EN页岩陶粒混凝土导热系数计算模型研究
页岩陶粒混凝土导热系数计算模型研究
- 三峡大学学报（自然科学版） 2025年47卷第2期 页码：76-83
- 作者机构：
1. 防灾减灾湖北省重点实验室(三峡大学)
2. 三峡大学土木与建筑学院
3. 宜昌市建筑节能推广中心
- 作者简介：
- 基金信息：湖北省自然科学基金青年项目(2020CFB272);国家级地方高校能源和环境材料化学学科创新引智基地项目(D20015);土木工程防灾减灾湖北省引智创新示范基地项目(2021EJD026)
DOI：10.13393/j.cnki.issn.1672-948X.2025.02.011
中图分类号： TU528.2-
纸质出版：2025
- 稿件说明：
移动端阅览
高德军, 张贺鹏, 李露, 等. 页岩陶粒混凝土导热系数计算模型研究[J]. 三峡大学学报（自然科学版）, 2025,47(2):76-83.
高德军, 张贺鹏, 李露, et al. 页岩陶粒混凝土导热系数计算模型研究[J]. 2025, 47(2): 76-83.
高德军, 张贺鹏, 李露, 等. 页岩陶粒混凝土导热系数计算模型研究[J]. 三峡大学学报（自然科学版）, 2025,47(2):76-83. DOI： 10.13393/j.cnki.issn.1672-948X.2025.02.011.
高德军, 张贺鹏, 李露, et al. 页岩陶粒混凝土导热系数计算模型研究[J]. 2025, 47(2): 76-83. DOI： 10.13393/j.cnki.issn.1672-948X.2025.02.011.
摘要
采用平板热流计法测定了页岩陶粒混凝土(lightweight shale ceramsite concrete
LSCC)及其砂浆基体的导热系数，试验研究了水灰比、体积砂率、水泥用量和陶粒等级对导热系数的影响，探讨了LSCC抗压强度和孔隙水饱和度与导热系数的关系；按照陶粒和砂浆基体并联传热的方式，建立了考虑孔隙水饱和度影响的LSCC导热系数预测模型.结果表明：LSCC的导热系数随着水灰比的增大而减小，随着体积砂率、水泥用量和陶粒等级的提高而增大，与其抗压强度和孔隙水饱和度均存在正相关性，且与孔隙水饱和度符合线性关系；模型可以较为准确地预测干燥状态下LSCC的导热系数；孔隙水饱和度对LSCC导热系数的影响较大；由模型的计算结果可知，在LC25～LC35范围内，混凝土中孔隙水饱和度每增加0.1
导热系数平均增大约0.171 W/(m·K).
Abstract
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