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Cement manufacturing has been always ranked in the list of the main sources of carbon emissions among industrial activities. Almost 5-7% of global CO2 emissions are caused by cement plants, while about 900 kg CO2 is emitted to the atmosphere for producing one ton of cement. On this account, there is laid pressure to reduce cement consumption by the use of alternative binders. In this paper, we would like to show that wheat straw ash can be used for the fabrication of construction composites with lower cement conte...

The handling and disposal of voluminous sludge produced from water treatment plants poses difficulty to environmental scientist and engineers. In fact, its environmental friendly management and disposal is challenging task and requires careful consideration. In this study, sewage sludge ashes were examined as potentially supplementary cementitious materials. The raw sewage sludge was provided by two different municipal waste water treatment plants, coming from Poland and Greece respectively. The calcination of pre...