aggregate waste Articles

  • Stabilization and utilization of hospital waste as road and asphalt aggregate

    This article reports the operational results of the effective utilization of hospital waste molten slag produced using a high-temperature melting system, and being operated at a hospital in Selangor, Malaysia. The hospital waste is incinerated and subsequently melted at 1200°C. Scanning election microscope (SEM)/EDX results showed that the slag produced after melting contained amounts of SiO2, ...


    By Springer

  • Construction waste recycling plant delivers added value for Yorkshire Aggregates

    Yorkshire Aggregates have become the latest company to install a recycling plant from Co.Tyrone-based CDE Ireland with an 80 tonnes/h plant now operational at their site in Doncaster, South Yorkshire.Yorkshire Aggregates are one of the most prominent names in the construction products and recycling industry in the northof England with a number of branches to the business. In addition to the new ...


    By CDEnviro

  • Added value for Yorkshire aggregates

    Yorkshire Aggregates have become the latest company to install a recycling plant from Co.Tyrone-based CDE Ireland with an 80 tonnes/h plant now operational at their site in Doncaster, South Yorkshire. Yorkshire Aggregates are one of the most prominent names in the construction products and recycling industry in the north of England with a number of branches to the business. In addition to the new ...


    By CDEnviro

  • Aggregates Research: Engineering properties of concrete containing recycled aggregates

    The objective of this project (AGG0079-002) was to identify whether the use of recycled concrete aggregate (RCA) affects the applicability of engineering property relations for concrete based on compressive strength given in the structural design Eurocode EN1992 [1] which is referred to here as EC2. It was also to determine whether the ultimate strength of concrete structural members containing ...

  • Water Use in the Mining Industry

    Freshwater resources are protected as industry begins to put emphasis on sustainability The mining industry has a great impact on water resources, both depleting water supplies with high usage and polluting them with discharges or seepage from tailings or waste rock impoundments. ...


    By Fluence Corporation

  • Characterization of Iron- and Manganese-cemented Redoximorphic aggregates in wetland soils contaminated with mine wastes

    In wetlands, translocation of Fe and Mn from reducing to oxidizing zones creates localized enrichments and depletions of oxide minerals. In zones of enrichment, oxides cement matrix particles together into aggregates. In this paper, we describe the various Fe- and Mn-cemented features present in the 1 to 2-mm size fraction of mine-waste contaminated wetland soils of the Coeur d'Alene (CDA) River ...

  • Material flows analysis of construction aggregates in Taiwan

    Recent decades of economic and industrial development have accelerated the demand for and use of construction aggregates in Taiwan. Material Flows Analysis (MFA), the most common analysis tool of the scientific field of industrial ecology, was employed in this study. The study calculated, within a decade period, the deposits, domestic production, demand, import, export, per capita and per unit ...


    By Inderscience Publishers

  • Waste not, want not

    New CDE sand washing plant produces high-quality building materials from 50-year-old waste in Estonia’s capital,Talinn Estonian company Paekivitoodete Tehase (Limestone Products) have recently purchased a CDE sand washing plant to process a material that had previously been stockpiled as waste because of its high clay content. As a result, this same material is now being sold to the ...


    By CDEnviro

  • Tyre aggregate applications in geotechnical and geoenvironmental engineering

    A Tyre Aggregate (TA) is made from scrap/waste rubber tyres. Four types of tyre aggregates are classified, namely the coarse-grained, fine-grained, random and composite tyre aggregates. Applications of these tyre aggregates are varied, but they are often used as geomaterial fills and highway-pavement components. More recently, TA has found application in geoenvironmental engineering. This paper ...


    By Inderscience Publishers

  • Derwen construction commissions a new washing plant for aggregates

    Who’s involved? Derwen Construction and the Wales Environment Trust. Background. Derwen Construction was established in 1993 as a civil engineering company, however three years ago, when they began to find it difficult to find landfill sites for the inert waste generated on their sites, they decided to become self sufficient and set up a recycling plant, ...


