Synthesis of Pectiniform Polyurethane-Modified Polycarboxylate and Its Preliminary Application in Ultrahigh-Performance Concrete

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Polycarboxylate</td><td class="align_center">Cement (g)</td><td class="align_center">Sand (g)</td><td class="align_center">Water (<i>M</i><sub>1</sub>) (g)</td><td class="align_center">Flowability</td><td class="align_center">Water-reducing rate (%)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">M-PCE</td><td class="align_center">450</td><td class="align_center">1350</td><td class="align_center">128.6</td><td class="align_center">180 mm, 183 mm</td><td class="align_center">37.3</td></tr><tr><td class="align_left">Sika</td><td class="align_center">450</td><td class="align_center">1350</td><td class="align_center">133.5</td><td class="align_center">180 mm, 185 mm</td><td class="align_center">34.8</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Water reduction rate of polycarboxylate in mortar.</div>

Advances in Civil Engineering

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Table 3

Table 3: Synthesis of Pectiniform Polyurethane-Modified Polycarboxylate and Its Preliminary Application in Ultrahigh-Performance Concrete 