The 'samples of vulcanized rubber compounds with natural rubber INR) and styrene-butadiene rubber (SBR) were prepared. The surface chlorination of samples was performed by immersion of strips in aqueous solution of sodium hypochlorite and in hydrochloric acid in dependence of time and in temperature range from 2O'C to 80'C. The changes of chemical structures, thermal stability and morphological properties of chlorinated vulcanizates were recorded by IR-FMIR spectroscopy, differential scanning calorimetry IDSC) I thermogravimetric analysis ITGA), wide angle X-ray diffraction (WAXD) and scanning electron microscopy (SEMI. Extremely heterogeneous complex mechanisms of chlorination and parallel degradation processes in dependence on time and temperature above all were indicated and compared to NR and SBR vulcanizates. At higher temperatures the structural changes in elastomeric matrix in connection with selective separation and surface migration of multicomponent filler due to agressive media were observed.
U radu je dat opis noseće konstrukcije drumskog betonskog mosta na putu Beočin – Naselje Dunav. Vizuelnim pregledom su uočeni defekti i oštećenja svih konstrukcijskih elemenata. Procjenom stanja i projektom sanacije su predviđeni građevinski radovi koje je potrebno uraditi na objektima koji su oštećeni. Projekat sanacije se sastoji iz više faza. Prvo je potrebno doći do odgovarajuće projektno-tehničke dokumentacije, izaći na teren i obaviti vizuelni pregled, izvršiti procjenu stanja, ispitati materijale od kojih je objekat napravljen i predložiti mjere sanacije. Objekti kod kojih se sumnja u nosivost, stabilnost, funkcionalnost i upotrebljivost, treba da budu vizuelno pregledani, da se predlože mjere sanacije i da se saniraju kako bi se produžio životni vijek takvih konstrukcija.
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