腾达试验仪器厂：

　　沥青混合料路用性能试验仪主要用于评估干燥或潮湿条件下沥青混合料的A变形（车辙）、疲劳断裂和潮湿敏感性。本系统是在已有（美国）LAPA-1沥青路面分析仪技术上消化吸收并改进提高的，更接近我国《公路沥青及沥青混合料试验规程》对试件的要求和我国路面实际情况。进行一次完整的A变形评估测试需要2小时15分（8，000次循环）。疲劳断裂测试时间取决于被评估系统的疲劳状况。

　　Asphalt mixture road performance tester is mainly used to evaluate the A deformation(rut),fatigue fracture and moisture sensitivity of asphalt mixture under dry or wet conditions.This system is based on the existing(US)LAPA-1 Asphalt Pavement Analyzer technology,digests,absorbs,improves,and is closer to the requirements of China's"Highway Asphalt and Asphalt Mixture Test Rules"for test specimens and the actual situation of our country's pavement.It takes 2 hours and 15 minutes to perform a complete A deformation assessment test(8,000 cycles).The fatigue fracture test time depends on the fatigue condition of the system being evaluated.

　　沥青混合料路用性能试验仪技术参数：

　　★可进行动态模量试验、流变次数和流变时间的沥青试验，用于沥青混合料路用性能评估，得到的动态模量主曲线能用于路面结构设计。

　　★能**评价及预测混合料的真实性能。

　　★可完成三个基本性能试验：动态模量试验；重复加载A变形（流变次数）试验；静态蠕变（流变时间）试验。

　　★加载能力：15 kN（静载），13.5 kN（动载）。

　　★作动器冲程：30 mm。

　　★试件尺寸：100 mm直径x 150 mm高。

　　★温度控制范围：4～60°C。

　　★围压：0～210 kPa。

　　★外形尺寸：1330X630X1100mm

　　★重量：250kg

　　Technical parameters of asphalt mixture road performance tester:

　　★Asphalt test with dynamic modulus test,rheological times and rheological time can be used to evaluate the road performance of asphalt mixtures.The main curve of dynamic modulus can be used in pavement structure design.

　　★Can evaluate and predict the true performance of the mixture.

　　★Three basic performance tests can be completed:dynamic modulus test;repeated loading A deformation(rheological number)test;static creep(rheological time)test.

　　★Loading capacity:15 kN(static load),13.5 kN(dynamic load).

　　★Actuator stroke:30 mm.

　　★Test piece size:100 mm diameter x 150 mm height.

　　★Temperature control range:4～60°C.

　　★Confining pressure:0～210 kPa.

　　★Dimensions:1330X630X1100mm

　　★Weight:250kg

　　沥青混合料路用性能试验仪的A变形（车辙）敏感度的评估，是通过将条块形可柱形的试样放在可重复进行的车轮荷载下测量其轮迹处的A变形量而得出的。本系统具有自动数据采集系统测量车辙数据，并以数值和图形方式显示。每经过条形试样或六个圆形试样（A大为113kg/250lbs），相对应的接触压力A大可达1.4Mpa。三个条形试件或六个圆形试件（可由旋转压实机、振动压实机、马歇尔仪、或道路取芯获得）放入特制的模具内在可控的高温、干燥或浸水环境下作测试。

　　The evaluation of the A deformation(rut)sensitivity of the asphalt mixture road performance tester is performed by measuring the A deformation at the wheel track by placing a strip-shaped columnar specimen under a reproducible wheel load.Drawn.The system has an automatic data acquisition system to measure rut data and display it in numerical and graphical ways.After passing through a strip sample or six round samples(A is 113kg/250lbs),the corresponding contact pressure A can reach 1.4Mpa.Three strip test pieces or six round test pieces(obtained from a rotary compactor,a vibratory compactor,a Marshall instrument,or a road core)are placed in a special mold under a controlled high temperature,dry or immersed environment For testing.

　　沥青混合料路用性能试验仪的疲劳耐久性，可以通过将梁形试件放在低温环境下，用可控数值和接触压力的重复轮载进行试验来测定。在可控高温的干燥或浸水环境下，同时可进行三个条形试件或六个圆形试件（搓揉成形或现场取芯试件）的试验。

　　自动数据采集系统具有测疲劳软件。疲劳软件将条形试件两端的测量值平均，画出一条参数实线。在条形试件中间获得一个测验量值，画出一条点划线。随着疲劳增加，两条曲线分叉增加，在试样断开时，曲线迅速爬升。

　　The fatigue durability of the asphalt mixture road performance tester can be determined by placing the beam-shaped test piece in a low-temperature environment and performing repeated wheel load tests with a controlled value and contact pressure.In a controlled high-temperature dry or immersed environment,three strip test pieces or six round test pieces(kneading or field coring test pieces)can be tested at the same time.

　　The automatic data acquisition system has fatigue testing software.The fatigue software averages the measured values at both ends of the bar specimen and draws a solid line of parameters.Obtain a test value in the middle of the strip test piece and draw a dotted line.As fatigue increases,the two curves diverge,and the curve climbs rapidly when the specimen is disconnected.

　　沥青混合料路用性能试验仪本系统一次可容纳三个样品，可测试振动压实机（条形或圆形）、旋转压实机、马歇尔仪获得的样品，以及现场取芯、铺板试样。LAPA-1车辙和疲劳测试的作用：在设计阶段预测沥青混合料的车辙和疲劳潜力；防止铺设不合格的材料；监控工厂生产混合料质量；鉴定沥青混合料设计的质量、节省开支；加速性能测试。

　　Asphalt Mixture Road Performance Tester This system can hold three samples at a time,which can test the samples obtained by vibration compactor(strip or round),rotary compactor,Marshall instrument,and on-site coring and planking samples..The role of LAPA-1 rutting and fatigue testing:predicting the rutting and fatigue potential of asphalt mixtures during the design phase;preventing the laying of unqualified materials;monitoring the quality of plant production mixtures;identifying the quality of asphalt mixture designs and saving expenses;accelerating performance test.

　　沥青混合料路用性能试验仪本方法描述用LAPA-1测试沥青混合料疲劳特性的测试步骤。

　　Asphalt Mixture Road Performance Tester This method describes the test procedure for testing the fatigue characteristics of asphalt mixtures with LAPA-1.