Dynamic properties of loess improved by nano-MgO and hydrated lime under humidification conditions
Year: 2025
Type: article
Abstract: This study investigates how nano-MgO enhances the dynamic properties of lime-stabilized loess, a soil prone to weakening when moistened. Under simulated humidification, the addition of nano-MgO significantly improved the soil's performance: cumulative strain decreased by up to 30.7%, dynamic elastic modulus increased by up to 32.9%, and damping ratio was reduced by up to 19.4%. The high surface activity of nano-MgO accelerates lime-soil reactions, forming a more robust matrix that binds soil particles and fills pores, thereby improving moisture resistance. These findings demonstrate a filler-based strategy for ground improvement, offering a promising approach to mitigate rainfall-induced subsidence and enhance infrastructure stability in loess regions.
Source: iScience
Authors: Jin Chen, Chengyue Wu, Zhigang Zhang, Shiyu Gong, Bo Fu, Huaiping Feng
Institutions: Chang'an University, Shijiazhuang Tiedao University
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,240
Funders: Center for Health Design, National Natural Science Foundation of China, Chang'an University, Hebei Provincial Department of Bureau of Science and Technology, Shaanxi Science and Technology Association, Hebei Province Science and Technology Support Program, Fundamental Research Funds for the Central Universities
Awards: G4108136418, G6068774099, G7672777425
OpenAlex ID: W4416713302