Design and Evaluation of Hot Mix Asphalt Using Brick Dust as Mineral Filler Replacement
Journal Title: International Journal of Modern Research In Engineering & Management. - Year 2019, Vol 2, Issue 7
Abstract
Hot Mix Asphalt is the integral part of flexible pavement which is the mixture of suitable proportion of coarse aggregate, fine aggregate, fillers and the binder. Fillers are of the size of less than 0.075 mm. Fillers are very essential part of Hot Mix Asphalt that fill the voids within the aggregates, provide the stability and other important properties. Various Mineral fillers have been used such as waste glass, marble dust, stone dust, ordinary Portland cement by researchers to enhance the properties of mixes, however there is still need of other material such as Brick Dust to be used to further control the properties of the Hot Mix Asphalt. The aim of the research is to investigate the effect of powder as mineral filler on the mechanical properties of Hot Mix Asphalt. Using varying percentages of bitumen ranges from 3.0% to 5.0% with the interval of 0.5%, fifteen conventional specimens were prepared to check the properties and to obtain the Optimum Binder Content and using that optimum bitumen content and four different percentages 25% to 100% of Brick Dust as partial replacement of conventional filler, other fifteen mixes were prepared and examined to compare the results with the properties of controlled mixes and to obtain the Optimum Filler Content. From the results of Marshall Tests conducted for Asphalt wearing coarse Brick Dust found optimum at 10% filler Content in the Hot Mix Asphalt.
Authors and Affiliations
Jazib Qadir Shah
Keywords
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