Thermal Conductivity of Fractal-Textured Foamed Concrete

被引：2

作者：

Xiang, Guosheng ^{[1
]}

Li, Huajian ^{[1
]}

Zhou, Yinkang ^{[1
]}

Huang, Zhe ^{[1
]}

机构：

[1] Anhui Univ Technol, Dept Civil Engn, Maanshan 243002, Peoples R China

来源：

FRACTAL AND FRACTIONAL | 2023年 / 7卷 / 06期

基金：

中国国家自然科学基金;

关键词：

foamed concrete; thermal conductivity; porosity; fractal dimension;

D O I：

10.3390/fractalfract7060475

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

To provide scientific guidance for the use of foamed concrete (FC) in construction engineering, a thermal conductivity calculation method, based on the fractal model of FC, has been developed. The thermal conductivity (TC) of FC has been tested by the transient planar heat source method in order to verify the reliability of the proposed calculation model. The FC was made of cement, fly ash, and ore powder, and cured under natural conditions for 7 d, 14 d, 28 d, and 42 d, respectively. The TC of FC gradually decreases with the increase in age. The fractal dimension of FC can be determined by both the box-counting method and compressive strength test, and the dimensions determined by both methods are similar. The TC of FC at different porosities and curing ages can be calculated by the fractal dimension, and the estimated values are basically consistent with the test data.

引用

页数：13

共 50 条

[1] COMPRESSIVE STRENGTH OF FRACTAL-TEXTURED FOAMED CONCRETE
Chen, Y.
Xu, Y. F.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY, 2019, 27 (01)
[2] UNSATURATED MECHANICS OF FRACTAL-TEXTURED SOILS
Xu, Y-F.
Cao, L.
RECENT DEVELOPMENTS OF GEOTECHNICAL ENGINEERING, 2010, : 62 - 69
[3] Fractal-textured soils and their unsaturated mechanical properties
School of Naval, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, China
不详
Yantu Gongcheng Xuebao, 2006, 5 (635-638):
[4] Swelling characteristics of fractal-textured bentonite and its mixtures
Xu, YF
Matsuoka, H
Sun, DA
APPLIED CLAY SCIENCE, 2003, 22 (04) : 197 - 209
[5] Swelling Characteristics of Fractal-Textured Bentonite Eroded by Alkaline Solution
Xiang, Guosheng
Ye, Weimin
Hu, Zhijie
Ge, Lei
Zhou, Yinkang
ADVANCES IN CIVIL ENGINEERING, 2022, 2022
[6] Novel fractal-textured solar absorber surfaces for concentrated solar power
Kant, K.
Sibin, K. P.
Pitchumani, R.
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2022, 248
[7] Investigations on Thermal Conductivity Models of Low Density Foamed Concrete
Yang Z.
Li T.
Yu L.
Jianzhu Cailiao Xuebao/Journal of Building Materials, 2020, 23 (02): : 322 - 327
[8] Effect of foaming gas and cement type on the thermal conductivity of foamed concrete
Li, Tian
Huang, Fangmei
Zhu, Jiang
Tang, Jinhui
Liu, Jiaping
CONSTRUCTION AND BUILDING MATERIALS, 2020, 231
[9] Prediction for swelling deformation of fractal-textured bentonite and its sand mixtures in salt solution
Xiang, Guo-sheng
Yu, Feng
Xu, Yong-fu
Fang, Yuan
Xie, Sheng-hua
CLAY MINERALS, 2019, 54 (02) : 161 - 167
[10] Performance Evaluation of Foamed Concrete with Lightweight Aggregate: Strength, Shrinkage, and Thermal Conductivity
Wei, Jiaying
Wang, Tianyu
Zhong, Ying
Zhang, Yi
Leung, Christopher K. Y.
MATERIALS, 2024, 17 (15)

← 1 2 3 4 5 →