TY -的A2 - Mo,金正日挂AU -杨,In-Hwan盟——公园、Jihun AU -金,Kyoung-Chul盟,Yoo Sung-Won PY - 2021 DA - 2021/12/02 TI -比较研究混凝土的导热系数与煤在不同干燥条件下底灰SP - 7449298六世- 2021 AB -底灰煤的利用率(CBA)和粉煤灰在混凝土已成为越来越普遍。CBA混凝土养护条件会影响混凝土的热性能由于高CBA骨料的吸水能力。此外,CBA和粉煤灰含量具体影响混凝土的热性能。因此,干燥条件的影响和CBA和粉煤灰内容CBA混凝土的导热系数进行了研究。混凝土的导热系数是两个不同的养护和干燥条件下测量:烘干的条件和饱和面干(SSD)条件下,与养护28和91天。混凝土混合物还包含不同层次的CBA和粉煤灰。碎砂混凝土混合物中取代了CBA替代率为25%,50%,75%,100%。此外,水泥的混凝土混合物代替了粉煤灰置换率的20 - 40%。混凝土的导热系数在烘干的条件下比在固态条件下要低得多。此外,混凝土的导热系数降低作为CBA内容增加烘干的和SSD的条件下。 The material properties of the concrete, including unit weight, compressive strength, and ultrasonic velocity, were also measured in the study. Compared with the SSD conditions, the compressive strength, unit weight, and ultrasonic velocity of CBA concrete were considerably lower under the oven-dried conditions. Moreover, the relationships between the thermal conductivity and unit weight, compressive strength, and ultrasonic velocity were suggested. SN - 1687-8086 UR - https://doi.org/10.1155/2021/7449298 DO - 10.1155/2021/7449298 JF - Advances in Civil Engineering PB - Hindawi KW - ER -