LI Z, LIU Y, LIU J.Research on characteristics of meso-skeleton structure of cement-stabilized rock material[J].Journal of Henan Polytechnic University(Natural Science) ,2023,42(2):175-181.

doi:10.16186/j.cnki.1673-9787.2021010132

Received:2021/01/29

Revised:2021/05/12

Published:2023/03/25

Research on characteristics of meso-skeleton structure of cement-stabilized rock material

LI Zhi1, LIU Yong1, LIU Jian2

1.School of Civil Engineering and Transportation，South China University of Technology，Guangzhou  510641，Guangdong，China；2.Department of Civil and Environmental Engineering，Virginia Polytechnic Institute and State University，Blacksburg  24061，Virginia，USA

Abstract:In order to evaluate the influences of different factors on the meso-skeleton structure of cement-stabilized rock material（CCRM），a new evaluation index for the skeleton structure of CCRM was proposed from a meso-level perspective and its validity was verified.The results showed that the evaluation results of this index were consistent with engineering practice and previous research.The skeleton index tended to be stable after the rotary compaction molding method reached a certain number of compactions，and a better skeleton structure was obtained after the vibration molding reached a certain vibration time.Continued vibration would cause the aggregate to segregate vertically.Rotary compaction could obtain better cross-sectional skeleton indicators，and vibration molding could obtain better longitudinal cross-sectional indicators.Using this index to evaluate the skeleton characteristics of different molding methods had certain guiding significance.

Key words:cement-stabilized rock material;digital image processing;skeleton structure;molding method

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