Light Weight Deflectometer - LWD
The Lightest and Quickest Way to Determine Compaction Quality
ASTM Standard D2583
The Dynatest Light Weight Deflectometer (LWD) is a portable version of the Falling Weight Deflectometer (FWD). The Light Weight Deflectometer uses a load cell and geophones with the same accuracy as the Falling Weight Deflectometer. The LWD can be used to test thin asphaltic pavements, recycled materials bound with foamed bitumen and directly test the unbound subbase and subgrade. The output from the LWD can be used to calculate the strength of multiple pavement layers.
LWD Benefits
- One person operation
- Rapid test allows close test point spacing ensuring homogeneity of the test section
- Modulus output at time of test
Assessment of both the compaction and stiffness of material with the same unit - Quality control of the subbase layers and subgrade before an overlay is applied Testing of trench restorations to reduce the chance of settlement over time
Dynatest recently launched the upgraded Light Weight Deflectometer (LWD) model 3032, providing users with a set of new advanced features and benefits for both the Hardware and Software.
Key benefits of the upgraded LWD
- Improved battery life (up to 50 hours idle time per charge)
- Micro-USB charging port
- Ability to perform tests while charging
- Enhanced Bluetooth module with higher stability and extended range
- Data Collection with your phone using the cross-platform (Android/OS/Windows)
- Enhanced Data Collection Mobile App in Lite and Pro mode
- Enhanced Data Analysis App in Lite and Pro mode