Development of Mathematical Model to Predict Marshal Stability on Modified Asphalt

This paper monitor the rate at which marshal stability experienced improvement through modifiers with shell ash, these are filler that play a tremendous role in engineering properties of bituminous paving mixes. The study tries to improve the asphaltic materials applying these modifiers, the application of conventional, cement, lime and stone done are used as fillers. But for this study, an attempt has been made to access the effect of non-conventional filler (snail shell ash) the study applied modeling and simulation, this concept try to predict the variation of marshal stability at different percentage of shell ash, the predictive values generated parameters that are validated with experimental data, the values of both parameters observed to be stability and OK and it implies that it meant the criteria for asphalt institute for Mix design. The study from the predictive developed parameters between predictive and experimental values are 6.14 and 6.95 7.3 and 7.1 and 6.1 and 6.25, The results of asphaltic concrete showed that at 6.5% of filler content, the generated simulation validated with experimental parameters satisfied the standard of Marshal Properties. Thus, snail shell at 6.5% snail shell content of asphaltic concrete.

Keywords: Mathematical model; Marshal stability; Modified asphalt