Practical Study to Find the Best Sound Insulation for Walls From Different Building Materials

The sound insulation of walls made of different building materials was tested in various places from Tikrit University in Iraq, with a number of up to 14 walls, distributed in the Department of Environmental Engineering, the Department of Civil Engineering and Chemical Engineering, the Deanship of the College of Arts, the College of Education, the College of Arts, the Department of Psychology, and the Deanship of the College of Computer. It was found through the results that the highest value of sound insulation was obtained for the wall of sequence 13, which amounted to 44.86 dB, but it is for a wall built of thermiston material, and this indicates that thermiston gave the greatest value for sound insulation. The study showed that there are building materials for other walls that can give excellent sound insulation, which is a material republican bricks covered with wood and walls built of sandwich material with a thickness of 10 cm and walls concrete coated with PVC, as well as sandwich walls with a thickness of 7 cm, reaching. The highest values for the rest of the sound insulation results for the top five values were (38.6, 38.43, 37.13, 34, 33.76) dB decibel. The results showed that the perforated brick is no doubt excellent sound insulation and proof of that all the walls built of perforated bricks provided insulation Excellent sound with the rest of the additional isolators used. The study also showed that for the walls of the sandwich panels, with the increase in thickness, the value of sound insulation increases. Where the value of sound insulation (38.43 dB, 34 dB and 30.36 dB) for walls with thickness (10cm, 7cm and 5cm) respectively. Finally, it is important to mention that the lowest value of the measured sound insulation for measured walls was 23.23 decibels, but for a brick wall from the outside of the squirt spreading cement and from the inside with plaster and borax in the College of Engineering - Department of Environmental Engineering building.