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根据茂湛二期建设项目实际情况(材料状况、气候条件),就沥青混凝土下面层提出了原材料和混合料设计的各项技术指标,全面、系统地介绍了茂湛二期改进型AC-25I沥青混合料下面层设计的过程,包括级配选择、最佳用油量确定以及相关验证试验。最后,根据实践经验总结了几点沥青混合料设计的建议和心得。
According to the actual situation (material status and climatic conditions) of Maozhan Phase II Construction Project, various technical indexes of raw material and mixture design were put forward for the lower layer of asphalt concrete, and comprehensively and systematically introduced Maozhan II improved AC-25I The process of designing the asphalt mixture below, including gradation selection, determination of the optimum fuel consumption and related verification tests. Finally, based on practical experience summed up the suggestions and experiences of bituminous mixture design.