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采用美国“寿命周期费用分析”(LCCA)的方法,对比评价了某高弹性改性沥青路面与SBS改性沥青路面的经济效益。根据试验路的数据资料与计算结果表明,高弹性改性沥青路面的投资费用贴现值比SBS改性沥青路面高出72%,初期造价较高;但综合考虑路面的投资费用及用户费用,SBS改性沥青路面分析年限内总费用比高弹性改性沥青路面高出32%。因而,从全寿命周期成本的角度分析,高弹性改性沥青路面具有良好的经济效益。
The economic benefits of a high elastic modified asphalt pavement and SBS modified asphalt pavement are compared and evaluated by the method of Life Cycle Cost Analysis (LCCA) in the United States. According to the experimental data and calculation results, the investment cost of highly elastic modified asphalt pavement is 72% higher than that of SBS modified asphalt pavement, and the initial cost is higher. However, considering the investment cost and user cost of pavement, SBS modified asphalt pavement analysis of the total cost of high elastic modified asphalt pavement higher than 32%. Therefore, from the perspective of life cycle costs, highly elastic modified asphalt pavement has good economic benefits.