In Iraq, there are some asphalt concrete mixtures suffer from appearing of cracking and deformation immediately after finishing the construction of a base course. In the flexible pavement, the pavement is considered to be degraded after opening to traffic by repeated traffic loading, climatic conditions, aging of asphalt mixture, etc. Crack plays a critical mode in pavement degradation. Several experimental studies have been carried out to gain a deeper understanding of the environment and weak construction monitor the action of pavement fractures. However, one downside of these previous studies was that the majority of them were carried out in a laboratory environment. A trial road section was studied after finishing base course construction by monitoring the early cracking. The major causes of appearing the early cracking have been investigated and debated. In this survey, three trial road sections with defined asphalt layers were considered. These trial sections were constructed with local materials brought from Nasrya refinery and Najaf quarry. On the basis of the findings obtained, two sections have deteriorated, while the third one was made as control for comparison purposes The observed early cracking could be attributed to the asphalt cement type and poor construction procedure occurring in an asphalt base layer as a result of low underlying sub-base course type and specifications.

在伊拉克，有一些沥青混凝土混合料在基层施工完成后立即出现开裂和变形。在柔性路面中，由于反复的交通荷载、气候条件、沥青混合料老化等原因，路面在通车后被认为发生了退化，裂缝是路面退化的关键模式。为了更深入地了解环境和薄弱的施工监测路面裂缝的作用，已经进行了几项实验研究。然而，这些先前研究的一个缺点是其中大部分是在实验室环境中进行的。通过监测早期开裂，对基层施工完成后的试验路段进行了研究。对出现早期裂纹的主要原因进行了调查和争论。在本次调查中，考虑了三个具有明确沥青层的试验路段。这些试验段是用从 Nasrya 炼油厂和 Najaf 采石场带来的当地材料建造的。根据所获得的结果，两个部分已经恶化，而第三个部分作为对照进行比较。低基础课程类型和规格。