Modified Stone Mastic Asphalt (SMA) Using Recycled Styrofoam as Additive

Rapid deterioration of road is one of the major problems faced by the government especially in Lucena City. Several standards on roadway construction, pavement design have been established to fix the problems yet it does not seem to be working. One of the key factors is because of traffic volume. The large population of vehicles has led the problems to have an extensive effect on the lifespan of the road. Styrofoam, being non biodegradable, is also one of the problems faced by major parts of the country because it is one of the materials with one time use only. This means that it is abundant but not many are recycling such material. This problem has made the researchers come up with the study entitled “Modified Stone Mastic Asphalt Using Styrofoam as additive”. Its aim is to create an additive that will utilize the amount of Styrofoam available in the environment. The study used ASTM standards for stone mastic asphalt and the latest DPWH standards for the design of pavements. The researchers used different percentage of Styrofoam additives in the mixture of modified stone mastic asphalt. The modified SMA mixture was subjected to different tests to determine its properties and compared it with the unmodified SMA. Its stability, flow and air void percentage was tested and it showed that modified asphalt can be an alternative additive in SMA.