Objectives: To study the influence of electromagnetic fields on the physico-mechanical properties of the mortar (resistance to compression and bending). Methods/analysis: In the current research, the influence of the electromagnetic field in the mortar was studied experimentally by replacing the cement with 10% bottom ash provided from a thermal power plant and formulates a mortar with high resistance to compression and bending. Scanning electron microscopy (SEM)/X-ray diffraction (XRD) analyses were further performed to confirm the obtained results. Findings: Based on the above results, it was found that the use of magnetized water offered better microstructure and mechanical resistance to compression and bending, for both normal mortar and mortar containing 10% of bottom ash from thermal power plants. The majority of previous publications were produced on normal mortars based on cement and ordinary water, while this study was carried out on mortars with magnetized water and bottom ash. Novelty /improvement: A new method was proposed for the formulation of an eco-mortar based on bottom ash obtained from thermal power plant and magnetized water. Water mortar magnetizes with bottom ash to provide several Article Type: Article
The incineration of non-hazardous solid waste and its use as alternative fuel in cement manufacturing process was studied and simulated under the effect of air flow acceleration in a laboratory scale reactor. Firstly, analysis of the different waste materials (textile, wood and paper) was performed separately, showing that textile samples presented the highest levels of heavy metals (H.M). In the course of a test run using solid recovered fuel (SRF), the mass balance of heavy metals revealed that lead and chromium probably volatilized during firing while arsenic, cadmium and zinc were trapped in clinker. As to gaseous emissions, heavy metals concentration in the stack remained relatively low and below the standard limits. Secondly, the temperature and concentration of gases flue was monitored. It was shown that the combustion regime is characterized by low reaction temperatures and an oxygen-deficient environment. Air injection rate affected significantly the formation and degradation mechanisms of the emitted gases concentrations, particularly CO, CO2, NO, NOx, SO2. Textile waste exhibited the lowest concentration of emitted gases compared to the other types of waste.
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