Standard Practice for Determining Aggregate Source Shape Values from Digital Image Analysis Shape Properties
从数字图像分析形状特性确定聚集源形状值的标准实施规程
AASHTO R 91-18涵盖了骨料来源和来源混合形状特征的测定
使用灰度分析和通过数字图像分析确定的形状特性。
This standard covers the determination of aggregate source and source blend shape characteristics using gradation analysis and shape properties determined by means of digital image analysis.This standard was formerly designated as provisional standard PP 64.