engleski

Fire-resistant composite tunnel segments

In this paper the results of testing on fire loads on different combinations of composite prefabricated concrete elements are presented. The testing was done according to standard measuring curve used for tunnel fires on elements dimensions 100×80×30 cm. The thermocouples were embedded in the elements, so the temperatures in the furnace and in the elements had been exactly controlled. The results of testing have given the directions for the future researches, which would lead toward optimalization of composite materials in giving good fire resistant performance of tunnel segments.

secondary tunnel lining; precast concrete elements; testing on fire loads

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