Samozbijajući beton je vrsta betona koja teče samo pod utjecajem vlastite težine bez segregacije, tijekom čega se dearira. To je beton koji popunjava oplatu zaobilazeći armaturu, te na kraju zadržava horizontalnu površinu bez potrebe za uporabom vibracijskih uređaja. Neke od karakteristika koje razlikuju samozbijajući beton od običnog su poboljšana fluidnost, visoka čvrstoća u očvrslom stanju, lakša ugradnja i povećana trajnost. Beton je okarakteriziran kao negorivi materijal. Ovisno o temperaturi u betonu pojavljuju se kemijske promjene minerala iz očvrsle cementne paste i agregata. U eksperimentalnom dijelu rada su se testirala i analizirala mehanička svojstva samozbijajućeg lakog betona pod utjecajem visokih temperatura (100, 300, 500, 700°C), te su prikazani rezultati.

Self compacting concrete is a type of concrete that runs only under the influence of its own weight without segregation, during which air flows freely. It's the type of concrete that fills all voids bypassing the armature, and in the end retains a horizontal surface without the use of vibrating devices. Some of the characteristics that distinguish self-compacting concrete from the regular concrete are improved fluidity, high strength in the hardened state, easier installation and increased durability. Concrete is classified as non-combustible material. Depending on the temperature of the concrete there are chemical changes of minerals from the hardened cement paste and aggregate. In the experimental part of the work the mechanical properties of self-compacting lightweight concrete under the influence of high temperatures (100, 300, 500, 700°C) were tested and analized and after that their results were shown.