Reuse of cardboards in production of sound insulating material

Abstract

Noise is unwanted sound reaching the ear; it leads to annoyance, disturbance of sleep and other effects that may disturb the comfortability of the user of the building if not controlled. In Rwanda, Rwanda National Police (RNP) as well as ministries, local government and public institutions in charge always mobilize Rwandan citizens; especially churches, cinema halls, studios, public buildings, entertainment halls and other sources of noise that sound must be reduced as much as possible so that they may not disturb people who are not concerned in those activities. However, it should be normal practice to reduce noise reaching people using a building. It is in that context that international regulations as well as Rwandan regulations state that each building should have sound insulation for the provision of comfortability of users against noise. One of solutions to fight against that issue of noise that our proposal is based on, is to provide materials that may retain internal noise in the building so that its intensity is reduced outside the building or its rooms. My research project is based on combining together materials taken as waste in our country; which are cardboards and wooden chips using glue so that we shall come up with a new product used as sound insulating material. This report shows clearly how research was conducted. The method used to collect data is quantitative where materials are to be collected by sampling to make insulating board sample 1m*1m and then field tests are carried out. Also qualitative approach was used while we did research in previous reports and books as well as internet research to simulate our product with other available sound insulating materials. After producing our material, we found that our material will be able to retain noise by measuring sound level before and after placement of sound insulating material and will be exactly the answer of the stated problem.