Study on Performance of Negative-Temperature-Concrete(NTC) in Runyang Yangtse River Bridge

Performance of Negative-Temperature-Concrete(NTC), including strength and stress-strain, were studied in accordance with the characteristics of freezing method in the south anchor of Runyang Yangtse River Bridge. The results show that, by selecting the appropriate antifreezing agent and optimizing the mix proportion, NTC is capable of frost-resistance, and the strength of NTC can increase continually under negative temperature and the mechanical properties of NTC will not decrease after the temperature rises above zero.