    By CDEnviro

  • Case Study - Brett Aggregates adopt MP5 for sustainability

    The Brett Group (http://www.brett.co.uk/) was established in the UK in 1909. Since that time Brett has evolved into a successful, established construction and building materials group - one of the largest independents in the UK. The business is structured into a number of divisions each being aligned with a product set – aggregates, concrete, construction, granite products, ...


    By EHS Data Limited

  • JPE Investment provides evidence of a solution to UK aggregates shortages

    An upgrade to the processing capability at Elford quarry to include a modular washing plant from CDE Global has resulted in a significant increase in the value of the products being produced. The level of demand for the recycled sand and aggregate products suggests that C&D recycling plants offer a real solution to a diminishing supply of virgin material in the UK. JPE Aggregates has operated ...


    By CDEnviro

  • Zero waste, Saudi Arabia

    The Saudi Iron & Steel Company (Hadeed) has a strong commitment to the environment. Hadeed's 3R waste management strategy – reuse, recycle, recover – includes recovering valuable metals, and re-using baghouse dust (from industrial air filters) in concrete cement. Harsco has a long track record of recovering valuable metals from steelmaking co-products, and in the same process ...


    By Harsco Metals & Minerals

  • Ultrasonic Waste and Sludge Treatment

    Biogas is generated from sources, such as municipal organic waste, sewage sludge, muck or manure. Ultrasonication improves the digestibility of such organic material leading to more biogas and less residual sludge. Biogas is a byproduct of the decomposition of organic matter by anaerobic or aerobic bacteria. It consists primarily of methane, carbon dioxide and hydrogen sulfide. This makes biogas ...


    By Hielscher Ultrasonics GmbH

  • Recycled glass as potential aggregate for concrete tiles: a statistical analysis of the physical and engineering properties

    This paper investigates the use of washed post–consumer Recycled Glass (RG) as replacement of 7.5% and 15%#37; silica aggregate in concretes used to manufacture roof tiles. Three grading of RG were studied, defined by the retained particles on the following US Tyler mesh sieves: 4–10 (4.76–1.68 mm), 10–20 (1.68–0.84 mm) and 20–50 (0.84–0.30 mm). Metakaolin (MK) was used to replace 7.5% and 15% ...


    By Inderscience Publishers

  • Geotube Dewatering Technology Provides An Effective Dewatering Technology Solution For Dewatering Aggregate Tailings - Case Study

    Simple and inexpensive, Geotube dewatering technology can make management of tailings and fines much easier. Many aggregate plants experience high equipment and manpower costs associated with the handling and removing o( tailings and fines from settling ponds. The costs of maintaining pond operations can vary significantly from plant to plant. Not only is valuable space tied up ...

  • Making commercial product from waste

    County Tyrone-based CDE Ireland Ltd, specialists in the design and manufacture of tailor-made processing equipment for the sand and aggregates industries, have recently installed a complete new processing system for Liam Lynch (Quarries) Ltd’s limestone quarry in Croom, Co. Limerick.The system includes Ireland’s first overhead-beam GHT filter press, which recycles the maximum amount ...


    By CDEnviro

  • Integrated life cycle management of aggregates quarrying, processing and recycling: definition of a common LCA methodology in the SARMa project

    Most of the environmental knowledge, presently used to understand or design sustainable industrial systems, is derived from an application of life cycle assessment (LCA). The mining/quarrying industry is probably one of the sectors where there has been relatively less use of LCA tools, or where LCA has received less consensus. A key issue is the integration between three interdependent life ...


    By Inderscience Publishers

  • A chance to drive hazardous waste policy

    The proliferation of energy-from-waste (EfW) power plants is making a significant contribution to the UK’s efforts to end its reliance on harmful fossil fuels. But while EfW plants provide a solution to municipal waste, they also produce a low amount of hazardous waste in the form of air pollution control residue (APCr). Despite numerous solutions existing that process and reuse APCr ...

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