Klaruw launches advanced laser for evaluating pavement macro-texture and hydro-planing risk

Retexturing specialist, Klaruw, has added an innovative new laser to its range of surface texture testing solutions for roads, runways and race tracks.
By: Klaruw
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Race Tracks
Pavement Texture
Pavement Surface Testing



Sept. 28, 2011 - PRLog -- Klaruw’s Laser Texture Tester (LTT) uses state-of-the-art laser technology for rapid, accurate digital measurement of pavement macro-texture.  

The LTT design uses a rotating high resolution laser to scan circular tracks of pavement. Scanning 2000 points across a 400mm circumference track (127.3mm diameter), it takes just 12 seconds to complete each measurement and store resulting data.

The tester displays and stores MPD (Mean Profile Depth) in accordance with DIN EN ISO 13473/1 based upon one quarter of the circular track (100 mm). It also displays and stores ETD (Estimated Texture Depth) to DIN EN ISO 13473/1, comparable with MTD/sand patch method (ASTM E965).

Data can be copied to a laptop or PC for integration and presentation within reports and other documentation.

Klaruw’s LTT offers a number of advantages over the traditional sand patch method (ASTM E965).

The LTT provides a very convenient, fully integrated and portable unit for quick, fuss-free use on site. It can be quickly and ergonomically deployed, with the operator assuming a comfortable standing position with no need to kneel. The unit does not rely on an external power supply nor additional materials, such as water or sand, to carry out testing. The tests can also be carried out in strong wind.

Instant and highly accurate, resulting data can be used by engineers to demonstrate the need to improve macro-texture – the texture depth between pavement surface aggregate that helps disperse surface water. The equipment can also be used for post-treatment testing to assess the effectiveness of retexturing work in improving macro-texture.

The German engineered LTT instrument is currently undergoing calibration to ASTM International Standards.

Klaruw is a leading innovator of controlled mechanical retexturing plant for restoring pavement surface micro-texture and macro-texture. Its portfolio includes bush hammering, wet shot-blasting, diamond grooving and flailing machines to remedy wet skid problems on road, airfield and race track pavements.
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