Parametric study on cement-based soft-hard-soft (SHS) multi-layer composite pavement against blast load

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Abstract

An innovative cement-based soft-hard-soft (SHS) multi-layer composite has been developed for protective infrastructures. Such composite consists of three layers including asphalt concrete (AC), high strength concrete (HSC), and engineered cementitious composites (ECC). A three dimensional benchmark numerical model for this SHS composite as pavement under blast load was established using LSDYNA and validated by field blast test. Parametric studies were carried out to investigate the influence of a few key parameters including thickness and strength of HSC and ECC layers, interface properties, soil conditions on the blast resistance of the composite. The outcomes of this study also enabled the establishment of a damage pattern chart for protective pavement design and rapid repair after blast load. Efficient methods to further improve the blast resistance of the SHS multi-layer pavement system were also recommended.

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Wu, J., Liu, X., & Chew, S. H. (2015). Parametric study on cement-based soft-hard-soft (SHS) multi-layer composite pavement against blast load. Construction and Building Materials, 98, 602–619. https://doi.org/10.1016/j.conbuildmat.2015.08.046

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