【摘要】 为提高建筑垃圾及铁尾矿砂的回收利用率，通过正交试验方法研究减水剂掺量、铁尾矿砂取代率、再生砖骨料取代率和水胶质量比对再生混凝土路面砖(RCPB)力学性能的影响，并通过有限元数值模拟对试验进行预测。结果表明，再生砖骨料取代天然骨料制备的RCPB力学性能有所下降，当再生砖骨料取代率低于50%时，RCPB的力学性能无明显变化；减水剂掺量为1%、铁尾矿砂取代率30%、再生砖骨料取代率50%、水胶质量比0.4时，铁尾矿-再生砖骨料混凝土路面砖的综合性能最佳。利用有限元软件计算得到的数据变化与试验结果相关性较好，表明可通过有限元模拟多种因素对RCPB的影响。更多还原

【Abstract】 To enhance the utilization efficiency of construction waste and iron tailings, the influences of water-reducing agent dosage, iron tailings substitution ratio, recycled brick aggregate replacement rate, and water-binder mass ratio on the mechanical properties of recycled concrete pavement bricks(RCPB) have been systematically investigated using orthogonal experimental design.Finite element numerical simulations have further been employed to predict the test outcomes.The findings have revealed that replacing natural aggregates with recycled brick aggregates reduces the mechanical performance of RCPB,yet substitution rates below 50% exhibit no significant deterioration.Optimal comprehensive performance of RCPB has been achieved under conditions of 1% water-reducing agent content, 30% iron tailings substitution, 50% recycled brick aggregate replacement, and a water-binder mass ratio of 0.4.Comparative analyses have confirmed that data variations derived from finite element software correlate well with experimental results, demonstrating that the finite element method has effectively simulated the impact of diverse factors on RCPB mechanical behavior.更多还原