Effect of Aging on the Resilient Modulus of Stone Mastic Asphalt Incorporating Electric Arc Furnace Steel Slag and Copper Mine Tailings

InCIEC 2014 ◽  
2015 ◽  
pp. 1199-1208
Author(s):  
Ebenezer Akin Oluwasola ◽  
Mohd Rosli Hainin ◽  
Md. Maniruzzaman A. Aziz ◽  
Santokh Singh A/L. Mahinder Singh
Keyword(s):  
Mine Tailings ◽  
Resilient Modulus ◽  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Mastic Asphalt ◽  
Copper Mine Tailings ◽  
Stone Mastic Asphalt ◽  
Furnace Steel

Environmental Impacts of Asphalt Mixes with Electric Arc Furnace Steel Slag

2011 ◽  
Vol 40 (4) ◽  
pp. 1153-1161 ◽  
Author(s):  
Radmila Milačič ◽  
Tea Zuliani ◽  
Tina Oblak ◽  
Ana Mladenovič ◽  
Janez Šč ančar
Keyword(s):  
Environmental Impacts ◽  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Asphalt Mixes ◽  
Furnace Steel

Effect of basicity on cementitious activity of modified electric arc furnace steel slag

2019 ◽  
Vol 116 (2) ◽  
pp. 217
Author(s):  
Xiang Lu ◽  
Wenbin Dai ◽  
Xiaoming Liu ◽  
Daqiang Cang ◽  
Liang Zhou
Keyword(s):  
Raman Spectra ◽  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Nonbridging Oxygen ◽  
Arc Furnace ◽  
Polymerization Degree ◽  
Furnace Steel ◽  
Basicity Index ◽  
Cementitious Activity

Electric arc furnace steel slag was modified by wastes in hot-stage process with the aim to improve the cementitious activity. Effect of basicity on cementitious activity of modified steel slag was investigated in this research. The modified slag was characterized by XRD, DTA and Raman spectra techniques to investigate the correlations between structural features and the cementitious activity. The results showed that modified steel slag with a basicity index of 1.67 possessed the highest activity index, 107%, due to the precipitation of Belite, high content of amorphous phase and low polymerization degree. The polymerization degree of modified slag was demonstrated by nonbridging oxygen per tetrahedrally coordinated cations value which was calculated through curve-fitted Raman spectra. The value of modified slag increased as the basicity promoted from 1.05 to 1.67, indicating a lower degree of polymerization. Modified slag with a basicity index of 1.86 possessed the poor cementitious activity mainly because of the significant decrease of glass phase content.

EFFECT OF MOISTURE DAMAGE ON GAP-GRADED ASPHALT MIXTURE INCORPORATING ELECTRIC ARC FURNACE STEEL SLAG AND COPPER MINE TAILINGS

2016 ◽  
Vol 78 (7-3) ◽  
Author(s):  
Mohd Rosli Hainin ◽  
Ebenezer Akin Oluwasola ◽  
Md. Maniruzzaman A. Aziz ◽  
Suleiman Arafat Yeroc
Keyword(s):  
Mine Tailings ◽  
Steel Slag ◽  
Asphalt Mixture ◽  
Moisture Damage ◽  
Electric Arc ◽  
Arc Furnace ◽  
Strength Index ◽  
Copper Mine ◽  
Copper Mine Tailings ◽  
Durability Index

Water damage is a vital factor affecting the durability of gap-graded asphalt. There is an urgent need for a pragmatic and reasonable test to evaluate this parameter. Previous research has proposed that tensile strength ratio is a promising test for this application. Therefore, the aim of this paper is to evaluate the effect of moisture damage on gap-graded asphalt mixture incorporating electric arc furnace (EAF) steel slag and copper mine tailings (CMT). Four material mixtures of eight mix designs were investigated. Each mix was conditioned in water for 24-hour and 48-hour before testing. The study adopted retained strength index (RSI), durability index (DI) and tensile strength ratio (TSR) to describe the durability of gap-graded asphalt incorporating EAF steel slag and copper mine tailings. The results reveal that all the mixes fulfill the prescribed criteria. Also, there is a strong correlation between the retained strength index and the durability index with a strong coefficient of determination, R2 of 0.9543. The results of the study further showed that gap-graded asphalt mixture incorporating EAF steel slag and copper mine tailings did not seem to pose any problem.

Valorisation of electric arc furnace steel slag as raw material for low energy belite cements

2011 ◽  
Vol 196 ◽  
pp. 287-294 ◽  
Author(s):  
R.I. Iacobescu ◽  
D. Koumpouri ◽  
Y. Pontikes ◽  
R. Saban ◽  
G.N. Angelopoulos
Keyword(s):  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Low Energy ◽  
Raw Material ◽  
Arc Furnace ◽  
Furnace Steel

Properties of concrete containing electric arc furnace steel slag and steel sludge

2020 ◽  
Vol 28 ◽  
pp. 101060 ◽  
Author(s):  
Nurul Hidayah Roslan ◽  
Mohammad Ismail ◽  
Nur Hafizah A. Khalid ◽  
Bala Muhammad
Keyword(s):  
Steel Slag ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Furnace Steel
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