The properties of mortars containing waste glass powder (WGP) as a cement substitute for sustainable construction at various high temperatures were investigated. For this purpose, specimens from four mixtures with WGP at various percentage levels of 0, 5, 10 and 15% were prepared and exposed to the specified temperatures. After that, the compressive and flexural strength were determined at high temperatures. The mass loss was also measured by weighing the samples before and after exposing to the high temperatures. The microstructure of mortars was analyzed by petrographic examination. Based on the obtained results, incorporation of WGP as partial replacement of cement could improve strength characteristics of the mortars at the elevated temperatures up to 17%. Also, the optimum ratio of cement replacement level was found to be 10%. In addition, the petrographic images of the mortars showed that at the same time with the strength loss of specimens, the red discoloration of WGP occurred that is attributed to the oxidation of iron compounds that starts at temperatures above 200 °C.

中文翻译：

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含WGP环保砂浆高温力学性能及微观结构研究

研究了含有废玻璃粉 (WGP) 的砂浆在各种高温下作为可持续建筑的水泥替代品的性能。为此，制备了来自四种混合物的样品，其中 WGP 的比例为 0、5、10 和 15% 的不同百分比水平，并将其暴露在指定的温度下。之后，在高温下测定压缩和弯曲强度。还通过在暴露于高温之前和之后称重样品来测量质量损失。砂浆的微观结构通过岩相学检验进行分析。根据获得的结果，加入 WGP 作为水泥的部分替代品可以将砂浆在高温下的强度特性提高 17%。此外，发现水泥替代水平的最佳比例为10%。此外，