Determination of the soil bearing capacity and compaction quality of soils and non-cohesive subbases the dynamic plate load test employing the Light Drop-Weight tester is used in earth work and road construction to determine the soil bearing capacity and the compaction quality of soil and non-cohesive subbases, as well as for soil improvement applications. The test method is suited for coarse-grain and mixed-grain soil shaving maximum grain size of 63mm. The test method may be used to determine the dynamic modulus of deformation of soil in the range Evd =15...70MN/m2.

Applications include
• Road construction
• Testing of pavement bedding
• Compaction monitoring in pipe trenches and cable ducts
• Quality assurance in canal construction
• Railway construction
• Foundation back fill

• Preparing the plain ground
• Place the load plate on plain ground such that full-area support is ensured.
• Position the loading mechanism on the load plate.
• Interconnect the settlement, measuring instrument and the load plate by the measuring cable.
  Disengage shipping & handling lock.

• Switch on the settlement measuring instrument.
• Arrange device in vertical position.
• Perform three impacts in succession.
• The settlement amplitudes S1, S2 and S3 are displayed on the screen.
• After the third measurement the mean settlement Sm and the computed
  Evd value are displayed.
• In addition, the device determines the path-to-speed ratio and
  settlement curve.
• via Thermal printer
• Printing of measured data from memory for
  documentation purposes at anytime and anyplace.

The series of measured data comprises:
• Date
• Time
• Settlements
• Settling speed v
• Path-to-speed ratios/v
• Dynamic modulus of deformation Evd
• Settlement curve
• Up to 200 series may be stored.

  via Personal computer

Apart from printing series of measured data by using a thermal printer, they may be also
transferred to a PC

• Establish the connection between the PC and the settlement measuring instrument.
  Read in the series of measured values.
• Comfortable processing of the protocol by means of a special software program.