were added in different amounts. Initially, the properties of EAFS and their suitability to be used in the manufacture fiber reinforced concrete were analysed. Then, a series of fiber reinforced concrete mixtures were developed incorporating EAFS, and they were compared with the reference mixtures, made with conventional components plus fibers and made with EAFS without fibers. A series of tests were performed, including concepts such as consistency, compressive strength, flexural strength, splitting tensile strength, resistance to water penetration or toughness. The results show that it is possible to make a suitable steel-slag concrete reinforced with fibers, complying with the standard requirements for it use in pavements and slab, and improving their proprieties respect to the control mixtures.

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“…In the situation of the rapid economic development of the country, the steel industry also presents the trend of leapfrog development [1].Steel slag is in the process of iron and steel production by slagging reactants, erosion loose materials, smelting furnace and furnace material, metal furnace charge into the impurities and specially for adjust the properties of steel slag and join the slagging materials composed of solid slag, is a by-product of the production process of steel, the number of general for crude steel output by 12% to 20% [2][3][4].The yield of steel slag is closely related to the equipment level and metallurgical technology, and the process of making steel less slag or even slag is widely used in developed industrial countries. However, due to the backward production technology in China, the quality of raw materials is poor, the steel slag of steel production is more, and the production of steel slag of 1-ton steel [5].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance of Microorganism Mineralized Steel Slag Cementing Material

Yi¹,

Qian²

2017

Topics in Intelligent Computing and Industry Design (ICID)

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In this paper, the steel slag-lime system was used to prepare steel slag products under the enzymatic action of microorganisms. The results showed that, after 3h carbonization, the compressive strength increased from 32.8MPa to 49.5MPa, the strength of steel slag products was improved obviously. By CT and other analytical tools, the mineralization depth of microorganism is obviously deepened, and the pore structure is optimized. The results show that the amount calcium carbonate significantly improved, the calcium carbonate filling in the pores around, the pore structure has been optimized, the strength has been improved. In addition, microorganisms have the role of loading and catalytic, on one hand, it can be a steady stream of carbon dioxide which transport it into the brick to happen sequestration, on the other hand, the secretion of the enzyme can significantly accelerate the hydration reaction rate of carbon dioxide, which will form more and more CO3 2-inside the brick, so a higher probability of Ca 2 + and CO3 2-combining to generate CaCO3.

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Ladle Furnace Slag in Construction

Cited by 145 publications

References 7 publications

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

Production and Compression Strength of Mortars Containing Unprocessed Waste Powdered Steel Slag

Performance of steel-making slag concrete reinforced with fibers

Preparation and Performance of Microorganism Mineralized Steel Slag Cementing Material

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