The yard of a port project in Kenya requires high-compressive-strength CBGM.Since the compressive strength of cement bound material is generally low in China,the mix ratio is difficult to satisfy the technical specifications.Therefore,we analyze the influence of skeleton structure on material strength from the aspect of aggregate grading through a large amount of tests and design the proper mix ratio of CBGM which satisfies the technical requirements.It is known from summarization of laws for multiple groups of mix ratios that CBGM of skeletal dense structure has higher compressive strength.