In this paper, the influence of calcined perlite on the elevated temperature behaviour of alkali activated slag (AAS) mortars is researched. The diversity parameters of mortars are the levels of calcined perlite (CP) replacement (0, 25 and 50% by volume), the molecular silicate modulus (0.25, 0.50, 0.75, 1.00 and 1.25) and the levels of elevated temperature (400 °C, 600 °C and 800 °C). The flexural strength (f_f), compressive strength (f_c) and mass loss of mortars produced according to these diversity parameters are determined. Moreover, X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) analyses are performed on the samples from the mortars exposed to ambient and elevated temperatures. The experimental results prove that the initial f_f and f_c results of mortars at ambient temperature significantly reduce with the increase of CP content. This decrease in the f_f and f_c results of mortars is confirmed by the mass losses and microstructure analysis. On the other hand, the experimental results prove that there are significant improvements in the residual strengths of mortars at elevated temperatures with the increase of CP content.

本文研究了煅烧珍珠岩对碱活化矿渣（AAS）砂浆高温行为的影响。砂浆的多样性参数是煅烧珍珠岩（CP）的含量（0、25和50％（体积）），分子硅酸盐模量（0.25、0.50、0.75、1.00和1.25）和高温（400°C）。 C，600°C和800°C）。抗折强度（f _f），抗压强度（f _c），并确定根据这些多样性参数生产的砂浆的质量损失。此外，对砂浆暴露于环境和高温下的样品进行了X射线衍射（XRD），扫描电子显微镜（SEM）和能量色散光谱（EDS）分析。实验结果证明，随着CP含量的增加，砂浆在环境温度下的初始f _f和f _c结果显着降低。这种下降在˚F _˚F和˚F _Ç砂浆的结果由质量损失和微观结构分析证实。另一方面，实验结果证明，随着CP含量的增加，砂浆在高温下的残余强度有了显着提高。