Mixture Ratio Design Optimization of Coal Gangue-Based Geopolymer Concrete Based on Modified Gravitational Search Algorithm

<table class="table-group" id="tab9"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Strength grades</td><td class="align_center">C30</td><td class="align_center">C35</td><td class="align_center">C40</td><td class="align_center">C45</td><td class="align_center">C50</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Economic costs</td><td class="align_center">180.32</td><td class="align_center">203.81</td><td class="align_center">220.24</td><td class="align_center">231.68</td><td class="align_center">242.62</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Cost of different strength grades coal gangue-based geopolymer concrete based on Logistic mapping optimization (yuan/m<sup>3</sup>).</div>

Advances in Civil Engineering

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Table 9

Table 9: Mixture Ratio Design Optimization of Coal Gangue-Based Geopolymer Concrete Based on Modified Gravitational Search Algorithm 