Railway / Road Testing Equipment Evd Light Drop Weight Deflectometer

Railway / Road Testing Equipment, Evd Light drop Weight Deflectometer, Pavement dynamic deformation modulus tester

Application fields

Pavement, railway, earthwork project

Kennel soil mass quality inspection

Construction bedding quality inspection

Pile hole, trial boring quality inspection

Construction foundation frame deformation modulus inspection

Main functions

Fast measure of roadbed reaction coefficient K value

Fast measure of roadbed elastic modulus E value

Display loading, acceleration, speed, displacement wave

Display 0-p time value and integration

Technical specifications

Loading device

Drop hammer weight: 6.0kg (10/20kg optional)

Drop height: 50-550mm

Max impact loading: 20KN

Impulse loading shape: half sinusoid

Impulse loading duration time: 15-30ms

Material: zinc-plated steel/ alloy steel

Bearing plate

Diameter: 100mm (200/300 optional)

Thickness: 15mm

Material: zinc-plate alloy steel
Electric settlement meter

Loading testing range: 3kN

Loading testing accuracy: <2%

Displacement testing range: 5mm

Displacement testing accuracy: < 2%

Point testing time: 1min

Displacement sensor amount: 1pc (extensible)

Impulse loading shape: half sinusoid

Impulse loading duration time: 15-30ms

Storage amount: 2000 groups testing curve

Power supply: lithium battery

Working ambient: -20 ~ +60℃

Humidity: <85%RH

Height: approx.1100mm

Weight: approx.15kg (including 6kg drop hammer)