Experimental Study on the Performances of Cement Stabilized Iron Ore Tailing Gravel in Highway Application

Iron ore tailings as a kind of waste products after ore dressing is one of the major industrial solid wastes. Iron ore tailings not only cover huge land and pollute environment, but also give rise to security risks. The comprehensive utilization of iron ore tailings need to be studied systematically. According to the method in Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering, the technical performances of cement stabilized iron ore tailing gravel in highway application were studied by systemic experiments in this paper. These include the strength, modulus, and frost resistance property, water stability. And the influencing factors of the mixture strength were analyzed, too. The results show that the mixture of cement stabilized iron ore tailing gravel has higher strength and modulus, good frost resistance property and water stability. The technical performances of cement stabilized iron tailing gravel conform to the current specification, so it can be used as sub-base course or base course material.

Download Full-text

The Research on the Application of the Steel Slag Produced by the Converters of Jigang Group Co. Ltd on Base Course

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.178-181.1699 ◽

2012 ◽

Vol 178-181 ◽

pp. 1699-1705

Author(s):

Fa Liang Lu ◽

Jin Li

Keyword(s):

Mechanical Property ◽

Unconfined Compressive Strength ◽

Steel Slag ◽

Coal Ash ◽

Strength Test ◽

Water Stability ◽

Compressive Strength Test ◽

Base Course Material ◽

Course Material ◽

Base Course

To test and inspect the chemical compositions and mechanical properties of the steel slag produced by the converters of Jigang Group co. ltd, and study the feasibility of using the steel slag as base course material. Prepare cement stabilized steel slag specimens with different contents of cement mixed for the unconfined compressive strength test. Determine through test its strength after 7 days and 28 days and its water stability after 7 days’ soaking. Prepare in the same method of two different kinds of cement and coal ash stabilized specimens with different contents of coal ash mixed for the unconfined compressive strength test, to test its strength and water stability. The comparison on mechanical property with cement stabilized macadam indicates that the cement stabilized steel slag and cement with coal ash stabilized steel slag both have favorable mechanical property and water stability and the steel slag produced by the converters of Jigang Group co. ltd can be popularized for use as base course material.

Download Full-text

Design and Construction Analysis of Cement-Stabilized Macadam Foundation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.340.80 ◽

2013 ◽

Vol 340 ◽

pp. 80-84

Author(s):

Deng Lin

Keyword(s):

Mechanical Property ◽

Frost Resistance ◽

Water Stability ◽

Good Mechanical Property ◽

Control Methods ◽

Mechanical Theory ◽

Cement Stabilization ◽

Base Course ◽

Pavement Base ◽

Design And Construction

Cement-stabilized macadam has good mechanical property, but also has the advantages of plate nature, water stability and frost resistance, and it is widely used in the pavement base or sub-base course of expressway. Based on the fundamental mechanical theory of the strength and the global stability of cement stabilization macadam, this article discusses how to design the grading of the cement stabilization macadam and the influencing factors, besides, it also presents the construction control methods of the cement stabilization macadam, which is of guiding significance to the design and construction of the cement stabilization macadam.

Download Full-text

Iron Ore Tailings: Characterization and Applications

Journal of the Brazilian Chemical Society ◽

10.21577/0103-5053.20210100 ◽

2021 ◽

Author(s):

Ottávio Carmignano ◽

Sara Vieira ◽

Ana Paula Teixeira ◽

Fernando Lameiras ◽

Paulo Roberto Brandão ◽

...

Keyword(s):

Iron Ore ◽

Ceramic Industry ◽

Physicochemical Characterization ◽

New Materials ◽

X Ray Diffraction ◽

X Ray ◽

Iot Applications ◽

Iron Ore Tailings ◽

Iron Ore Tailing

Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application of two typical IOT, i.e., fine and coarse wastes. The physicochemical characterization of these IOT by different techniques such as XRF (X-ray fluorescence), XRD (X-ray diffraction), Mössbauer spectroscopy, and granulometry, indicates for the fine tailing a composition of Fe2O3/FeOOH (10-55%), SiO2 (18-65%) and Al2O3 (up to 15%) with particles of 6-40 μm, whereas the coarse tailing presents 40-150 μm particles with the composition of 8-48% Fe2O3/FeOOH, 30-90% SiO2 and Al2O3 (up to 20%). The main IOT applications discussed in this review are related to civil construction (aggregates for concrete, mortar, Portland cement additives), ceramic industry, geopolymer, synthesis of new materials such as zeolites, mesoporous silica, carbon nanotubes, adsorbents, catalysts for different reactions, in batteries and in fuel cells. It was also carried out an analysis of patents related to IOT applications and the main technological and market barriers that hinder the industrial and commercial uses of these wastes.

Download Full-text

Preparation of Eco-Friendly Composite Ceramic from Iron Ore Tailings

Materials Science Forum ◽

10.4028/www.scientific.net/msf.610-613.281 ◽

2009 ◽

Vol 610-613 ◽

pp. 281-284 ◽

Cited By ~ 4

Author(s):

Ming Liu ◽

Li Hua Xu ◽

Xiao Meng Zhang ◽

Hong Shun Hao ◽

Yun Ping Di

Keyword(s):

Iron Ore ◽

Orthogonal Design ◽

Composite Ceramic ◽

Holding Time ◽

Optimal Parameters ◽

X Ray Diffraction ◽

Recycling Process ◽

X Ray ◽

Iron Ore Tailings ◽

Iron Ore Tailing

In this paper, the research mainly focused on utilization of iron ore tailing of Panzhihua region. Based on the analysis of its components, Carbothermal Reduction Nitridation (CRN) method was selected to synthesize eco-friendly composite material. Different additives were tried to improve the property of the samples. The influence of different sintering temperature, holding time and contents of additives were taken into account, and orthogonal design was employed to obtain the optimal parameters. It indicated that only when the temperature was 1450°C and the holding time was 5 hours, the samples with the bulk density of 3.42g/cm3 was obtained. The phase and surface morphology were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Experimental results showed that the phases of the product were Fe3Si and TiC0.3N0.7. The research provided a novel recycling process for ore tailings.

Download Full-text

Connotation of Iron Ore Tailings Comprehensive Utilization

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.733.13 ◽

2015 ◽

Vol 733 ◽

pp. 13-16

Author(s):

Yu Feng Li ◽

Xiao Yu Wang ◽

Jing Ling Bao ◽

Jin Rui Zhang

Keyword(s):

Iron Ore ◽

Sustainable Utilization ◽

Comprehensive Utilization ◽

Iron Ore Tailings ◽

Iron Ore Tailing ◽

Integrated Utilization

This paper concludes what the comprehensive utilization of iron ore tailings is through analysis, and in order to develop and use the iron ore tailings, comprehensive utilization of iron ore tailings shall be the precondition of the iron ore tailing integrated utilization; comprehensive utilization means efficient, clean, and sustainable utilization; which can guiding the development and use of iron ore tailings.

Download Full-text

The Influences of Iron Ore Tailings as Fine Aggregate on the Strength of Ultra-High Performance Concrete

Advances in Materials Science and Engineering ◽

10.1155/2015/412878 ◽

2015 ◽

Vol 2015 ◽

pp. 1-6 ◽

Cited By ~ 8

Author(s):

Zhigang Zhu ◽

Beixing Li ◽

Mingkai Zhou

Keyword(s):

Particle Size ◽

Frost Resistance ◽

High Performance ◽

Iron Ore ◽

High Performance Concrete ◽

Fine Aggregate ◽

Ultra High Performance Concrete ◽

Iron Ore Tailings ◽

Better Than

The present study looks for the feasibility of preparing UHPC with iron ore tailings (IOT for short) as fine aggregate. To enhance outstanding high performances, some influences on UHPC mortars were investigated such as different kinds of sands, different mix ratio of sands, and different largest particle size of fine aggregate. The results show that IOT have negligible poorer aggregate performance than silica sands but better than river sands. The strength of UHPC reaches the highest point when silica sands were instead 60% by IOT. As the largest particle size of fine aggregate is decreasing, the strength and frost resistance of UHPC were improved, but the liquidity was decreased. Micropowder of IOT affects the strength and the optimal content was 4%.

