Utilization of wood biomass ash (WBA) in the cement composites

Abstract

European policy is strongly directed towards renewable energy sources (RES) all in order to achieve a more competitive, secure and sustainable energy system. As part of 2030 Framework for climate and energy, the European Union (EU) has put forward the share of renewable energy increasing to at least a 27 %. Therefore, solid biomass and forestry biomass will continue to be one of the major sources for bioenergy within the EU all in order to transition energy politic towards this goal. The growing trend of using biomass as a RES results also in a growth of the produced wood biomass ash (WBA) as one of the by-product in the energy production. As the amount of biomass ash and the price of its landfill grows, it is necessary to establish the sustainable management as a major challenge in a bioenergy production. The one of the possible option to reduce the environmental and social problems related to the disposal of WBA is its utilization in the construction sector. This paper presents preliminary results of testing mechanical and durability properties of cement composites made with WBA in different amounts per cement mass.