Influence volumetric characteristic on skid number with difference aggregate gradation
List of Authors
  • Atica Chairun Nissa , Sigit Pranowo Hadiwardoyo

Keyword
  • Skid Resistance, Volumetric, Aggregate Gradation

Abstract
  • The purpose of this document is to present an investigation into the impact of volumetric characteristics, specifically the composition and distribution of aggregates, on the skid resistance performance of road surfaces. The study focuses on the variations in aggregate gradations and their influence on the volumetric properties of asphalt mixtures. Two distinct gradation types, continuous and gap grading, are analyzed to assess their effects on skid number values. VFA value does not have a significant effect on skid number value. The volumetric value with continuous gradation under standard conditions shows that the VMA value has the most significant influence on the skid value, and the VIM value gap gradation has the most significant influence on the skid value. While in immersion conditions, for volumetrics that affect the skid number value in continuous gradation and gaps, the VMA value has the most significant influence on the performance of skid resistance. The linear regression results in volumetrics and skid values on continuous and gap gradation in standard condition is y = 1.507 x VMA + 12.841 x VIM – 174.097. with an influence on the skid value of 83.7% and y = -5.576 x VMA + 6.233 x VFA + 33.345 x VIM – 461.402. with an influence on the skid value of 99.7%. The linear regression results at volumetric and skid values on continuous and gap gradation in immersion conditions are y = 5.242x VMA + 0.779 x VIM – 51.695. with an influence on the skid value of 45.8% and y = -3.462 x VMA – 0.454 x VFA -2.088 x VIM + 153.820. with an influence on the skid value of 98.3%. The effect of skid resistance performance on temperature, it can be concluded that a consistent increase in temperature causes a decrease in the skid resistance value.

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