Lightweight concrete using expanded polystyrene beads

Laganim betonom smatra se beton čija gustoća iznosi od 800 do 2000 kg/m3. Lakoagregatni beton, vrsta laganog betona, sastoji se od lakog agregata, cementa, vode i aditiva. U ovom radu kao lagani agregat koristile su se granule ekspandiranog polistirena (EPS) te se takav beton naziva EPS beton. Cilj eksperimentalnog dijela rada bio je izraditi EPS beton ciljane gustoće od 1200 kg/m3. Nadalje, prikazani su i analizirani rezultati mjerenja konzistencije na svježem betonu, rezultati ispitivanja osnovnih mehaničkih svojstava kao što su: tlačna čvrstoća, vlačna čvrstoća cijepanjem i čvrstoća savijanjem te rezultati vodoupojnosti metodom potpunog uranjanja. Na osnovu rezultata ispitivanja u svježem i očvrslom stanju donesen je zaključak da se ova betonska mješavina može primijeniti u konstruktivno–izolacijske i izolacijske svrhe.The lightweight concrete is concrete with a density of 800 to 2000 kg/m3. Lightweight aggregate concrete, type of light concrete, consist of light aggregate, cement, water and additive. In this work, expanded polystyrene granules were used as a lightweight aggregate and such concrete is called the EPS concrete. The main goal of the experimental part was to produce EPS concrete with a density of 1200 kg/m3. The results of measuring the consistency of fresh concrete, the results of testing the basic mechanical properties such as compressive strength, tensile and splitting strength and the results of water absorption by the method of complete immersion are presented and analyzed. Based on the test results conducted on fresh and hardened concrete it is concluded that this mixture can be used only for construction and insulation purposes