scholarly journals Utilization of Iron Ore Mines Waste as Civil Construction Material through Geopolymer Reactions

2020 ◽  
Author(s):  
Pranab Das ◽  
Beulah Matcha ◽  
Nabil Hossiney ◽  
Mothi Krishna Mohan ◽  
Anirban Roy ◽  
...  
Keyword(s):  
Iron Ore ◽  
Construction Material

scholarly journals Iron ore tailings in the production of cement tiles: a value analysis on building sustainability

2018 ◽  
Vol 18 (4) ◽  
pp. 395-412 ◽  
Author(s):  
Wanna Carvalho Fontes ◽  
Giovanni Gonçalves Fontes ◽  
Ellen Cristine Pinto Costa ◽  
Julia Castro Mendes ◽  
Guilherme Jorge Brigolini Silva ◽  
...  
Keyword(s):  
Iron Ore ◽  
Construction Material ◽  
Local Identity ◽  
Value Analysis ◽  
Social And Emotional ◽  
A Value ◽  
Iron Ore Tailings ◽  
Dissolution Tests ◽  
Technical Evaluation ◽  
The Relationship

Abstract The present work discloses the development of a sustainable cement tile (SCT) produced with Iron Ore Tailings from tailings dams (IOT). Initially, technical evaluation and environmental analysis of IOT were performed through physical, chemical and morphological characterisation, leaching and dissolution tests. Its feasibility as a pigment was also investigated. Subsequently, the value analysis was performed, starting from an empathy map to a study on environmental, social and emotional values in the relationship between people and product. As result, the IOT presented fine, crystalline particles, no toxicity, and is technically feasible to be employed as filler, aggregate and pigment in the production of SCT. The colour layer of the SCT presented more homogeneous colour and less pores than conventional ones. Therefore, the design of the SCT was developed, incorporating intangible values such as: environmental ideology, local identity and social expression. In this sense, the present work seeks to assist in the decision-making process involving IOT as construction material.

scholarly journals Effect of Elapsed Time after Mixing on the Strength Properties of Lime–Iron Ore Tailings Treated Black Cotton Soil as a Road Construction Material

2020 ◽  
Vol 5 (11) ◽  
pp. 89
Author(s):  
Annafi Qaudri Babatunde ◽  
Eberemu Adrian Oshioname ◽  
Yohanna Paul ◽  
Osinubi Kolawole Junwolo
Keyword(s):  
Iron Ore ◽  
Construction Material ◽  
Base Material ◽  
Road Construction ◽  
Strength Properties ◽  
Black Cotton Soil ◽  
Soil Parameters ◽  
Dry Density ◽  
Elapsed Time ◽  
Iron Ore Tailings

The study evaluated the effect of elapsed time after mixing on the strength properties of lime and iron ore tailings (IOT) treated black cotton soil (BCS) (an expansive tropical black clay) as road construction material. BCS was treated with 0, 2, 4, 6, and 8% lime and 0, 2, 4, 6, 8, and 10% IOT content by dry weight of soil. Tests carried out include Atterberg limits, compaction, unconfined compressive strength (UCS), California bearing ratio (CBR) (unsoaked condition), and microstructure of specimens. Statistical analysis was done using MINI-TAB software. Results show that the liquid limit (LL) of BCS–lime–IOT mixtures decreased with increase in lime and IOT content. The LL values of all the treated BCS increased between 0 and 1 h elapsed time after mixing. On the other hand, the plastic limit (PL) of BCS decreased with increase in lime and IOT content while the plasticity index (PI) decreased from 27.7 to 22.9% for 0% lime/0% IOT content and from 30.6 to 26.6% for 0% lime/10% IOT content. Maximum dry density (MDD) of BCS increased while optimum moisture content (OMC) decreased with higher IOT content. The natural BCS recorded OMC value of 25.6% decreased to 15.2% for 8% lime/10% IOT treatment. The strength (i.e., UCS and CBR values) increased with increase in lime/IOT contents between 0 and 2 h elapsed time after mixing. Peak values were recorded for 8% lime/8% IOT treatment for all lime content considered. Regression analysis shows a strong relationship between the strength properties and the soil parameters. An optimal 8% lime/8% IOT treatment of BCS for elapsed time after mixing not exceeding 2 h was established and is recommended as sub-base material for low-trafficked roads.

Humid iron-ore mass dehydration in the field of combined physical forces

2017 ◽  
pp. 105-114
Author(s):  
V.P. Nadutyi ◽  
◽  
V.V. Chelyshkina ◽  
S.V. Kostyria ◽  
◽  
...  
Keyword(s):  
Iron Ore ◽  
Physical Forces

Radioecology deposits of ferruginous quartzite of Kremenchug iron ore basin

2016 ◽  
Vol 17 (1(17)) ◽  
pp. 3-8
Author(s):  
A.V. Plotnikov ◽  
◽  
V.V. Efimenko ◽  
O.V. Yaremenko ◽  
◽  
...  
Keyword(s):  
Iron Ore ◽  
Ferruginous Quartzite
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