EVD dynamic deformation modulus tester

EVD dynamic deformation modulus tester
 Evd Light drop Weight Deflectometer
 Pavement dynamic deformation modulus tester
 
It is     
 used to determination of subgrade under dynamic load bed surface and the deflection in the transitional period of graded crushed stone value (Evd), to assess the subgrade bearing capacity and deformation. This product conforms to the industry standard of the People's Republic of 
 China "regulations of deformation modulus Ev2 test (try out)"                    
 Technical parameters:
 Maximum impact force:7.07KN  Duration of shock:18.0±2.0ms
 The load board:diameter:300mm，thickness:20.0mm
 Subsidence test range:0.1~2.0mm±0.02mm
 EVD Measuring range:10----225MPa
 Power: 4XR6 battery
 To adapt to the temperature range:0--50  
 storage:200 groups of test curve