Effect of Concentration of Sodium Hydroxide and Degree of Heat Curing on Fly Ash-Based Geopolymer Mortar

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td align="left">Mix number</td><td align="center">7</td><td align="center">8</td><td align="center">9</td><td align="center">10</td><td align="center">11</td><td align="center">12</td></tr><tr><td align="center" colspan="7"><hr/></td></tr><tr><td align="left">Concentration of NaOH, (M)</td><td align="center">2.91</td><td align="center">5.61</td><td align="center">8.10</td><td align="center">11.01</td><td align="center">13.11</td><td align="center">15.08</td></tr><tr><td align="center" colspan="7"><hr/></td></tr><tr><td align="left">Mass density, (Kg/m<sup>3</sup>)</td><td align="center">2174.15</td><td align="center">2298.39</td><td align="center">2237.35</td><td align="center">2201.51</td><td align="center">2186.52</td><td align="center">2189.35</td></tr><tr><td align="center" colspan="7"><hr/></td></tr><tr><td align="left">Alkalinity, pH</td><td align="center">10.24</td><td align="center">10.34</td><td align="center">10.30</td><td align="center">10.32</td><td align="center">10.52</td><td align="center">10.52</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Effect of concentration of sodium hydroxide on dry mass density and alkalinity for solution-to-fly ash ratio of 0.40.

Indian Journal of Materials Science

tab3

Table 3

Table 3: Effect of Concentration of Sodium Hydroxide and Degree of Heat Curing on Fly Ash-Based Geopolymer Mortar 