The Asphalt Mixture Hydrothermal Sensitivity Tester evaluates the stability of asphalt mixtures under wet and high-temperature conditions. It measures water-induced damage resistance and the Tensile Strength Ratio (TSR), providing reliable data for pavement design and material optimization.

Asphalt mixture hydrothermal sensitivity tester

Model:LQJHW-0777A

I.Product Introduction

Compacted asphalt mixture samples are placed in a closed space and subjected to cyclic pressure approximating the Lorentz function.This simulates the mechanism of water damage caused by car tires passing over wet asphalt mixture pavements.The obtained specimens are then subjected to subsequent related tests to evaluate the water damage of the asphalt mixture.

II.Principle

This equipment uses cyclic pressurization to provide an accelerated working condition.The test temperature is controllable,and pore water pressure can be generated in the asphalt mixture specimen.Compared with the time that asphalt mixtures are subjected to under normal temperature and conventional traffic conditions,this equipment can provide a faster external effect.This accelerated environment is designed to simulate the internal stress in the road surface when a car tire passes over a wet road surface.

The specimens inside the sealed test chamber are simultaneously subjected to three effects:immersion in water,high temperature,and cyclic pressure.This not only reduces the adhesion between asphalt and aggregate,causing damage,but also softens the asphalt,thereby reducing the cohesion within the asphalt and causing damage.

III.Product Features

1.Employs industrial computer display and control,simple operation,and can save working parameters.Real-time display of relevant parameters.

2.Can simulate water damage to asphalt mixture pavements.

3.Short test time;tests can be completed in just a few hours.

4.Different pressures and temperatures can be selected for testing.

5.Multiple Marshall specimens,rotary compaction specimens,and rutted surface specimens can be placed in a single test.

6.Water addition and venting are automatically completed during the test.

IV.Technical Parameters

Maximum Temperature:60℃

Cylindrical Specimen

Diameter:φ100mm-φ150mm

Temperature accuracy:±1℃

Height:25mm-150mm

Loading pressure:200KPa~400KPa

Rut slab specimen

Dimensions(L x W):400mm x 300mm

Pressure accuracy:±30KPa

Height:25mm~100mm

Power supply:(AC220±10%)V,50Hz

Total power consumption:1.5KW

Dimensions:1120 x 760 x 1000(mm)

Weight:300kg