Shrinkage Effects of Using Fly Ash instead of Fine Aggregate in Concrete Mixtures

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Fly ash substitution level (%)</td><td class="align_center"><i>a</i></td><td class="align_center"><i>b</i></td><td class="align_center"><i>R</i><sup>2</sup></td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">15</td><td class="align_center">3381.01</td><td class="align_center">24.48</td><td class="align_center">0.99526</td></tr><tr><td class="align_left">25</td><td class="align_center">3249.19</td><td class="align_center">30.28</td><td class="align_center">0.99572</td></tr><tr><td class="align_left">35</td><td class="align_center">3636.34</td><td class="align_center">30.28</td><td class="align_center">0.99781</td></tr><tr><td class="align_left">45</td><td class="align_center">3691.13</td><td class="align_center">29.68</td><td class="align_center">0.98908</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Estimated parameters (<i>a</i> and <i>b</i>) for the modified theoretical shrinkage model and the resultant coefficient of determination (<i>R</i><sup>2</sup>).</div>

Advances in Materials Science and Engineering

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Table 4

Table 4: Shrinkage Effects of Using Fly Ash instead of Fine Aggregate in Concrete Mixtures 