SOUND INSULATION OF BRICK WALLS

V diplomski nalogi smo raziskali zvočno izolirnost opečnih zidov v odvisnosti od dodanih zunanjih plasti. Najprej smo teoretično in praktično analizirali opečni zid z obojestranskim strojnim ometom, nato pa smo analizo ponovili še na istem opečnem zidu z dodatno mavčnokartonsko oblogo z vmesno izolacijo iz steklene volne. Rezultati analiz so pokazali, da opečni zid z obojestranskim strojnim ometom ne dosega minimalno predpisanih vrednosti glede zvočne zaščite. Z dodano mavčnokartonsko oblogo z vmesno izolacijo, pa se te vrednosti bistveno izboljšajo. Pri ekonomski raziskavi smo za obe obravnavani sestavi natančno določili variabilne (materialne) stroške na m2 in cene izvedbe istih zidov na trgu. Za primerjavo smo v ekonomski raziskavi dodali še sestavo zidu iz armiranega betona. Izkazalo se je, da je iz vidika variabilnih stroškov najbolj ugodna izvedba zidu iz armiranega betona. Iz vidika tržnih cen pa je najugodnejša izvedba opečnega zidu z obojestranskim strojnim ometom.We have studied the influence of added external layers to a brick wall.. First, we have theoretically and practically analyzed a brick wall with plaster added on both sides. Then we have analyzed the same brick wall with plasterboards and insulation added on one side. The results obtained by the analysis showed that a brick wall with plaster added on both sides does not fulfill the regulation norm for sound insulation. With plasterboards and insulation added on only one side of the wall the results improved significantly. The economical study was based on the analysis of variable costs and market prices for both compositions. In comparison, an additional composition of wall was added, which is made out of reinforced concrete. The best value in variable costs analysis was obtained by the wall made of reinforced concrete. The best value i