2021 年 27 巻 67 号 p. 1140-1145
In this study, an experimental study is carried out to confirm time dependent change of fresh concrete, setting time and compressive strength of ultra-high strength concrete exceeding 35℃. As the result, it is confirmed that the fresh properties of concrete using chemical admixture properly was stability. And, it is confirmed that concrete could secure the prescribed compressive strength. Additionally, it is suggested that the time to reach the respective penetration resistance value could be estimated from concrete temperature and chemical admixture usage.