Influence of graphene oxide on the heat resistance of high strength concrete
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The effect of Graphene Oxide (GO) on the thermal properties of high-strength concrete has been less studied. The mechanicalproperties, compactness, mineral composition and microstructure of the high-strength concrete with GO addition wereexamined by heat treatments at different temperatures. The results showed that the enhancement of the residual flexuralstrength with GO addition was greater than that of the residual compressive strength; GO addition had a significant effecton the mechanical properties of concrete treated at less than 500 ℃; Differential Scanning Calorimeter (DSC) test showed thatthe high-strength concrete with GO addition required more heats for its decomposition after 500 ℃; The internal pores/cracksof the high strength concrete with GO addition were reduced after the heat treatment at a high-temperature because theproducing of new crystals can improve the residual properties of the high-strength concrete.
Abstract
The effect of Graphene Oxide (GO) on the thermal properties of high-strength concrete has been less studied. The mechanicalproperties, compactness, mineral composition and microstructure of the high-strength concrete with GO addition wereexamined by heat treatments at different temperatures. The results showed that the enhancement of the residual flexuralstrength with GO addition was greater than that of the residual compressive strength; GO addition had a significant effecton the mechanical properties of concrete treated at less than 500 ℃; Differential Scanning Calorimeter (DSC) test showed thatthe high-strength concrete with GO addition required more heats for its decomposition after 500 ℃; The internal pores/cracksof the high strength concrete with GO addition were reduced after the heat treatment at a high-temperature because theproducing of new crystals can improve the residual properties of the high-strength concrete.
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