CAJ | 학술논문

制备了地质聚合物混凝土，对经高温处理后的地质聚合物混凝土开展了准静态力学试验和超声波检测试验，分析了不同温度、不同冷却方式下地质聚合物混凝土的损伤特性。结果表明：地质聚合物混凝土的抗压强度随温度的升高而不断下降，600℃是抗压强度随温度变化曲线的拐点；随着温度的升高，损伤因子不断增大，性能逐渐劣化；冷却方式对高温后地质聚合物混凝土的损伤特性具有较大影响，相比于自然冷却方式而言，浇水冷却后试件的抗压强度降低地更为明显，声学损伤劣化加剧。由此可见，地质聚合物混凝土的损伤随温度的升高而越加严重，而且，相比于自然冷却方式而言，浇水冷却后试件的损伤劣化加剧。
제비료지질취합물혼응토，대경고온처리후적지질취합물혼응토개전료준정태역학시험화초성파검측시험，분석료불동온도、불동냉각방식하지질취합물혼응토적손상특성。결과표명：지질취합물혼응토적항압강도수온도적승고이불단하강，600℃시항압강도수온도변화곡선적괴점；수착온도적승고，손상인자불단증대，성능축점열화；냉각방식대고온후지질취합물혼응토적손상특성구유교대영향，상비우자연냉각방식이언，요수냉각후시건적항압강도강저지경위명현，성학손상열화가극。유차가견，지질취합물혼응토적손상수온도적승고이월가엄중，이차，상비우자연냉각방식이언，요수냉각후시건적손상열화가극。
The geopolymeric concrete was prepared.The ultrasonic testing and quasi-static compressive test of geopolymeric after ele-vated temperature were carried out,the damage characteristics of geopolymeric under various temperatures and different cooling methods were analyzed.The results indicated that compressive strength decreased with the rising of temperature ,and 600℃was the flex point of the changing curve between compressive strength and temperature;With the rising of temperature,damage factor increased and performance degrades gradually;The influence caused by the cooling methods on damage characteristics of geopolymeric after elevated temperature was obvious,moreover,compared with natural cooling,the decline of compressive strength of specimens cooled by spraying water were more obvious,and the damage increased.Thus it can be seen,the damage of geopolymeric increased with the rising of temperature,and the damage cooled by spraying water were more obvious than that cooled by natural cooling.