When developing and optimizing car and truck tires, tests on tire acoustics and braking and abrasion behavior on standardized test tracks have been essential for many years. Hahlbrock was able to meet the desire of well-known tire manufacturers to conduct these tests in conditioned test chambers regardless of the weather and season by developing and manufacturing various cylindrical road shells made of composite materials.
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Andreas Hahlbrock
Phone: +49 (0) 5033 938-12
Email: andreas.hahlbrock@hahlbrock.de
The challenge in producing covering shells made of GRP is to transfer the porous asphalt grain from the plane to a cylindrical surface that is as gap-free as possible.
The surface structure of an asphalt test track is first molded with an elastic matrix and in a second special manufacturing process transferred to several part-circular, usually thick-walled shells made of GRP. These are then assembled into a full circle on a tire manufacturer’s drum and represent a short section of the original test road with high dimensional accuracy.
The fiber composite material gives the road shells, which are rotating with the test drum, their high mechanical strength. The road shells are hardened on the embossed surface in a multi-stage process and thus very resistant against abrasion for synthetic resin-bonded materials, even under high contact loads from truck tires.
Client:
Continental Reifen Deutschland GmbH
RENK Test System GmbH
Bridgestone Europe NV/SA TCE
Year of manufacture: 2010, 2011, 2012, 2014, 2020
Installations:
Continental Germany, Hannover
Renk Test System, Augsburg
Bridgestone Europe NV/SA TCE, Aprilia, Italy
