Characteristics of resistivity-temperature for carbon fiber reinforced concrete

Abstract

The resistance response to temperature change of carbon fiber reinforced cementbased composites (CFRC) is reported, which shows some outstanding phenomena of positive temperature coefficient (PTC) of resistance and negative temperature coefficient (NTC) of resistance during the temperature rising. The influences of carbon fiber, cementbased matrix and thermal cycles on the characteristics of temperatureresistivity for the system were also discussed. Because of the special characteristics for temperatureresistivity, carbon fiber cement based composites can be useful in structure with the function of alarm for fire.