摘要
为了研究引气混凝土材料的导热系数,利用基于护热板法的导热仪(DRH)测试了各种试件的导热系数,探讨了骨料含量、砂率、水灰比、粉煤灰掺量、含气量等影响混凝土导热系数的因素。根据试验结果可知,水灰比、含气量是影响混凝土导热系数的主要因素,骨料、砂率、粉煤灰掺量对导热系数也有一定的影响。
In order to research the thermal conductivity of the air-entraining concrete,influencing factors such as aggregate content,sand ratio,fly ash content and air content on thermal conductivity of air-entraining concrete are quantitatively investigated by DRH-that is,a conductivity Apparatus of Guarded-Hot-Plate.The experimental results show that water-cement ratio and air content are the main factors of thermal conductivity of the air-entraining concrete.In addition,aggregate content,sand ratio,and fly ash content also does have an effect on the thermal conductivity to an extent.
出处
《河北工程大学学报（自然科学版）》
CAS
2011年第3期17-20,共4页
Journal of Hebei University of Engineering:Natural Science Edition
关键词
引气混凝土
导热系数
稳态法
骨料含量
air-entraining concrete
thermal conductivity
steady-state method
aggregate content
