Re-use of Marble Waste as Filler Substitute in Bituminous Roads
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 10
Abstract
This paper describes the re-use of marble waste as filler material in wearing course of bituminous roads which is the replacement of stone dust. Stone dust is conventionally used as filler by NHA, Pakistan. Modified mixes containing Marble dust as filler were prepared and compared with conventional mixes containing stone dust as filler. Three varying Percentages of fillers namely Marble dust and Stone Dust (3.5%, 4.5% and 5.5% by weight of total aggregates) in both types of mixes were used along with three varying contents of bitumen (4%, 4.3% and 4.6%). Effect of both types of mixes was assessed in terms of Marshal stability and Indirect Tensile fatigue testing and results were discussed. Marshal mix design showed that modified mixes result higher stability as compared to conventional mixes. Increase in stability of modified mixes is due to the fact that Marble dust acts as a bitumen extender. Stone dust absorbs more asphalt content and causes disintegration of aggregate particles by bleeding when temperature exceeds 400C in summer and further compaction by heavy loaded vehicles.
Authors and Affiliations
Shafi Ullah, Dr. Muhammad Alam, Dr. Rawid Khan
Keywords
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- EP ID EP392550
- DOI 10.9790/9622-0710035862.
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