Abstract This study designed a novel cement-based architectural tile prepared with more than 70% waste glass content (by weight). The waste glass was employed not only as decorative aggregates but also as a supplementary cementitious material in the architectural mortar. In terms of shrinkage, the incorporation of glass powder (GP) could significantly reduce the drying shrinkage of the glass mortars regardless of its fineness. When the glass mortars were subjected to high temperature (800 °C), the inclusion of GP into the mortars was more able to mitigate the flexural and compressive strengths losses as compared to the control glass mortar prepared without the use of GP. Furthermore, using the GP and glass aggregates simultaneously could effectively improve the resistance of the glass mortars to sulfuric acid attack and the positive effect was more pronounced when finer GP was incorporated. In particular, an encouraging result shows that the replacement of 20% cement by fine GP successfully suppressed the deteriorative alkali-silica-reaction (ASR) expansion caused by the glass aggregates. Also, the glass mortars incorporated with fine GP exhibited comparable or even superior durability properties than that of the fly ash blended glass mortar.

中文翻译：

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用玻璃粉提高用玻璃骨料制备的建筑砂浆的耐久性

摘要 本研究设计了一种新型水泥基建筑瓦，其制备的废玻璃含量超过 70%（按重量计）。废玻璃不仅用作装饰骨料，还用作建筑砂浆中的辅助胶凝材料。在收缩率方面，玻璃粉（GP）的加入可以显着降低玻璃砂浆的干燥收缩率，无论其细度如何。当玻璃砂浆经受高温 (800 °C) 时，与未使用 GP 制备的对照玻璃砂浆相比，在砂浆中加入 GP 更能减轻弯曲和抗压强度的损失。此外，同时使用GP和玻璃骨料可以有效提高玻璃砂浆对硫酸侵蚀的抵抗力，当加入更细的GP时，积极效果更明显。特别是，令人鼓舞的结果表明，用细 GP 替代 20% 的水泥成功地抑制了由玻璃骨料引起的劣化碱硅反应 (ASR) 膨胀。此外，与粉煤灰混合玻璃砂浆相比，掺入细 GP 的玻璃砂浆表现出相当甚至更好的耐久性性能。