原文传递
Putting reinforcement systems to the test
| 题名： | Putting reinforcement systems to the test |
| 正文语种： | eng |
| 摘要： | The cracking of asphalt is a well-known problem that limits the lifetime of road surfaces and affects the safety and comfort of road users. These cracks enable the penetration of water through the surface, leading to further deterioration of the overall road structure and an increase in maintenance costs. To strengthen and maximise overlay lifetime, anti-reflective cracking intertayers can be used that offer extended maintenance intervals. A variety of anti-cracking geosynthetic systems exist, such as SAMls, non-woven geotextiles, geogrids (plastic, glass and carbon), combigridsand steel-reinforced nettings. But how can the relative performance of these different systems be assessed? All products differ from each other in terms of dimensions, tensile strength and tensile stiffness. Although tensile strength is often the focus when comparing geosynthetics, it is not always the most important factor in the final composite performance. The dominant parameters for obtaining good anti-cracking behaviour are the 'stiffness' of the material as defined by Young's Modulus EA (material cross section A * material modulus E) and the adhesion within the pavement layers, including the existing surface as well as the overlay. |
| 出版年： | 2022 |
| 期刊名称： | Highways |
| 卷： | 91 |
| 期： | 3 |
| 页码： | 20-20 |
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