泡沫填充混凝土(FFC)有望成为工程材料拦阻系统(EMAS)的新型拦阻材料，针对其准静态压缩力学性能进行研究，制作了 6 种不同聚苯乙烯泡沫(EPS)掺量(以体积分数计)的 FFC 试件进行准静态压缩实验． 通过对实验数据的分析，对材料的应力 － 应变曲线进行分段拟合，建立了拟合参数与 EPS 掺量的关系，进而建立了 FFC 材料的准静态压缩本构模型． 结果表明:FFC 材料准静态压缩应力 － 应变曲线可分为 3 个阶段，即弹性段、塑性平台段和密实段;FFC 抗压强度随 EPS 掺量增大而降低;本构模型与实验结果吻合较好，能较为准确地描述不同 EPS 掺量 FFC 材料的压缩力学性能．

The foam-filled concrete (FFC) is expected to become a new type of arresting material for the engi- neered material arresting system (EMAS). In order to investigate the mechanical properties of the FFC material un- der the quasi-static compression,six FFC specimens of different expanded polystyrene (EPS) fractions (volume fraction) were manufactured to carry out the quasi-static compression experiments.Then,by analyzing the experi- mental data,the stress-strain curves were fitted by using sectional curves,and the relationships between the fitting parameters and the EPS fraction were determined.Finally,a constitutive model of the FFC material under the qua- si-static compression was constructed.The results show that (1) the stress-strain curve of the FFC material under the quasi-static uniaxial compression can be divided into three parts,namely,the elastic stage,the plastic platform stage and the densification stage; (2) the compressive strength of the FFC material decreases with the increase of the EPS fraction; and (3) the constructed constitutive model accords well with the experimental data，and can ac- curately describe the compressive mechanical properties of the FFC material of different EPS fractions．