Evaluation of steel slag and crushed limestone mixtures as subbase material in flexible pavement

Stabilisation of subgrade soil by using stone dust and RBI Grade 81

“…This by-product broken into smaller sizes and is used for construction of pavement layers as aggregate. The results show that the steel slag mixed with lime stone is having significant increase in geotechnical properties, (Behiry, 2013). The natural materials such as lateritic gravel, moorum, nodular laterite, calcrete, etc.…”

Characterisation of electric arc furnace slags as concrete aggregate in a small island developing state: A preliminary study

“…Besides, free CaO and MgO determine the volume stability [29] while high iron content is related to high specific mass [19]. Hence, the high amount of free Fe gives the slag high density and hardness [34], making it suitable as aggregates. Another oxide found in rather high amount in this study compared to literature values is TiO 2 .…”

“…Luxán et al [9] clarified that there are two types of slags produced from EAF; the black basic slag from the cold loading of scrap and white basic slag produced during the fining stage while Kuo et al [10] wrote that EAF slag can be classified into EAF oxidising slag and EAF reductive slag. Several studies dealt with the characterisation of EAF slags as it is [9,11,12] and pre-treated [13][14][15] to be consequently used in civil works namely as aggregates in concrete [16][17][18][19][20][21][22][23][24][25][26][27], asphalt mixtures [28][29][30][31][32], hydraulic concrete [33], sub-base material in flexible pavement [34][35][36], low energy belite cement [37], high performance concrete [24], reinforced concrete beams [38], thin skid-resistant surfacing [39], road construction [40], bituminous paving mixtures [41] and blended cement pastes [14] with promising results. Since most studies have been carried out in developing and developed countries and concentrated mainly on black basic slag, this research is the first preliminary attempt at characterising the two types of EAF slags from the recycling of scrap metals in a small island developing state (SIDS) with Mauritius as a case study so as to assess its suitability as a replacement of aggregates in cement-based materials.…”

Utilization of Steel Slag As Road Base And Subbase Material

“…Optimum oran %70 çelikhane cürufu ve %30 kireç taşı karışım oranında elde edilmiştir. Çelikhane cürufu ilavesi tekerlek izi ve yükten 60 cm mesafeye kadar deformasyon değerlerinde azalma sağlamıştır [17]. Sas vd., yol yapımında alternatif malzeme olarak kullanılması amacıyla çelikhane cürufunun kimyasal ve geoteknik özelliklerinin belirlenmesi için yaptıkları çalışma kapsamında CBR deneyi, plaka yükleme deneyi ve kimyasal analizler gerçekleştirmişlerdir.…”