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首页> 外文期刊>Romanian Journal of Transport Infrastructure >Accelerated Laboratory Testing for Reflective Cracking
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Accelerated Laboratory Testing for Reflective Cracking

机译：加速实验室检测反射裂缝

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摘要

One of the most used methods of rehabilitation of road structures is the laying of a protective asphalt layer over a degraded concrete. The main problem of this solution is the reflective cracking, more precisely the transmission of the existing cracks in the lower layer in the asphalt pavement.The method presented in this article involves an accelerated laboratory test on specimens composed of a pre-cracked concrete slab over which an asphalt slab is glued, subjected to equivalent traffic loads. This test allows the observation of the crack propagation from the lower layer to the upper layer, until it yields, through parameters such as deformed specimen, opening and length of the crack in asphalt, but also the opening of the existing crack in concrete, relative to the number of cycles.By relating these parameters, important conclusions can be drawn about the behavior of the composite structure at reflective cracking, being able to choose the optimal recipe of the protective asphalt layer.
机译：道路结构的最常用方法之一是在降解混凝土上铺设保护沥青层。该解决方案的主要问题是反射裂缝，更确切地说是沥青路面中的下层现有裂缝的传递。本文介绍的方法涉及由预裂化混凝土板的样品上的加速实验室测试粘合沥青板块，经受等效的交通负荷。该测试允许观察从下层到上层的裂缝传播，直到它产生，通过诸如沥青中裂缝的变形样品，开口和长度的参数，而是在混凝土中的现有裂缝的开口，相对对于循环的数量。与这些参数相关，可以在反射裂缝处的复合结构的行为中绘制重要的结论，能够选择保护沥青层的最佳配方。

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