Effect of freeze-thaw cycles on mechanical performance of loess soil stabilized with nano magnesium oxide.

ABSTRACT: Construction in northwest China is generally packed with issues linked to loess soil with poor engineering properties and day-night and seasonal freeze-thaw (FT) actions. This study explored the potential benefits of nano-MgO (NM) as an innovative solution for improving mechanical properties of loess. To this end, a series of unconfined compression test (UCT) and nuclear magnetic resonance tests (NMRT) were conducted. Results showed that the unconfined compressive strength (UCS) exhibited an a "rise-fall" trend with the addition of NM. An optimum dosage of 2% NM is expected to bring about 71.9% and 143.5% strength gain for non-FT and FT samples, respectively. Meanwhile, the FT-induced strength reduction ratio decreased from 56.3% to 38.1% with NM content from 0 to 2%. These illustrated tha

SUBMITTER: Hu P 

PROVIDER: S-EPMC12040123 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature