Effect of Iron Ore Tailing and Glass Powder on Concrete …
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 ...
Stabilization of iron ore tailings with cement and bentonite: …
Test results reveal that the introduction of cement/bentonite to iron ore tailings requires higher water content for optimum compaction and results in lower dry density. The addition of bentonite increases the unconfined compressive strength (UCS) very little, whereas there is a great strength enhancement for tailing-cement mixtures ...
Evaluation of the Iron Ore Tailings from Itakpe in Nigeria as Concrete …
Characterization of the Itakpe iron ore tailings showed that it has pozzolanic properties, and can be used as a retarder for hot-weather concreting, and could be used to predict relationships of IOT-OPC concrete. An evaluation of the Itakpe iron ore tailings (IOT) for concrete production has been carried out using the material to replace sand …
Strength and Microstructure of Concrete with Iron Ore …
4 2.1 Test method The slump value, compacting factor value and concrete density of the fresh concrete were determined according to standard specification of BS EN 12350-2 [7], BS 1881-103 [8] and
Strength and Microstructure of Concrete with Iron Ore …
Percentage passing (%) Description OPC (kg/m3) Coarse aggregate (kg/m3) Natural sand (kg/m3) Iron ore tailings (kg/m3) Water (kg/m3) Superplastiizer (%) Slump (mm) Compaction factor Concrete fresh density (kg/m3) 100 90 80 70 60 50 40 30 20 10 0 2390 M0 380 1009 761 230 0.5 130 0.94 2440 2410 Proportion of IOT's M25 M50 M75 380 …
Development of sustainable concrete using iron ore tailings as sand
The increasing demands for iron ore worldwide have resulted in the generation of billion tonnes of iron ore tailings (IOT) which were found in all the iron ore mining industries. Rapid increase in consumption of river sand due to the increased in construction activities over exploited the riverbeds. This has led to a range of problems which include: depletion …
An evaluation of iron ore tailings characteristics and …
Evaluation of industrial byproduct iron ore tailings and carbon fiber cement-based materials under sulfate freeze-thaw cycles: Durability, piezoresistivity, and …
Utilization of Iron Ore Tailings as Raw Material for Portland Cement …
The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate raw material for the production of Portland cement clinker. For this purpose, two …
Evaluation of the Iron Ore Tailings from Itakpe in …
Evaluation of the Iron Ore Tailings from Itakpe in Nigeria as Concrete Material. Characterization of the Itakpe iron ore tailings showed that it has pozzolanic …
Enhancing sustainability in concrete: synergistic effects of
The construction industry is affected due to a shortage of river sand, besides, the production of cement releases large amounts of CO2 into the atmosphere which leads to global warming. There is an imperative to identify viable replacements for river sand and cement. Various industrial by-products have been used in earlier studies …
Strength and Microstructure of Concrete with Iron Ore …
IOT is a waste product generated from the production of iron ore and disposed to land fill without any economic value. Concrete mixtures containing different amount of IOT were designed for grade C30 with water to cement ratio of 0.60. The percentage ratios of the river sand replacements by IOT were 25%, 50%, 75% and .
Evaluation of the Iron Ore Tailings from Itakpe in …
Request PDF | On Jan 1, 2014, Elinwa Augustine Uchechukwu published Evaluation of the Iron Ore Tailings from Itakpe in Nigeria as Concrete Material | Find, read and cite all the …
2017 2018 Minerals Yearbook
27 of Nigeria's 36 States; sand for construction, in 26 States; ... metallurgical test work at its Agbaja iron ore project in . 31.2 [aDVaNCe reLeaSe] U.S. GEOLOGICAL SURVEY …
Evaluation of the iron ore tailings from Itakpe in Nigeria …
Ajaokuta Steel Company, Nigeria. The iron ore is ferruginous quartzite deposit of geological reserve amounting to 200 million tones and the tailings are the by-product from the manufacture of iron ore. The cement used is the Ashaka Portland cement, which conforms to BS 1881 [9]. The physical and chemical
Investigation of Compressive Strength of Concrete from Cement and Iron …
The above steps were carried out for the three RESULTS brands of cement and also for the mixture of the Itakpe Tables -1 and 2 shows the result obtained for Iron Ore tailings, cement, and aggregates in ratio 0.25: different sizes of …
Reliability Assessment of Bearing Capacity of Cement–Iron Ore …
A reliability estimate of bearing capacity values of cement–iron ore tailing treated black cotton soil was evaluated using a predictive model developed from laboratory results for specimens compacted at British Standard light, West African standard and British Standard heavy energy levels. Laboratory based geotechnical properties of the treated …
