采用碱激发煤矸石-矿渣(AACGS)与碳纤维(CF)和钢纤维(SF)制备CF-AACGS基和SF-AACGS基导电砂浆，分析了纤维种类和掺量对砂浆力学性能和电阻率的影响规律，并讨论了砂浆在不同含水量和环境温度下的导电性.结果表明，单掺0.45vol%CF或单掺2.0vol%SF时，砂浆28d的抗折强度分别提高了67.66%、80.78%，并且抗压强度也得到提升.单掺0.3vol%CF或单掺1.5vol%SF时，砂浆内部即形成空间导电网络并达到渗流阈值，致使电阻率显著减小，同时使含水量和环境温度对其导电性的影响显著降低.

Alkali-activated coal gangue-slag (AACGS), carbon fiber (CF) and steel fiber (SF) were used to prepare CF-AACGS-based and SF-AACGS-based conductive mortars. The effect of fiber type and fiber content on the mechanical properties and resistivity of mortar were investigated, and the conductive of mortar at different water content and ambient temperature was discussed. The results showed that the 28-day flexural strength of the mortar was increased by 67.66% and 80.78% when 0.45 vol% CF alone or 2.0 vol% SF alone was added, respectively. And the compressive strength was improved. At 0.3 vol% CF or 1.5 vol% SF, the spatial conductive network was formed inside the mortar and the percolation threshold was reached, resulting in lower resistivity. And the effect of water content and ambient temperature on its conductivity was significantly reduced.

TU528