Lightweight concrete

Tema ovog rada obrađuje lagane betone. Lagani betoni u odnosu na normalne betone imaju manju gustoću, a takva manja gustoća postiže se stvaranjem međuprostora između zrna krupnog agregata, stvaranjem pora u mortu ili upotrebom agregata sa velikim sadržajem pora. Povećanje pora ima negativan efekt na neka svojstva betona, pa tako lagani betoni imaju manju čvrstoću i otpornost na habanje u odnosu na normalni beton. Također su prikazane i objašnjene vrste laganih betona (laganoagregatni betoni, betoni od jednozrnatog agregata i ćelijasti betoni) te najčešći agregati koji se koriste za proizvodnju.The topic of this work deals with lightweight concrete. Compared to normal concrete, lightweight concretes have a lower density, and such a lower density is achieved by creating interspaces between coarse aggregate grains, by creating pores in the mortar or by using aggregates with a high pore content. The increase in pores has a negative effect on some properties of concrete, so lightweight concretes have lower strength and wear resistance compared to normal concrete. Types of lightweight concrete (light aggregate concrete, single-grain aggregate concrete and cellular concrete) and the most common aggregates used for production are shown and explained