Asphalt Tester | Modified Light Weight Deflectometer

The device hardware can be taken apart into three component blocks that can easily be lifted by one person and transported in any passenger car. At the test site, the operator swiftly reassembles these three blocks in a few simple steps. When put together, the ZORN Asphalt Tester does not require a separate trolley or similar device for transport on site. The operator simply rolls the device comfortably between measuring points on large, integrated wheels. Once there, the drop weight section is moved from transport into the measuring position with a click and testing can begin.

The ZORN Asphalt Tester is controlled wirelessly by means of a tablet computer. The tablet computer is connected to the sensors of the tester via Bluetooth (acceleration & temperature). The easy-to-use control software also offers the possibility to seamlessly create test reports and send them to co-workers or clients online. ZORN Asphalt Tester - consistently digital and connected!

• Modified Light Weight Deflectometer
• For release tests according to "Supplementary notes on opening asphalt pavements to traffic" (H VVA), FGSV Germany, edition 2022
• Test plunger (non-bevelled, flat surface, diameter 50 ±0.1 mm)
• Loading mechanism with 15 kg drop weight
• Max. impact force 9,42 kN, impact duration 17 ±1,5 ms
• MEMS acceleration sensor for precise deflection measuremnts
• Temperature sensor for monitoring the asphalt surface temparature
• Temperature range asphalt surface ≤ 60° C
• Robust outdoor tablet computer 8‘‘ with ZORN H VVA App for wireless device control, automated data collection and calculation of release coefficient AVF, production of complete protocols according to H VVA
• Two integrated, temperature resistant wheels for comfortable transport and moving the device between measurement positions.
• Transport case
• Expandable with asphalt modulus measurement kit for determination modulus measurement E_vd Asphalt (ZORN INSTRUMENTS 2010)