Evaluation of Performance of Porous Asphalt Containing Cellulose Fibers and Polymer Modified Bitumen

Document Type : Original Article

Authors

1 Assistance Professor, Road, Housing and Urban Development Research Center, Tehran, Iran

2 Fararahsazfan consulting engineers, Tehran, Iran

3 Assistance Professor, K.N.Toosi University of Technology, Tehran, Iran.

Abstract

Porous asphalt is a kind of open-graded asphalt mixture that characterized by containing a large proportion of interconnected air voids.  Many countries have used porous asphalt since many years ago, but due to unfamiliarity and some ambiguities of contractors and consultants with this kind of asphalt, it has not been used appropriately in Iran. In this paper the performance of porous asphalt constructed in a section of Ghaemshahr-Sari road, is explained and evaluated. Laboratory and field studies show that porous asphalt containing polymer modified bitumen and cellulose fibers has adequate strength and durability; also it decreases the noise and increases the permeability and skid resistance.
 
 

Keywords

References

 
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