No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
The rapid increase in world population in the last century has generated an ever-growing production of municipal solid waste (MSW). Thousands of tonnes of MSW are produced each year – in 2012, this number reached 1.3 billion tonnes, while 2.2 billions are expected to be produced in 2025 (Hoornweg and Bhada-Tata, 2012).A common treatment of solid waste …
The huge demand for sand and gravel resources in road engineering construction leads to excessive consumption of resources and environmental damage. Recycling waste concrete and industrial solid waste as a road material is a promising alternative. In order to explore the application of these solid wastes in the road base, this paper studies the effect of …
High iron bauxite (IRB), red mud (RM), and fly ash (FA) are resources rich in iron and alumina, yet there are no effective methods of recovering and utilizing them. In this paper, a new reduction smelting technology for the extraction of iron and alumina from IRB, RM, and FA is proposed based on the technology platform of "Slag Metallurgy, Mineral Recycling, and …
Incineration plants for urban waste produced 167,310 t of IBA, fly ash and hazardous waste (EER 190111*, 190113* and 190115*) and 1,076,515 t of IBA and non-hazardous slag (EER 190112, 190114 and 190116) consisting of 74% non-hazardous IBA, 14.8% hazardous waste from fume abatement processes and 11.2% fly ash, IBA and hazardous slag (data 2019).
The fly ash utilized is sourced from coal-fired power plants in the Philippines and is mixed into the concrete as a mineral admixture at the concrete production plants.
A novel process for the production of angular-shaped high strength fly ash aggregates from an energetic, and environmental perspective is presented in this paper and compared with the production of natural aggregates. This study is significant because there is an increasing demand for aggregates and no published research addressing the environmental …
Four kinds of waste materials from Serbian power plants were laboratory tested: (a) an ash-slag mixture from landfills at the 'Nikola Tesla A' thermal power plant; (b) fly ash from silos in ...
A 40% fly ash replacement with BOF slag resulted in an average strength that was 39% higher than the combination with fly ash. However, the strength growth decreased after a 10% replacement. Analysis of variance was conducted using the design of experiments methodology to determine the significance of the parameters and their interactions.
To address these concerns, this study investigates the use of fibre-reinforced self-compacting concrete (FR-SCC) with high-volume fly ash (HVFA) and varying levels of recycled concrete aggregates (RCA) as substitutes for …
Application of municipal solid waste incineration (MSWI) products - fly ash (MSW-FA) and bottom ash (MSW-BA), is increasingly popular, mostly due to the need to reintroduce …
One-part geopolymer concrete/mortar is a pre-mixed material made from industrial by-products and solid alkaline activators that only requires the addition of water for activation. Apart from being environmentally friendly, it also reduces complexity and improves consistency in the mixing process, leading to more efficient production and consistent material properties. …
Fly ash is a group of materials that can vary significantly in composition. It is residue left from burning coal, which is collected on an electrostatic precipitator or in a bag house. It mixes with …
It is known that cement production, including CaCO 3 calcination and clinker production, is associated with high energy consumption and the emission of a considerable amount of greenhouse gas. The amount of CO 2 released in the production of cement is about one ton for each ton of cement clinker. Almost 8% of the global emission of CO 2 is produced …
Geologia Croatica 320 Geologia Croatica 69/3 cal properties of the ash and slag. Sample humidity was examined according to the standard EN 1328-1, the solid particles volume
The method of using incineration products in concrete production is explored in this paper through a feasibility study of utilizing fly ash and slag to replace cement and coarse …
This study highlights that recycling fly ash into lightweight aggregate reduces environmental impacts, provides economic benefits, and is a better alternative to landfilling …
The use of recycled concrete aggregate with controlled substitution of cement by GGBS and fly ash powder presents a promising approach that combines sustainability, …
PDF | On Jan 1, 2004, Nabil Bouzoubaâ and others published Use of Fly Ash and Slag in Concrete: A Best Practice Guide | Find, read and cite all the research you need on ResearchGate
China has ranked first in the coal fly ash emission in the world. The multipurpose use of the fly ash from power plant waste is always an important topic for the Chinese environmental protection, which has drawn the concern of the government, scientific research departments, manufacturing enterprises and industry experts. This paper introduces an …
Using a cement fly ash gravel column for supporting embankments constructed on soft clay was more effective than using a soil-cement column and granular pile to enhance column-bearing capacity and the overall stability, reduce settlement and accelerate the consolidation process of the improved soft clay due to higher strength, stiffness, and ...
Typically, the raw materials for producing FRCC include: OPC, sand, fibers, filler, additives, and water. Passakorn et al. [29], [30] studied the potential of utilizing chemically treated coal bottom ash as a feasible alternative to sand in FRCC production. The results showed that replacing sand with chemically treated bottom ash in FRCC could be achieved without …
In addition to various pollutant gases, viz. SO x and NO x, fly ash forms a major part of the exhaust gases from coal-based thermal power plants and if not managed properly may result in significant environmental pollution (He et al. 2012).This is due to the presence of various heavy metals, e.g., As, Ba, Cr, Se, Hg, etc., and adsorbed or deposited organic compounds …
- ed Blast Furnace Slag (FBS) - Fly Ash Aggregate - Manufactured Sand - Polystyrene Aggregate (PSA) - Expanded Clays, Shales and Slates ... concrete production. RCA should not have greater than 0.5% brick ... The locations of recycling plants are depending on where the structures are demolished. The recycling process is often
This study investigates the alterations in the ratios of components such as class C fly ash (FA), blast furnace slag (BFS), and waste stone powder (WSP) types of limestone powder (LP) used in the production of geopolymer concrete. These components are meticulously examined concerning the physical and mechanical attributes of geopolymer concrete. Using …
It is thus confirmed that fly ash and slag generated by waste incineration can be used to replace cement and coarse aggregate in appropriate proportions, and it is an effective method to solve...
The generation of slag and fly-ash is so high during production of iron and steel. Accumulation of these waste materials is now becoming a major concern. ... with waste material from steel plants ...
blast furnace plants slag chemical industry caustic solutions with solids coal fired power stations bottom ash hard coal mining raw coal hard coal washeries heavy media with solids phosphate plants phosphate ore potassium & salt industry potassium salts, kieserite, salts quartz & gravel plants gravel, sand refuse incineration non-combustible ...
Understanding Slag and Fly Ash. Before we compare slag vs fly ash, let's first understand what they are. Slag is a byproduct that results from the smelting process of various ores, such as iron, copper, and lead. When these ores are heated to extract the desired metal, slag is formed as molten, which is later cooled and solidified.
The fly ash processing plant produced by AGICO includes a ball mill grinding system, conveying system, dust collecting system, ash classifying system and ash storing system. It helps our customers realize reasonable solid waste recycling and utilization.
The implementation of the process proposed in this research work could lead to economic savings in different areas: 1) a cost saving for the deposit of fly ash in a hazardous waste landfill estimated at 274 EUR per ton of fly ash (according to Spanish local data); 2) an economic profit from the sale of germanium (EUR 1300/kg of Ge (U.S ...
