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Experimental Performance of Polyester-Fiber-Based Soil Geogrids against Reflective Cracks
Transportation Research Record: Journal of the Transportation Research Board ( IF 1.6 ) Pub Date : 2021-07-27 , DOI: 10.1177/03611981211027557
Burak Evirgen 1 , Baris Buyuk 2 , Gizem Tugce Cil 2 , Tonguc Deger 2
Affiliation  

Road pavements may be subjected to deterioration problems caused by excessive traffic loads, thousands of load repetitions, environmental and climatic conditions, freeze-thaw effects, and insufficient design of mixtures. The formation of reflective cracks is the most common structural problem that occurs on a road’s superstructure over time. Special applications requiring expensive geosynthetics, such as glass-fiber-based geogrids (GG) or carbon-fiber-based geogrids, are generally used to solve this problem. Therefore, in this study, the utility of polyester-fiber-based soil geogrid (PG) is investigated as an alternative solution in relation to experimental performance analysis. Three-point bending tests are realized to custom-engineered hot mix asphalt plate specimens, with and without geogrids, under full-capacity static loading, cyclic loading, and dynamic fatigue loading conditions. Although the same bending strength levels are seen for plate specimens, including GG and PG reinforcements with a 100 kN/m tensile strength, PG-containing specimens show a 42% greater performance in the case of cyclic loading. Moreover, PG-reinforced plates have greater elastic behavior than GG plates, up to 49.4% within a dynamic fatigue test at the end of 15,000 cycles. As a result, it is shown that reflective cracks can be more effectively delayed by the use of soil PGs, rather than GGs, in relation to overall performance and service life.



中文翻译:

聚酯纤维基土工格栅抗反射裂缝的试验性能

道路路面可能会遭受由过度交通负荷、数千次负荷重复、环境和气候条件、冻融效应以及混合物设计不足引起的恶化问题。随着时间的推移,反射裂缝的形成是道路上部结构中最常见的结构问题。需要昂贵土工合成材料的特殊应用,如玻璃纤维基土工格栅 (GG) 或碳纤维基土工格栅,通常用于解决这个问题。因此,在本研究中,研究了聚酯纤维基土壤土工格栅 (PG) 的效用,作为与实验性能分析相关的替代解决方案。对定制设计的热拌沥青板试件进行三点弯曲试验,有无土工格栅,在满负荷静载荷、循环载荷、和动态疲劳载荷条件。尽管对于板试样(包括具有 100 kN/m 拉伸强度的 GG 和 PG 增强材料)可以看到相同的弯曲强度水平,但在循环载荷的情况下,含有 PG 的试样的性能提高了 42%。此外,PG 增强板比 GG 板具有更大的弹性行为,在 15,000 次循环结束时的动态疲劳测试中高达 49.4%。结果表明,相对于整体性能和使用寿命,使用土壤 PG 而不是 GG 可以更有效地延迟反射裂缝。此外,PG 增强板比 GG 板具有更大的弹性行为,在 15,000 次循环结束时的动态疲劳测试中高达 49.4%。结果表明,相对于整体性能和使用寿命,使用土壤 PG 而不是 GG 可以更有效地延迟反射裂缝。此外,PG 增强板比 GG 板具有更大的弹性行为,在 15,000 次循环结束时的动态疲劳测试中高达 49.4%。结果表明,相对于整体性能和使用寿命,使用土壤 PG 而不是 GG 可以更有效地延迟反射裂缝。

更新日期:2021-07-27
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