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3. Manufacturing and Installation
How is dealt with the manufacturing an installation procedures and quality control aspects? Do
internal or external institutions carry out manufacturing and installation inspections?
All steel parts are subjected to quality control system of the manufacturer. In Germany this demands an
external quality control (“Fremduberwachung”). Incidental checks are performed by principal. On
construction site steel parts are visually inspected mainly on damages. Anchoring and reinforcement are
checked by qualified personal from principal.
4. Inspection and Maintenance
Who is carrying out inspections and the evaluation of the results?
Inspections are performed conform a standardised regime (Bauwerksprufung, DIN 1076). Detailed technical
inspections are performed each 6 years (Hauptprufung) and each 3 years a more global visual inspection
(Einfache Prufung). These inspections are performed by specialists from the managing authority. Each year a
visual check is performed by personal of the regional road maintenance operating centre. Results of the 3
and 6 years inspection are registered, and are available during following inspections.
Is maintenance subject to standard procedures and how is dealt with traffic measures (lane closures
etc.)? What type related damages are found?
Do specific materials and construction types show specific damages?
The standard type (steel nosing anchored in concrete) needs no maintenance during its life time,
besides some routine maintenance such as repairing seals between steel parts and pavement. Gutters
formed by rubber profiles are self cleaning under intense traffic. Parts with low traffic intensities may
have to be cleaned. Incidental rubber profiles have to be replaced, when they are damaged and no
longer watertight, by incidental causes like perforation by sharp objects. End of life time of rubber
profiles coincides with deterioration of steel clamp profiles in most cases. Exchange of rubber profile
only in this case is likely to result in new damage relatively soon. After end of lifetime the entire joint (or
possibly in segments per lane) is replaced. Closure of lanes is restricted to weekends (Friday 20 until
Monday 6 o’clock).
Maintenance of existing bituminous joints was not discussed 23rd June. Bituminous joints are frequently
damaged and are regarded to be not durable under heavy traffic conditions until now.
5. Replacement
How is dealt with replacement? Are the working lives of the joint types evaluated, also in relation to the
traffic distribution, volume, environmental conditions, de-icing agents etc.?
See maintenance. Additional remarks: Working lives are not evaluated systematically, nor are they
related systematically to traffic volumes etc. Life times are based on expert opinion/experience.
Results Wallony
The Wallony experiences were discussed in a meeting in Namen June 27 th 2003.
Participants:
Wallony:
Victor Caby, Pascal Massart; Direction Generale des Services techniques, Ministere de L’equipment et
de Transportes (MET)
Netherlands:
Han Leendertz, Nico Booij, Leo Klatter; Bouwdienst Rijkswaterstaat
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