<p>Road surface deicing is one of the main purposes of electrically conductive concrete. During the past few decades, using materials with multiple properties has gained increasing importance in technological developments and provided advantages compared to the traditional use of materials. Accordingly, electrically conductive components are widely searched to apply deicing on the pavement surface. This study primarily focused on the enhancement of conductive and mechanical properties of concrete by incorporating aluminum waste into the concrete mixture, in addition to addressing recycling and reusing of these materials. Aluminum waste namely aluminum chips and aluminum powder were utilized as conductive materials in concrete. Mechanical and conductive properties of seven mixtures that contain different proportions of the conductive materials were evaluated. The results indicate that mixture CH<sub>3</sub>P<sub>5</sub> depicts the best mixture in terms of mechanical strengths and the lowest electrical resistivity followed by CH<sub>5</sub>P<sub>3</sub>. Mixtures CH<sub>3</sub>P<sub>5</sub> and CH<sub>5</sub>P<sub>3</sub> were selected for heating test due to their better performance during aforementioned tests on the mixtures containing conductive materials. Under 27 V, CH<sub>3</sub>P<sub>5</sub> and CH<sub>5</sub>P<sub>3</sub> surface temperature increased by 33.75 and 30.05&#xa0;°C, respectively. Thus, satisfactory heating performance of waste aluminum as conductive material in concrete was confirmed.</p>

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Mechanical and electrical properties of concrete incorporating aluminum waste

  • Mojtaba Fathi,
  • Seyed Esmaeil Mohammadyan-Yasouj,
  • Yashar Asghari,
  • Michal Petrů,
  • Hamid Ghandvar,
  • Seyed Saeid Rahimian Koloor

摘要

Road surface deicing is one of the main purposes of electrically conductive concrete. During the past few decades, using materials with multiple properties has gained increasing importance in technological developments and provided advantages compared to the traditional use of materials. Accordingly, electrically conductive components are widely searched to apply deicing on the pavement surface. This study primarily focused on the enhancement of conductive and mechanical properties of concrete by incorporating aluminum waste into the concrete mixture, in addition to addressing recycling and reusing of these materials. Aluminum waste namely aluminum chips and aluminum powder were utilized as conductive materials in concrete. Mechanical and conductive properties of seven mixtures that contain different proportions of the conductive materials were evaluated. The results indicate that mixture CH3P5 depicts the best mixture in terms of mechanical strengths and the lowest electrical resistivity followed by CH5P3. Mixtures CH3P5 and CH5P3 were selected for heating test due to their better performance during aforementioned tests on the mixtures containing conductive materials. Under 27 V, CH3P5 and CH5P3 surface temperature increased by 33.75 and 30.05 °C, respectively. Thus, satisfactory heating performance of waste aluminum as conductive material in concrete was confirmed.