Open AccessOptimization of Ionic Soil Stabilizer Dilution and Understanding the Mechanism in Red Clay Treatment
Author(s) -
Xuesong Lu,
Jun Luo,
Meinan Wan
Publication year - 2021
Publication title -
advances in civil engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 25
eISSN - 1687-8094
pISSN - 1687-8086
DOI - 10.1155/2021/5749863
Subject(s) - stabilizer (aeronautics) , dilution , clay soil , atterberg limits , geotechnical engineering , materials science , plasticity , expansive clay , clay minerals , red soil , soil water , soil science , geology , composite material , mineralogy , structural engineering , physics , thermodynamics , engineering
Due to the insufficient understanding of the mechanism for soil strengthening by using Ionic Soil Stabilizer (ISS), the application of ISS in soil treatment is limited. In this paper, red clay samples were treated by using ISS and the effects were examined by the Atterberg test and uniaxial pressure test. In order to understand the mechanism, ISS dilution-based seepage test and ξ-potential test have been carried out. The results show that the ISS-Water mixture of 1 : 200 was the most effective ratio to reduce the plasticity index. The measurements indicate the thickness of the pair-electricity layer of adjacent clay layers and the repulsion force among soil particles is reduced, which in turn enhances the attraction force of the clay layers. This process strengthens the connection among the soil particles and thus increases the strength of the soil as detected by the experimental tests.