Objective
The major performance characteristics required from roofing materials are dimensional stability, resistance to flow, tensile strength, flexibility at low temperatures. While there is reasonable agreement among testing laboratories for the three first properties, different methods were still in use for the cold bending test leading to discrepancies of +/- 6 C between laboratories for a test at about 20 C. The task of the contractor was to improve the method initially developed by himself, to make it more reliable.
RESULTS
The tests on at least 10 different materials have shown that the speed of deformation was not very critical, that the diameters of the mandrel on which specimens are bent should not be too small (30 mm is preferred) and that results are more consistent when the cylinders of the bending device are spring-loaded
A limited round robin involving three laboratories indicated that the differences between laboratories could be redued to about +/- 3 C with the improved method. The final report was offered to CEN for the preparation of the standard.
Fields of science (EuroSciVoc)
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.