This equipment is suitable for determining the uniaxial compressive dynamic modulus of asphalt mixtures within the online viscoelastic range. The measured dynamic modulus can be used to evaluate the material properties of asphalt mixtures, and as a parameter for asphalt mixture design, asphalt pavement design, and evaluation analysis.

Uniaxial Dynamic Modulus Tester for Asphalt Mixtures

Model:LQJHQ-1

I.Product Introduction

This Asphalt Mixture Uniaxial Dynamic Modulus Tester is designed and manufactured by Hebei Tianqixingzi Inspection Equipment Co.,Ltd.in accordance with the requirements of T0738-2011,"Test Method for Determination of Dynamic Modulus of Asphalt Mixtures by Uniaxial Compression,"as specified in JTG E20-2011,"Specifications for Highway Engineering Asphalt and Asphalt Mixtures"issued by the Ministry of Transport of the People's Republic of China,and it also complies with ASTM D7058–Standard Test Method for Determination of Dynamic Modulus and Phase Angle of Asphalt Mixtures.

This equipment is suitable for testing cylindrical asphalt mixture specimens with a diameter of 100mm±2mm and a height of 150mm±2.5mm.The maximum nominal particle size of the aggregate shall not exceed 37.5mm.Under unconfined conditions,tests are conducted at temperatures of-10℃,5℃,20℃,35℃,and 50℃,using loading frequencies of 0.1Hz,0.5Hz,1Hz,5Hz,10Hz,and 25Hz.

II.Technical Parameters

1.Loading Capacity:15kN,accuracy±2.2N(non-linear).

2.Actuator Stroke:80mm,accuracy±0.0127mm.

3.Specimen Surface Deformation:±1mm,accuracy 0.003mm(non-linear).

4.Specimen dimensions:Diameter 100mm×Height 150mm.

5.Temperature control range:0℃-60℃.

6.Confining pressure:0-200kPa,accuracy 1kPa.

7.Power supply voltage:AC220V/50HZ.

8.Air supply:Requires dry air at 400-500kPa,minimum exhaust volume 2 liters/second.