Fire Resistance Test 2
Fire Resistance Test 2 : A test to enable elements of construction to be assessed according to their ability to retain their stability, to resist the passage of flame and hot gases and to provide the necessary resistance to heat transmission. A fire test for structural elements is specified in BS 476 pt 8. The specimen is heated progressively in an accurately controlled furnace. The temperature of the furnace varies with time as closely as possible to an international standard and is set out in graph form -called the time-temperature curve. The fire resistance of an element is the time in minutes from the start of the test until failure occurs under one of three criteria, stability, integrity and insulation, if all are appropriate to the particular type of element being tested. If no failure occurs the test is terminated after 3 hours. Three types of furnace are used according to the element under test, a vertical panel furnace, and a horizontal furnace for floors and beams which heat on one side only, and a cylindrically designed furnace for columns which heats the element from all directions. All loadbearing elements are loaded and restrained to reproduce the stresses they are designed to carry
No records Found