Study on Strength and Ultrasonic Velocity of Air-Entrained Concrete and Plain Concrete in Cold Environment

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td align="left">Number of F-T cycles</td><td align="center">0</td><td align="center">100</td><td align="center">200</td><td align="center">300</td><td align="center">400</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td align="left">Reduced percentage of ultrasonic velocity</td><td align="center">100.00</td><td align="center">97.68</td><td align="center">97.63</td><td align="center">91.02</td><td align="center">84.70</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Reduced percentage of ultrasonic velocity of A-E-C subjected to F-T cycles.

Advances in Materials Science and Engineering

tab7

Table 7

Table 7: Study on Strength and Ultrasonic Velocity of Air-Entrained Concrete and Plain Concrete in Cold Environment 