Dynatest improves its falling weight deflectometer

The pavement engineering firm Dynatest has unveiled its new, Fast Falling Weight Deflectometer (FastFWD). The FastFWD enable users to collect pavement structural data faster than ever before.
January 6, 2017 Read time: 2 mins

The pavement engineering firm 2597 Dynatest has unveiled its new, Fast Falling Weight Deflectometer (FastFWD). The FastFWD enable users to collect pavement structural data faster than ever before.

Dynatest said its FastFWD Model 8012, which was on display at the Transportation Research Board annual meeting in Washington DC this past January, is five times faster than the previous model.

The FastFWD Model 8012 collects 75% more test points per hour.  This means that it can have approximately 45% less traffic exposure. The previous FWD Model 8000 is upgradable to the FastFWD 8012 specification.

The FastFWD patented electro-mechanical system removes the use of hydraulics, making onsite maintenance easy as well as reducing overall maintenance and service costs  However, it has the same sensor setup and user interface as previous FWD models so no major training of operators is needed. The FastFWD is available as a trailer- or truck-mounted version and meets all FWD standards worldwide.

The FastFWD applies a dynamic load that simulates the loading of a moving wheel. The pavement response is analysed with Dynatest's ELMOD (Evaluation of Layer Moduli and Overlay Design) software to determine the elastic moduli, stresses and strains of each modelled layer. ELMOD reports the weakest layer of failure, residual life and determines the optimum rehabilitation alternatives.

Road Markings, Barriers & Workzone Protection

For more information on companies in this article

Related Content

  • Rapid adoption of GPS machine control
    April 5, 2012
    The high sophistication of GPS machine control systems has resulted in a fast pace of technological advancement. The three major players in the machine control sector, Leica Geosystems, Topcon and Trimble have all made major gains in recent years. The sophistication of the latest systems can combine satellite position data from the GPS and GLONASS networks with information from total stations to provide precise, high speed machine operation. Further more the firms have also prepared themselves for the intro
    Read More
  • Safety trials for FORUM8 cycle simulator
    August 17, 2020
    Research by Morgan State University in the US using linked up driving and cycling simulators could help with safer urban road designs for both drivers and cyclists.
    Read More
  • Advances in aggregate production machines
    October 27, 2016
    Aggregate production equipment continues to become more efficient and more productive as development continues – Mike Woof writes During 2016 all the major aggregate production equipment specialists have put a good deal of new machines on the market, highlighting their investment in research and development. These firms are also investing in developing their facilities, with new manufacturing capability coming on stream. Materials washing specialist CDE Global is now offering its modular M-Series wash
    Read More
  • Pavement recycling using cement
    July 12, 2012
    Carlos Jofré, technical director of the Spanish Institute of Cement and its Applications (IECA), introduces, on behalf of EUPAVE*, a sustainable technique to rehabilitate fatigued pavements Recycling of pavements is a technique whereby an existing degraded pavement is modified and transformed into a homogeneous structure that can support the traffic requirements. More specifically, it involves reusing the materials from the existing pavement for the construction of a new layer, including the pulverisation o
    Read More

Highlighted Content