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本文评述了混凝土道面Ｄ开裂的国外研究情况．介绍了Ｄ开裂的产生机理及预防措施，以及骨料的评定方法．
This paper reviews the overseas research on cracking of concrete pavement D. Introduced the mechanism and precautionary measures of D cracking, and the method of aggregate evaluation.