A strength prediction model using artificial intelligence for recycling
These dam-disposed tailings destroy mining land resources, pollute the mining environment and cause potential accidents. Therefore, waste tailings are often recycled as cemented paste backfill (CPB) for cleaner production of mineral resources worldwide (Chen et al., 2017, Fall and Benzaazoua, 2005, Helinski et al., 2010, Yilmaz et …
Recycling of tailings from Korea Molybdenum …
aforementioned recycling methods of the tailings should be studied to process the massive tailings from the mill of KMC mine (Park et al. 2009). This study is to investigate the possibility of recycling the tailings from korea (TK) from KMC mine into construction materials such as admixture for high-flowing high-fluidity concrete (HFC). Also,
Recycling spodumene flotation tailings in cement mortar: A …
Abstract. Using industrial by-products as a substitute for conventional natural resources in construction materials is of interest to practitioners of environment preservation and solid wastes management. In this paper, spodumene flotation tailings (SFT) were employed to replace aggregate such as standard sand (SS) to prepare cement mortar.
Reusing copper tailings in concrete: corrosion performance …
1. Introduction. Copper is a highly conductive, durable and multifunctional metal, which has been a very useful material since ancient times. Presently, applications of copper and copper alloy products have grown in building construction, industrial machinery, transportation, general consumer products, telecommunication, electrical …
The Influence of Iron Tailings Powder on the Properties on …
Iron tailings powder (ITP) is a kind of solid waste, which pollutes the environment, without any treatment. The application of ITP in cement concrete is a good choice. In this study, the influence of ITP on the flowability, compressive strength, chloride ion permeability and the attenuation of the performance of cement concrete during …
Investigation of the Mechanical Properties of Iron Tailings Concrete
This research investigates the effects of iron tailings content on the mechanical properties and durability of concrete under dry–wet cycling and negative temperature conditions (−10 °C), where iron tailings replace river sand at rates of 0%, 10%, 20%, and 30%. A variety of tests were conducted on the iron tailings concrete, …
Utilization of molybdenum tailings as fine aggregate in …
The shortage of natural coarse aggregate (NCA) and river sand provides the impetus for the reuse of solid waste. This research provides a cleaner option for the production of recycled aggregate concrete (RAC) from industrial by-product molybdenum tailings (MTs). MTs are used as alternative material to river sand (10%, 30%, 50%, 70% …
A review of the environmental and health implications of recycling …
From the literature review, we identified two main recycling processing methods carried out for the development of construction materials: the mixture of Ordinary Portland Cement (OPC) with mine tailings for the production of concrete-based materials (twenty-eight MTRAs) and alkaline activation, specifically geopolymerization (ten MTRAs).
An evaluation of iron ore tailings characteristics and iron …
The annual concrete production in the world is about 4.4 billion tons. According to the Chatham House Report, the production is estimated to rise to over 5.5 billion tons by 2050. Producing concrete uses a vast quantity of raw materials harvested from the environment because more than 75% volume of concrete is occupied by …
Recycling and Reuse of Mine Tailings: A Review of …
The resulting material can be handled with traditional soil moving equipment to form a stack, for instance. ... and chemical performance [87–89]. The – compressive strength of concrete from iron ore tailings (Figure 2) showed an improvement of 11.56% compared to concrete with conventional aggregates, showing that it is possible to obtain ...
Mechanical and Electroconductivity Properties of Graphite Tailings Concrete
Partial replacement of graphite tailings by building sand is one of the effective ways to reuse solid waste resources. The mechanical and conductivity properties and micro- and mesoscopic structures of graphite tailings concrete have been investigated in this paper. The following conclusions can be drawn from this study: (1)
Recycling of Waste Iron Tailings by Biomineralization for …
Numerous waste iron tailings worldwide require eco-friendly treatment methods, with biotechnology being a promising option. However, bacteria survival in cemented paste backfill has been a persistent challenge. This study presents a method that adjusts the cementing solution composition (e.g. urea and calcium ions) to enhance …
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 …
Effects of HPMC on Workability and Mechanical Properties of Concrete
Iron ore tailings (IOTs) are gradually used as building materials to solve the severe ecological and environmental problems caused by their massive accumulation. However, the bulk density of IOT as aggregate is too large, which seriously affects the concrete properties. Therefore, in this paper, the effect of hydroxypropyl methylcellulose …
Recycling | Free Full-Text | Use of a Design of Experiments …
The extraction of precious minerals leaves behind an important amount of tailings. When stored in nature, these tailings contribute to environmental degradation. To reduce this degradation, tailings are incorporated in construction as substitute to natural materials. The objective of this study was to use a design of experiments (DOE) to reveal …
Preparation of Mineral Admixture from Iron Tailings with …
Iron tailing solid waste not only has a high annual output but also has a low comprehensive utilization rate. Low utilization rate of iron tailings seriously restricts the development of comprehensive utilization of solid waste. In order to prepare an iron tailings-based ternary solid waste admixture and to verify its application to concrete, …
Tailings Dewatering, Thickening & More
We're All About The Process - Since 1984. PHOENIX Process Equipment Company, based in Louisville, KY, United States is a privately-owned equipment supplier for the aggregates, mining, industrial, wastewater, and water recycling industries. For over 40 years, we've been considered an expert in liquid/solid separation and residual …
AI-assisted design of low-carbon performance
Artificial data generation. Two methods were developed to generate new data (Generative AI) Method 1: Use established theories or equations. = 6.6 ln − 10.7. where cu is tensile strain capacity; Lf is the fiber length; df is the fiber diameter; and Vf is the fiber content.
