Rapportage inventarisatie enkelvoudige voegen - Curnet
Rapportage inventarisatie enkelvoudige voegen - Curnet
Rapportage inventarisatie enkelvoudige voegen - Curnet
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Appendix Questionnaire<br />
CONCEPT 26/5/2003<br />
Dear Sir,<br />
I assume you are familiar with the fact that Rijkswaterstaat as a government organisation in<br />
The Netherlands is the owner of the motorways, canals, rivers and storm barriers.<br />
A survey of maintenance costs showed that after resurfacing projects, the maintenance and<br />
replacement of single seal joints is the major origin of expenses for motorways.<br />
Therefore Rijkswaterstaat has initiated an internal quality improvement project for single seal<br />
joints which consists of the following phases:<br />
1. Survey and analysis of problems<br />
2. Discussion with nabouring countries about their experiences<br />
3. Proposals for better design, fabrication, installation etc. laid down in specifications<br />
4. Proposals for maintenance<br />
For phase 2 we would like to discuss with the Ministry of Transport in Flanders and Wallony<br />
and the BASt in Germany the following subjects:<br />
1. Types of single seal joints<br />
If used, what are the experiences with:<br />
• Epoxy nosings with bonded seals<br />
• Steel nosings anchored in epoxy<br />
• Steel nosings anchored in concrete<br />
• Steel nosings in polymeric concrete<br />
• Bituminous joints<br />
• Flexible plug joints<br />
• Buried joints<br />
• Finger joints<br />
• Mat joints<br />
Are types excluded?<br />
2. Design<br />
Are traffic loads and movements from standards and measurements used for design<br />
calculations and verification tests? When tests are carried out, which boundary<br />
conditions are used and do they include the most adverse design situations? What<br />
design life is aimed at? Are the structures tested and evaluated with respect to the<br />
brittleness and the risk of crack propagation<br />
Is there a tendency to avoid joints in bridge structures?<br />
70 <strong>Rapportage</strong> <strong>inventarisatie</strong> <strong>enkelvoudige</strong> <strong>voegen</strong>