Çelikten Serhat, Çavuşoğlu Mehmet Berfun
Department of Civil Engineering, Nevşehir Hacı Bektaş Veli University, Nevşehir, Türkiye.
Institute of Science, Nevşehir Hacı Bektaş Veli University, Nevşehir, Türkiye.
Environ Sci Pollut Res Int. 2025 Feb;32(7):3629-3648. doi: 10.1007/s11356-025-35916-4. Epub 2025 Jan 16.
Managing basalt rock cutting waste in an environmentally responsible manner is crucial to mitigate its negative impacts and protect both the environment and human health. Recycling basalt rock cutting waste in geopolymer applications offers multiple environmental, economic, and performance benefits, making it a promising approach for sustainable construction practices. For this purpose, this study concerns about the performance of fiber-reinforced basalt rock-cutting waste-based geopolymer composites at high temperatures up to 1000 °C. Geopolymer composites were manufactured by activating basalt rock cutting waste with sodium silicate. Alongside the fiber-free mixtures, fiber-reinforced geopolymer composites incorporating 0.5% and 1.0% basalt or polypropylene fibers by volume were synthesized. These composites underwent thermal curing at 100 °C for two distinct durations: 8 h and 24 h. In addition, the geopolymer composites were subjected to thermal exposure at three different temperatures: 600 °C, 800 °C, and 1000 °C. Changes in the strength and weights of the composites were determined after high-temperature exposure. In addition, XRD and SEM/EDX analyses were performed on the selected composites to investigate the changes in the microstructure of the composites. Thermal curing time and fiber content had significant influence on the high-temperature performance of the geopolymer composites. In this study, geopolymer mortars based on basalt rock cutting waste were successfully developed, demonstrating resistance to elevated temperatures up to 1000 °C. No reduction in compressive strength was observed in any of the composites when exposed to 600 °C, 800 °C, and 1000 °C. In fact, an increase in strength was recorded at varying rates, compared to the pre-exposure values.
以对环境负责的方式管理玄武岩切割废料对于减轻其负面影响、保护环境和人类健康至关重要。在地质聚合物应用中回收玄武岩切割废料具有多种环境、经济和性能优势，使其成为可持续建筑实践的一种有前景的方法。为此，本研究关注纤维增强的玄武岩切割废料基地质聚合物复合材料在高达1000℃的高温下的性能。通过用硅酸钠活化玄武岩切割废料来制造地质聚合物复合材料。除了无纤维混合物外，还合成了体积分数为0.5%和1.0%的玄武岩或聚丙烯纤维增强的地质聚合物复合材料。这些复合材料在100℃下进行了两种不同时长的热养护：8小时和24小时。此外，地质聚合物复合材料在三个不同温度下进行了热暴露：600℃、800℃和1000℃。在高温暴露后测定了复合材料的强度和重量变化。此外，对选定的复合材料进行了XRD和SEM/EDX分析，以研究复合材料微观结构的变化。热养护时间和纤维含量对地质聚合物复合材料的高温性能有显著影响。在本研究中，成功开发了基于玄武岩切割废料的地质聚合物砂浆，证明其能抵抗高达1000℃的高温。当暴露于600℃、800℃和1000℃时，任何复合材料的抗压强度均未降低。事实上，与暴露前的值相比，强度以不同速率有所增加。