Dewatering & Liquid Solid Separation | PHOENIX Process Equipment
PHOENIX supplies a variety of high-quality equipment solutions for dewatering, classification, thickening, water clarification, water recycling and more. ... thickening, water clarification, water recycling and more. 502-499-6198. Call PHOENIX at +1-502-499-6198. About; Markets. Aggregate. Aggregates, Stone and Gravel, Reclaimed Concrete ...
Recycling and Reuse of Mine Tailings: A Review of
This review paper explores available literature on the main technique s. of mining tailing recycling and reuse and discusses leading technologies, including the benefits and. limitations, as well ...
Research Progress of Molybdenum Tailings Resources Recycling …
20. Molybdenum minerals as an important industrial minerals,it has been one of our country traditional advantage minerals.The main application field is the steel,other alloy field and chemical field.It occupies an important position in the whole world and acts an support role to the economy.As a kind of available resources,molybdenum tailings ...
Materials | Free Full-Text | Research on Recycling of …
AMA Style. Xiao Y, Ju X, Li C, Wang T, Wu R. Research on Recycling of Phosphorus Tailings Powder in Open-Graded Friction Course Asphalt Concrete.
Buildings | Free Full-Text | Effect of High Temperatures on
Due to the high prices, the popularity of radiation shielding concrete (RSC) has been greatly limited. To solve this, this research reused the lead–zinc tailings (LZT) as a fine aggregate replacement ranging from 0% to 60% for the RSC. The results revealed that the RSC containing 30% LZT presented better workability and achieved 95.84% of …
Study on mechanical properties of macro
Macro-synthetic fiber-reinforced iron ore tailings (IOT) concrete is an environment-friendly building material featured by recycling IOT and improving performance of IOT concrete due to fiber incorporation. In this study, the mechanical properties of macro-synthetic fiber-reinforced concrete incorporating IOT were …
Systematic review of mixing technology for recycling waste tailings …
The development of industry is inseparable from the support of mining. However, mining processes consume a large amount of energy, and increased tailing emissions can have a significant impact on the environment. In the past few decades, the mining industry developed many technologies that are related to mineral energy …
Development of eco-efficiency concrete containing
The concrete containing 75% tailings and 15% diatomite is a good plan for protecting the environment and sustainability. Furthermore, the prediction accuracy of the developed CNN is higher than that of the design code expressions. ... Tailings are produced from recycling industrial by-products. ... is a representative machine learning …
Damage evaluation of concrete using iron ore tailings as …
Using iron ore tailings (IOTs) as the main aggregate for concrete will not only save crushed stone mining but will also reduce the environmental impact of IOTs. A discrete element model of concrete with realistic IOTs shape was developed using particle flow coding 3D technique. The accuracy of the numerical model was verified with the …
Recycling waste tyre polymer for production of fibre …
The raw materials used here include cement, tailings, fibres, thickener, and mixing water. Commercial PO 42.5R ordinary Portland cement (OPC) was employed as the hydraulic binder, and its particle size distribution is given in Fig. 1 (a).The specific surface area (BET) and fines content (<20 μm) of OPC are 5808 cm 2 /g and 66.3 %, …
Effect of wet copper tailings on the performance of high …
1. Introduction. The increasing global demand for copper has resulted in the generation of enormous amounts of copper tailings (CTs), which are the primary by-products of copper smelting [1, 2].Since copper constitutes a very small percentage of copper ore, for instance, only 0.85%, most of the copper ore is ultimately converted into …
The Composition and Performance of Iron Ore Tailings in …
Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilization. This study investigates how blending steel slag with IOTs (a siliceous raw material) instead of lime (a calcareous raw material) affects slurry ing properties, …