Evaluation of the effect of titanium dioxide on hot mix asphalt mixtures for flexible pavement at high temperatures

Jose Lopez, Junior Reyes, Manuel Silvera, Fernando Campos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The effect of high temperatures on flexible pavements is reflected in the failures that they may present. This stands out in those pavements where there was a bad construction process or where adequate maintenance was not carried out. In this article, the use of titanium dioxide in a mixture with modified asphalt emulsion with SBS polymer is evaluated to improve its stability at high temperatures. For this, wet abrasion tests, loaded wheel and surface temperature data collection are carried out to check if the addition of titanium dioxide can improve the performance of a pavement in places with high heat indices.The results indicate that, by adding titanium dioxide at a value of 3% by mass of aggregate, the values of abrasion and loaded wheel improve due to the greater presence of fines in the mixture. In addition, the surface temperature decreases by 5 °C when is compared to the conventional mix.

Original languageEnglish
Title of host publication2022 Congreso Internacional de Innovacion y Tendencias en Ingenieria, CONIITI 2022 - Conference Proceedings
EditorsVictor Manuel Fontalvo Morales
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665465250
DOIs
StatePublished - 2022
Externally publishedYes
Event2022 Congreso Internacional de Innovacion y Tendencias en Ingenieria, CONIITI 2022 - Bogota, Colombia
Duration: 5 Oct 20227 Oct 2022

Publication series

Name2022 Congreso Internacional de Innovacion y Tendencias en Ingenieria, CONIITI 2022 - Conference Proceedings

Conference

Conference2022 Congreso Internacional de Innovacion y Tendencias en Ingenieria, CONIITI 2022
Country/TerritoryColombia
CityBogota
Period5/10/227/10/22

Keywords

  • exudation
  • flexible pavement
  • high temperatures
  • pavement failures
  • titanium dioxide

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