Laser scanning based asphalt mixture section gap determination method

The invention relates to the field of asphalt mixture performance evaluation methods, in particular to a laser scanning based asphalt mixture section gap determination method. The laser scanning basedasphalt mixture section gap determination method designed by the invention includes the steps of: 1) preparing a Marshall test piece; 2) scanning the section of the test piece; 3) utilizing image analysis software to conduct image enhancement pretreatment and threshold segmentation treatment on a collected section scanning original image in order to obtain a section scanning optimized image; 4) measuring section gap index; and 5) carrying out statistical calculation of section gap characteristics. The laser scanning based asphalt mixture section gap determination method provided by the invention can achieve more comprehensive and accurate measurement of the asphalt mixture internal gap characteristics. 本发明涉及沥青混合料性能评价方法领域，尤其涉及种基于激光扫描的沥青混合料断面空隙的测定方法。本发明所设计的基于激光扫描的沥青混合料断面空隙的测定方法包括以下步骤：1)制备马歇尔试件，2)扫描试件的断面：3)利用图像分析软件对