TESTS OF SOFTENING UNDER LOAD AND COMPRESSIVE CREEP OF QUALITIES R-COR.PI-FO AND R-COR-PO-FO, AS PER EN-ISO 1893:2008 AND UNE-EN 993-9 NORMS.

The Technical Department of TEIDE REFRACTORY SOLUTIONS S.L. continues to undertake trials in order to characterize their materials accurately and to give to our customers a specific solution for each situation.

In this matter has developed, (following previous post) the creep in compression according to the actual legislation as per UNE-EN 993-9 Norm, with the qualities R-COR-PI-FO and R-COR-PO-FO, as well as the refractoriness under constant load, as per EN-ISO 1893:2008, Norm.

The trial involves heating the sample evenly and applying a load constant equal to 0.2 N/mm2, thus analyzing the softening under load.

Fig. 1 Refractoriness Test under load

The type of graphics obtained from this test is the exposed in Fig. 2, where you can see that the test-bodies once exceeded a certain temperature, will soften and begin to deform due to the constant load applied.

Fig. 2 Example of refractoriness under constant load.

Following it is shown the results of the refractoriness tests under constant load of the two studied qualities:

• Temperature T 0,5, es the one to which the test tuve deforms 0.5%.

• Following this researching way, TEIDE REFRACTORY SOLUTIONS, has developed the test to determine the creep in compression as per UNE-EN 993-9 Norm, with the qualities R-COR-PI-FO and R-COR-PO-FO. This test consists in submitting a constant load to the studied piece, raising the temperature and keeping it along 25 constant hours, carefully scoring the deformation in each time, as it is shown under these lines in the following information.

• The type of graphic obtained after these tests is shown as follows:

Fig. 3 Example of the creep in compression

• The result obtained for the qualities R-COR-PI-FO and R-COR-PO-FO at different temperatures is the one detailed as follows:

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