Investigation of Changes in Physical Properties of Bitumen Composite by Adding Recycled Materials

Bitumen is one of the most widely used materials in industries, especially the road and construction industry. In this research, an attempt has been made to investigate and compared the effects of changes in the physical properties of bitumen composites containing recycled materials such as Hair, Fleece, Glass powder, stuffed chicken and Sawdust with pure bitumen to improve pure bitumen features. Using recycled materials either to save the environment as well as reduce the cost of final material.

This experimental research is used standard and validated methods to investigate thermal conductivity, sound transmission, viscosity, angularity, permeability, and compressive strength.

 Results has shown that the use of sawdust enhances thermal and strength resistance and also use of human hair enhances sound resistance of this pure material. In general, these additives had an adverse effect on viscosity of the raw material. But no significant effect was observed in the compressive strength of the raw material.

 according to this investigation, adding recycled materials can improved some of properties of pure bitumen and as for type of bitumen usage in special industry, it can applied amplifier recycled additive in bitumen.