Experimental testing of certain thermo-physical and mechanical properties of EPS concrete

Abstract

In this paper the experimental results obtained during testing of certain important properties of EPS concrete as a type of lightweight composite material - regarding Civil engineering physics are presented. Most of the attention has been paid to actual problems of thermo-insulation, steam conduction, capillary absorption and behavior of the material when exposed to low temperatures. After numerous laboratory tests, the authors concluded that Simprolit - as a represent of the EPS group of light concrete composites made of Portland cement, expanded polystyrene granules and special additives - satisfies high demands necessary for contemporary thermo-insulation and steam conduction materials. This composite material is characterized by relatively low density and good thermo-insulation properties, as well as high frost resistance. Simprolit system for thermo-insulation and steam conduction fulfils all the required conditions - both from the aspects of bearing capacity and Civil engineering physics.

U ovom radu prikazani su rezultati sopstvenih eksperimentalnih ispitivanja nekih od važnijih svojstava lakoagregatnih kompozita tipa EPS betona - sa stanovišta građevinske fizike. Akcenat je stavljen na aktuelne probleme termoizolacije, odvođenja vodene pare, kapilarnog upijanja i ponašanja materijala u uslovima niskih temperatura spoljašnje sredine. Nakon obavljenih brojnih laboratorijskih testova, autori su došli do zaključka da Simprolit - kao reprezent grupe EPS betona spravljenih na bazi portland cementa, granula ekspandiranog polistirena i specijalnih aditiva - zadovoljava visoke zahteve koji se postavljaju pred savremene termoizolacione i paropropusne materijale. Ovaj kompozit karakterišu relativno niska zapreminska masa i dobre termoizolacione performanse, kao i visoka otpornost na dejstvo mraza. Simprolit sistem za termoizolaciju odvođenje vodene pare sa ravnih krovova ispunjava neophodne uslove - kako sa aspekta nosivosti, tako i sa aspekta građevinske fizike.