Testing of Action of Direct Flame on Concrete

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left">Mixture</td><td align="center">Spalling [mm]</td><td align="left">Description</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">CEM I - GR-PF</td><td align="center">Nothing</td><td align="left">(i) Network of cracks on the exposed surface, local cracks in side walls</td></tr><tr><td align="left">CEM III/B - B-PF</td><td align="center">Nothing</td><td align="left">(i) Network of cracks on exposed surface</td></tr><tr><td align="left">CEM III/B - B-SF</td><td align="center">Nothing</td><td align="left">(i)  Network of cracks on exposed surface, perpendicular crack on the surface with thermocouples</td></tr><tr><td align="left">CEM III/B - B</td><td align="center">Nothing</td><td align="left">(i)  Network of cracks on exposed surface, perpendicular crack on the surface with thermocouples</td></tr><tr><td align="left">CEM I - GR-SCC</td><td align="center">5.1</td><td align="left">(i)  Spalling of a layer of concrete from the exposed side<br/>(ii)  Local cracks in side walls<br/>(iii)  Cracks in mastic cement and aggregate of spalled surface</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Description of test specimens after thermal load.

The Scientific World Journal

tab5

Table 5

Table 5: Testing of Action of Direct Flame on Concrete 