Download Full-text

Application of Small Molecular Inhibitors in Reconcentration of Iron Ore Tailings

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.402.552 ◽

2011 ◽

Vol 402 ◽

pp. 552-555 ◽

Cited By ~ 1

Author(s):

Wen Gang Liu ◽

De Zhou Wei ◽

Cong Han ◽

Bao Yu Cui

Keyword(s):

Hydrogen Bonding ◽

Iron Ore ◽

Quartz Surface ◽

Effective Inhibitor ◽

Iron Ore Tailings ◽

Measurement Results ◽

Iron Ore Tailing ◽

Organic Inhibitors ◽

Small Molecular Inhibitors ◽

Iron Grade

Application of small molecular inhibitor in reconcentration of iron ore tailing by direct flotation are discussed. From the results, it can be seen that organic inhibitors are more effective than inorganic inhibitors. When sodium hexametaphosphate and sodium silicate are used as inhibitor, iron grade in concentrates is no more than 30%. However, when organic inhibitors are used as used, iron grade in concentrate are more than 30%. And 2,4-dibydroxy-benzoic acid is the most effective inhibitor to depress quartz. When it is used, iron grade in concentrate is more than 35%. Measurement results of infrared spectrum show that hydrogen bonding adsorption occur between inhibitor and quartz surface.

Download Full-text

Study on Production of Burning-Free Brick Using Chinese Kuancheng Iron Ore Tailings

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.511.146 ◽

2012 ◽

Vol 511 ◽

pp. 146-149 ◽

Cited By ~ 2

Author(s):

Xiao Yu Zhou ◽

Yi Zhong Yu ◽

Shao Xian He ◽

Qing Li

Keyword(s):

Compressive Strength ◽

Blast Furnace ◽

Blast Furnace Slag ◽

Iron Ore ◽

Raw Material ◽

Iron Ore Tailings ◽

Iron Ore Tailing ◽

And Performance ◽

Optimum Formula ◽

Furnace Slag

Based on the analysis of components of Chinese Kuancheng iron ore tailings, burning-free brick test block were produced using local iron ore tailings and blast furnace slag as raw material, portlant cement as mineral glue, and parget as mineral activator. The optimum formula and production process were obtained with experiment of compressive strength of test blocks. The optimum ratio of iron ore tailing to blast furnace slag is between 5:5 and 6:4, parget composition is between 6% and 8%, and cement usage can be reduced to 10%. After curing, burning-free brick compressive strength of 17.5Mpa can be reached without sandiness phenomenon, and performance far exceeds the M10 burning-free brick standards. The formula of burning-free brick proposed in this paper can solve the problem of mineral waste pollution in Kuancheng area

Download Full-text

Study on Properties of Concrete with Iron Ore Tailing and Glass Waste

Journal of Modern Materials ◽

10.21467/jmm.8.1.30-39 ◽

2021 ◽

Vol 8 (1) ◽

pp. 30-39

Author(s):

KS Sushmitha ◽

P Dhanabal

Keyword(s):

Tensile Strength ◽

Flexural Strength ◽

Water Absorption ◽

Iron Ore ◽

Glass Powder ◽

Splitting Tensile Strength ◽

Fine Aggregate ◽

Content Increase ◽

Waste Products ◽

Iron Ore Tailings

The aim of this research is to test the characteristics of concrete by substitute fine aggregate with iron ore tailings and partial glass powder as in the place of cement. Concrete with waste products such as glass powder and iron ore tailings offer technical, economic and environmental advantages. In this experimental investigation, glass powder is replaced with cement by 10%, 20% and 30% and iron ore tailings with fine aggregates by 30% which is the optimum percentage. To study the role of glass powder and iron ore tailings combination in concrete. The properties such compressive strength, flexural strength, tensile strength and also durability parameters likely water absorption investigation for M40 concrete is carried out with different percentages of glass powder by keeping the iron ore tailings percentage constant. At 30% glass powder substitution as cement and sand with IOT increases concrete effectiveness. The concrete with 10% glass powder & 30% iron ore tailings showed a higher strength compared to the conventional mix for 28 days. Concrete mix containing 10% GP and 30% IOT showed higher flexural strength of 5.05 MPa for 28 days. Splitting tensile strength value is also increasing i. e for 10% glass powder and 30% IOT, obtained splitting tensile strength was 4.48 MPa and modulus of elasticity value was has also increased. Water absorption experiment consequences results that water absorption decreases with an increase in GP percentage. The concrete workability tends to decrease when with glass powder content increase. Concrete containing 10% glass powder and 30% IOT showed maximum strength and it is considered as the optimum dosage.

Download Full-text