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The objective of this research is to study in laboratory?s materials such as: cationic bituminous emulsions, aggregates, fly ash, etc., in order to develop optimal and appropriate mix formula for "cold" waste asphalt recycling with the addition of slow breaking cationic bituminous emulsions, fly ash, cement and natural aggregates. The purpose of this approach is to obtain an "optimal combination" comprising the above-mentioned materials as well as the mixing of the wear layer on the surface of the road on which th...

In last years, recycling has become a strategic factor in global politics, a vital component and a cost factor for economic development and the progress of society as a whole, generating a number of major global concerns. Exceeding twice the sum of all materials used in construction, annual concrete consumption around the world amounts to approximately 10 trillion tones being by far the most used building material and the partial or total replacement of a component of its mass with recyclable waste has a major pos...

The environmental investment programmes are targeted at the implementation of sustainable development activities, maintaining the quality of environment and biological diversity and ensuring the sustainable use of natural resources. In recent decade, Latvia has been one of the most active among the new EU Member States in the acquisition of the EU financial resources and other financial instruments for the implementation of the environmental policy targets in Latvia, especially in the spheres of environmental prot...

In the paper the analysis of Environmental Management System in the selected company was presented. This system is one of the elements of Integrated Management System. The analysis was based on the results from Plate Mill which is Department of Steel Mill working in the central part of Poland. In the first part of the paper general characteristics of Integrated Management Systems was made. Its individual elements were discussed. Environmental Management System, its conditions and elements were the main component o...

Landfilling, composting and incineration represent the most common processes used for the disposal of organic fraction of municipal solid waste (OFMSW). One of the methods that allow to limit the amount of stored biodegradable wastes is their biological transformation. In the European Union, composting is one of the most widely promoted methods of the biological processing of biodegradable waste. Composting of wastes consists on applying microbiological processes of transformation of the matter to obtain decomposi...

The aim of this study is to explore the possibility of recycling waste materials of brick aggregates (BA) and demolition concrete aggregates (DCA) in the self-compacting concrete (SCC), by studying these fresh and hardened properties. A reference mixture based on natural aggregates (NASCC) and six mixtures incorporating recycled brick aggregates (BASCC), recycled demolition concrete aggregate (DCASCC) and combination of recycled brick and demolition concrete aggregates (BDASCC), as replacement of natural aggregate...

Currently applied groundwater protection against penetration of pollutants from landfills are membranes that isolate the layer of stored waste from the substrate. As the material most commonly used are materials such as loam and natural clay or composite materials, such as plastic films or asphalt. Also there are known methods of using waste materials such as fly ash, as well as silicate-ash composites for the manufacture of seals in civil and hydraulic engineering. Literature also contains descriptions of the res...

Plastics are materials used in almost all areas of human activity and also in various branches of industry and in life in general. The growing production of plastics, their volume are evenly growing up also in the waste, therefore it is necessary to solve the plastic waste problem. The contribution deals with the using of recycled plastics plates and testing of sorted plastic waste. From the plastic waste as the semi-products re prepared for example the plastic plates by extruding technology, it means recycled pla...

In EU countries, it is currently enacted to separate all recyclable and compostable elements of municipal waste. The products of composting biodegradable fractions of municipal waste are finally used in agriculture and horticulture depending on their quality and maturity. When disposing biodegradable municipal waste (hereinafter BDMW), it is always necessary to keep in view that its decomposition is assisted by a wide scale of various organisms out of which some may be a reason of occurrence of serious biological ...

Circular economy, i.e. a closed-loop economy, is an idea in which the value of products and materials is retained as long as possible. A concept that minimizes the environmental impact of the products created, through such choice of components and design that will allow them to be reused. Speaking of circular economy, it is impossible not to mention the role of alternative fuels. According to the EN-15359: 2005 standard - Solid recovered fuels. Specification and classes, alternative fuels are flammable wastes, def...

Following mining and processing activity, results a significant amount of mining wastes, in the form of sterile mineral. These wastes are stored largely in mining tailing ponds or heaps. The chemical composition of the sterile material depends from one mining site to another. For long time worldwide, tailing deposits were considered waste deposits, without the possibility of future use. A few of the negative effects on the environment my constructing and exploiting mining tailing ponds, heaps, landfills, are the d...