Effect of Iron Ore Tailing on the Properties of Concrete
Nigeria. Post code: 970001 2.Department of Civil Engineering, Ahmadu Bello University Zaria, Kaduna state. Nigeria Post code: 810001 ... This research is interested in the use of iron ore tailing as sand in concrete and mortar. The global ... Table 1 Comparison of results of Cement tests with Code specifications
An evaluation of iron ore tailings characteristics and …
Iron tailings sand had a more significant influence on the water permeability of concrete than iron tailings rock. When iron tailing sand and iron tailings rock …
Ultra-high-performance concrete with Iron ore tailings and …
In this regard, silica fume was used along with nano silica as a partial replacement for cement. İron ore tailings and M-Sand were used in different proportions along with river sand. To enhance the ductile properties, natural fibers such as basalt fiber and synthetic fibers namely polypropylene and glass fibers, were used in hybrid mode …
Evaluation of the Iron Ore Tailings from Itakpe in …
Nigerian Building and Road Research Institute, Plot 449, Ogedengbe Crescent, Jabi, Abuja, Nigeria. An evaluation of the Itakpe iron ore tailings …
cement sand and iron ore testing in nigeria-HOW MUCH …
MF 182 6 Properties and Uses of Iron and Steel SlagNigeria Solid Minerals in Nigeria an Overview I. PROPERTIES AND USES OF IRON AND STEEL is defined by the American Society for Testing and Materials primarily of the impurities from the iron ore Mar 02 32 Nigeria Solid Minerals in Nigeria an Clay and Iron Ore FEDERAL CAPITAL Recycled …
Evaluation of the Iron Ore Tailings from Itakpe in Nigeria as Concrete …
An evaluation of the Itakpe iron ore tailings (IOT) for concrete production has been carried out using the material to replace sand and cement, in proportions of 5 % up to 30 %, and curing for periods 90 days in water. Characterization of the material showed that it has pozzolanic properties, and can be used as a retarder for hot-weather …
Study on water-repellent and corrosion-resistant properties of cement …
1. Introduction. Iron ore tailings (IOTs) are solid wastes after beneficiation [1], accounting for nearly 1/3 of the total tailings [2].It is reported that the recycling utilization rate of IOTs is only 7% [3].A large amount of IOTs are stored in tailings dams, which increases the cost of land occupation and leads to environmental degradation [4].In …
Use of iron ore tailings as partial replacement for cement on
Ling et al. [72], when using iron ore tailings to replace sand in 10%, 20%, and 30% by mass to prepare high-performance ecological concrete, ... Stress-strain curves of fiber-cement obtained by bending test of treatments with 0%, 10%, and 40% of IOT ns P value not significant at 5% significance level. *P significant value at 5% significance level.
Strength and Microstructure of Concrete with Iron …
IOT is a waste product generated from the production of iron ore and disposed to land fill without any economic value. Concrete mixtures containing different amount of IOT were designed for grade C30 with water to cement ratio of 0.60. The percentage ratios of the river sand replacements by IOT were 25%, 50%, 75% and .
Evaluation of the iron ore tailings from Itakpe in …
Abstract: An evaluation of the Itakpe iron ore tailings (IOT) for concrete production has been carried out using the material to replace sand and cement, in …
Recovering Iron from Iron Ore Tailings and Preparing Concrete …
Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process involving pre-concentration followed by direct reduction and magnetic separation. Then, slag-tailing concrete composite admixtures …
Cement Testing: Types, Methods & Equipment
Type IS: Portland-Slag Cement contains 25% to 70% blast furnace slag products by weight. Type IP: Portland-Pozzolan cement Includes coal ash and silica fume waste materials. Type IL: Portland-Limestone Cement has added calcium carbonate and gypsum and reduces the amount of carbon dioxide released during production.
Investigation of Compressive Strength of Concrete from Cement and Iron
The test results show that iron tailings powder is beneficial to improve the workability, and the strength of concrete decreases with the increase of iron tailings powder content, while the ...
Iron ore Import From Nigeria- Minimum Order, prices and …
Iron ores are rocks from which metallic iron can be economically extracted. Iron ore rocks are usually found in the form of hematite (Fe2O3) or magnetite (Fe3O4). About 98% of world iron ore production is used to make iron in the form of steel. Although iron in cast form has many specific uses (e.g. pipes, fittings, engine blocks), its main use ...
