THE EFFECT OF THERMAL CYCLES ON FLEXURAL STRENGTH OF HIGH STRENGTH CONCRETE (M90) COMPARED TO STANDARD CONCRETE (M25)

Concrete is one in all the foremost well-liked construction materials used since hundred years past. thanks to its flexibility and its North American nation age several structures around us build by concrete. This paper presents associate experimental investigation on flexural strength of concrete subjected to thermal cycles the tests were applied on traditional weight concrete specimens of size 100mm X 100mm X 500mm. The concrete was subjected to constant temperatures of 100ºC, 200ºC and 300º C for thermal cycles zero, 1, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50. every heating cycle corresponds to eight hrs. heating and later cooling for sixteen hrs. once the specified range of thermal cycles, the specimens were tested for flexural strength of concrete. check results were critically examined and also the effects of varied parameters within the gift work are mentioned. combine style of high strength concrete is influenced by properties of cement, sand, coarse combination and water-cement magnitude relation. to realize high strength, it’s necessary to use lowest doable water-cement magnitude relation.