Pressed steel sheets, in this case compacted vehicle bodies represent the structure diversity of the non-homogeneous material. There is necessity to determine the shear strength for the development of the construction of new processing equipment (cutting) of steel sheets. To calculate the shear strength it is necessary to know the ultimate firmness of the material. For homogeneous materials this paramet (…)
Besides the bituminous binder (foamed bitumen or bituminous emulsion) cement is often added into the cold recycled mixes as well. That is because cement improves moisture susceptibility and provides sufficient strength and stiffness especially during the early stage of mix curing. This article is focused on investigation of the potential of cement substitution by the micro-milled recycled concrete. The (…)
Exploitation of plastic waste is current issue in part of recycling in this present. Current recycling appears possibility of manufacturing of composite materials WPC (woodplastic composite). While a few decades ago as a plastic matrix used thermosets, currently often is using thermoplastics. The reason among other things is also able recycling these composite materials. The most common example exploita (…)
This paper discusses theoretical assets and liabilities of a use of advanced thermal technologies within waste-to-energy (WTE) processing. Gasification and pyrolysis are compared to conventional incineration. Major part of the paper deals with results of gasification experiments: various wastes were gasified within a fluid generator with a circulating fluidized bed. The results were later compared. Lowe (…)
Wire electrical discharge machining (WEDM) is a non-conventional machining technology which uses electrical impulses between two electrodes to cut materials. The long-term trend of increasing accuracy and surface finish quality leads to the necessity of its detailed examination. The study deals with the evaluation of the surface morphology by electron microscopy (SEM) and chemical composition analysis ( (…)
The aim of this work was to analyse the options for predicting pin connections, using modern computer aided systems. These advanced methods include Special-Purpose Programs and Finite Element Analysis, which fundamentally differ in their duration and precision of results. Some of these methods allow calculation including the influence of the force and pin position, position of the stiffness centre, and (…)
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