TBTLWD-1 Light Weight Deflectometer (LWD)

TBT Light Weight Deflectometer LWD is a portable version of FWD, with loading cell & geophones, it can be used to test asphalt pavement & railway subbase, the data get from LWD can be used to calculate the strength of multiple pavement layers.

Technical Parameters
  • Loading device
    • Hammer：10.0kg (optional 15kg, 20kg)
    • Maximum drop height： 700mm
    • Maximum impact loading：20kN
    • Pulse loading shape: Half sine
    • Wave pulse loading duration：15~30ms
    • Material: galvanized alloy steel
    • Weight：15kg (including 10 kg hammer)
    • Height：1100mm
  • Loading board
    • Diameter：300mm (optional 200, 450mm)
    • Thickness：20mm
    • Material：galvanized alloy steel
    • Weight：15kg
  • Electronic Settlement (wireless control)
    • Loading force measurement range：25 kN
    • Loading force measurement accuracy：<2%
    • Displacement measurement range：2mm
    • Displacement measurement accuracy：< 1%
    • Measurement time per point：<1 minute
    • Sensors for displacement measuring：3pcs (expandable)
    • Data storage capacity：2000 group test data
    • Power supply：Lithium battery
    • Continuous working time：12 hours
    • Working environment temperature range：-10 ~ 40°C
    • Working environment humidity range：not more than 85% RH (no condensation)
TBTLWD-1 Light Weight Deflectometer (LWD)
Dedicated to the design and production of testing equipment for engineering projects and laboratory applications, NanJing T-Bota Scietech Instruments & Equipment Co. is a trusted enterprise in this industry. We provide customers with advanced asphalt testing equipment, concrete testing equipment, soil testing equipment, and much more to allow professionals to examine materials for various aspects prior to building projects. Better testing equipment results in better building materials used in construction, making these projects safer and longer lasting.
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