共 50 条
Freeze-thaw performance of phase change material (PCM) incorporated pavement subgrade soil
被引:84
|作者:
Mahedi, Masrur
[1
]
Cetin, Bora
[2
]
Cetin, Kristen S.
[3
]
机构:
[1] Iowa State Univ, Dept Civil Construct & Environm Engn, 136 Town Engn Bldg, Ames, IA 50011 USA
[2] Iowa State Univ, Dept Civil Construct & Environm Engn, 494 Town Engn Bldg, Ames, IA 50011 USA
[3] Iowa State Univ, Dept Civil Construct & Environm Engn, 428 Town Engn Bldg, Ames, IA 50011 USA
关键词:
Freeze-thaw;
Frost susceptibility;
Heaving;
Thaw weakening;
Frozen soil;
Pavement subgrade;
THERMAL-ENERGY STORAGE;
TEMPERATURE;
FEASIBILITY;
CONCRETE;
STRENGTH;
CEMENT;
D O I:
10.1016/j.conbuildmat.2018.12.210
中图分类号:
TU [建筑科学];
学科分类号:
0813 ;
摘要:
Phase Change Materials (PCMs) can store and release large amounts of energy in the form of latent heat during their phase changes, which could be utilized in controlling the freeze-thaw impact on pavement foundation systems. Untreated, and Class C fly ash-treated loess soil amended with three different dosages of paraffin-based liquid, and microencapsulated PCMs were evaluated using unconfined compression, volume change, and frost heave tests. The results of this research support the use of PCMs in controlling the freeze-thaw effect on subgrade soil. Further recommendations are provided on PCMs selection, composite type PCMs, incorporation method, and chemical stability. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码:449 / 464
页数:16
相关论文