Wood biomass ash as a raw material in concrete industry

Abstract

The trend of wood biomass use as a renewable energy source has contributed to an increase in the quantity of wood biomass ash (WBA) that is regarded as waste. Currently, 70 % of WBA is landfilled, 20 % is used in agriculture, and 10 % is used for other purposes. The aim of this paper is to carry out an extensive analysis of the current situation regarding WBA production in Croatia and other European countries. An overview of the types and properties of WBA in relation to the type of wood biomass is given, and parameters relevant for WBA use in concrete industry are presented.