Modulus of elasticity of concrete with wood biomass ash

U radu se istražuje utjecaj pepela dobivenog izgaranjem drvne biomase na svojstva betona. Biomasa je obnovljivi izvor energije i jedan od najstarijih izvora energije. Predstavlja značajan potencijal u procesima proizvodnje i potrošnje energije. Pepeo dobiven izgaranjem drvne biomase u manjem dijelu se koristi u poljoprivredi, a ostatak je potrebno adekvatno zbrinuti. Postoji mogućnost korištenja pepela iz drvne biomase u građevinarstvu. Cilj ovog rada bio je ispitati utjecaj pepela na svojstva betona u svježem i očvrsnulom stanju, a posebno na svojstva modula elastičnosti i tla njene čvrstoće. Ispitivanja su se provodila na uzorcima betona kod kojih je pepeo drvne biomase korišten kao zamjena za dio cementa. Primijenjene su različite vrste pepela iz 3 energane na drvnu biomasu. Istraživanja provedena u sklopu ovog rada dio su projekta TAREC2 Transformacija pepela iz drvene biomase u građevne kompozite s dodanom vrijednošću.The paper researched the impact of ash from wood biomass combustion on concrete properties. Biomass is a renewable energy source and also one of the oldest sources of energy. The ash obtained from the combustion of wood biomass is to a lesser extent used in agriculture, and the rest needs to be properly disposed of. There is a possibility of using wood biomass ash as a construction material. The aim of this work was to investigate the influence of ash on the properties of concrete in a fresh and hardened state, especially on the properties of the modulus of elasticity and compressive strength. Tests were carried out on concrete samples where wood biomass ash was used as replacement of part of the cement. Different types of ash from three biomass power plants were used. The research carried out within this work is part of the project TAREC2 Transformation of wood biomass ash into resilient construction composites