Effect of Nano-Cobalt Oxide on the Rheological Behavior of Asphalt Binder and Mechanical Characteristics of Hot Mix Asphalt

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Characteristics</td><td class="align_center">Typical values</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Compound formula</td><td class="align_center">Co<sub>3</sub>O<sub>4</sub></td></tr><tr><td class="align_left">Purity (%)</td><td class="align_center">99.9</td></tr><tr><td class="align_left">Appearance</td><td class="align_center">Fine dark gray to black powder</td></tr><tr><td class="align_left">Melting point (°C)</td><td class="align_center">895</td></tr><tr><td class="align_left">Boiling point (°C)</td><td class="align_center">900</td></tr><tr><td class="align_left">Density (g/cm<sup>3</sup>)</td><td class="align_center">6.11</td></tr><tr><td class="align_left">Bulk density (g/cm<sup>3</sup>)</td><td class="align_center">2.4</td></tr><tr><td class="align_left">Specific surface area (m<sup>2</sup>/g)</td><td class="align_center">32</td></tr><tr><td class="align_left">Average particle size (TEM)</td><td class="align_center">80 nm</td></tr><tr><td class="align_left">Acidity degree</td><td class="align_center">8.3</td></tr><tr><td class="align_left">Water percentage</td><td class="align_center">≥0.5</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Physical characteristics of nano-CoO [<a href="/journals/ace/2023/7353949/#B38" target="_blank">38</a>].</div>

Advances in Civil Engineering

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Table 3

Table 3: Effect of Nano-Cobalt Oxide on the Rheological Behavior of Asphalt Binder and Mechanical Characteristics of Hot Mix Asphalt 