结合宣大（宣化-大同）高速公路改建项目分析水泥混凝土路面使用性能评价原则、指标及方法。采用人工方法调查路面的损坏状况，车载式激光平整度仪测定路面平整度，摆式仪测定路面的摩擦系数，得出路面损坏状况指数PCI、路面行驶质量指数RQI、路面抗滑性能指数SRI，进而得到路面使用性能指数PQI；并采用落锤式弯沉仪测定路面弯沉值，得到路面结构强度指数PSSI。综合评定宣大高速公路现有路面使用性能，并提出相应的处治方案。

Combining the evaluation principles,indexes and methods of concrete pavement performance of Xuanda(Xuanhua-Datong)highway reconstruction projects,this paper investigated the concrete pavement distress condition by artificial methods,detected the pavement evenness with vehicle-mount-ed laser,measured the friction coefficient of road surfaces,which were used to calculate Pavement Surface Condition Index (PCI),Riding Quality Index (RQI),Skidding Resistance Index (SRI),ob-tained Pavement Quality or Performance Index (PQI).And via using the FWD to measure pavement deflections,the pavement get the pavement strength index(PSSI).Finally the paper gives the compre-hensive evaluation of the pavement performance and put forward the management measures.

对盐靖高速公路道路养护现状、路面使用性能状况等综合现状进行了分析，并根据现场调查，技术状况评估及相关设计原则，制定了具体的路面养护方案，以提高路面的使用性能，延长道路使用寿命。

The paper analyzes Yan-Jing highway maintenance status,pavement utilization performance conditions and other comprehensive status, and formulates specific pavement maintenance scheme according to filed survey,technological conditions evaluation and relevant design princi-ples,with a view to improve the pavement utilization performance and prolong pavement service life.

依据重庆地区数条高速公路的检测数据,采用基于物元法建立的综合评价模型对路面使用性能进行综合评价,并将评价结果和使用现行的路面使用性能综合评价指标PQI所得结果进行比较分析。

The paper applied the matter -element method to establish one comprehensive evaluation model of pave-ment performance, combined with testing data of Liang Wang highway in Chongqing area.Besides, this paper compared the evaluation results with the comprehensive e-valuation index PQI of existing pavement performance .

本文从路面使用性能包含的各分项指标入手，详细讲解了各指标的计算方法。结合现有规范和技术标准，提出了系统的基于路面使用性能的养护评价标准。最后通过工程实例阐述该标准在道路养护中的应用。

This paper explains detailedly the calculation method of each index belonged to pavement performance.Combines with the existing norms and technical standards,proposes the maintenance evaluation standard based on pavement performance.Final y,this paper elaborates application of the standard in road maintenance through engineering examples.

二灰碎石具有很好半刚性性能，并具有整体性能高、水稳性好、刚度大、承载能力高等优点，目前已广泛应用于我国高等级公路的基层结构设计施工中。然而，二灰碎石基层路面在早期抗压强度较低，很大程度上延长了施工工期，并且通车后的初期使用阶段的整体性能较低。因此，在经济、简单、方便的前提下，为有效提高其早期强度，确保使用质量，通过研究发现，在二灰碎石路面基层中掺加适量水泥可有效提高基层的早期强度，完全符合公路路面基层的抗压强度标准，操作简便、经济，同时可提前投入使用，有效缩短工期。

Lime-flyash crushed stone has good semi-rigid performance, and has advantages of high overall performance, good water stability, big stiffness, high load carrying capacity, hwhich as been widely used in the primary structure design and construction of China''s high-grade highways. However, lime-flyash crushed stone base pavement has lower compressive strength in the early period, largely extending the construction period, and the overall performance of the use of early stage after the opening is lower. Therefore, under economic, simple, convenient premise, in order to effectively improve the early strength, be sure to use quality, through the study, it finds that mix the appropriate amount of cement in lime-flyash crushed stone base pavement can effectively improve the early strength of Roadbed, is compliance with the road the pavement compressive strength standard, easy to operate, and can be put to use in advance, effectively shortening the construction period.