Yu, J. H. and Dai, L. Strain rate and interfacial property effects of random fibre cementitious composites. Journal of Strain Analysis for Engineering Design, 2009, 44: 417–425. DOI: 10.1234/03093247JSA513. This article has been retracted at the request of the Editor and the Publishers. Reason for Retraction: The results of a plagiarism investigation showed that the authors of this work (Yu, J. H., and Dai, L) are in breach of the agreement that they signed in their Licence to Publish Form for JSA513, having copied substantial portions of material from the following: Yang, E. H. Designing added functions in engineered cementitious composites. Ph.D. Dissertation, University of Michigan, 2008. Yang, E. H. and Li, V. C. Rate Dependencies in Engineered Cementitious Composites. Proceedings of International RILEM workshop on HPFRCC in structural applications, Honolulu, Hawaii. Published by RILEM SARL, pp. 83–92, 2005. Redon, C., V. C. Li, C. Wu, H. Hoshiro, T. Saito, and Ogawa, A. Measuring and Modifying Interface Properties of PVA Fibers in ECC Matrix. ASCE J. Materials in Civil Engineering, 13 (6): 399–406, 2001. We apologize that this was not detected during the peer review process in 2009.