%0 Journal Article
%A CHEN Ke-zheng
%A HUANG Shuai
%A HU Zheng
%A DING Qian
%A LIU Yan-jie
%A DING Lin
%T Solidification and Evaluation of Saline-carbonated Soil Treated with Inorganic Materials in Seasonally Frozen Ground Regions
%D 2024
%R 10.11988/ckyyb.20221535
%J Journal of Yangtze River Scientific Research Institute
%P 124-132
%V 41
%N 5
%X The aim of this study is to mitigate the adverse impacts of saline-carbonated soils in the Songhua River and Nenjiang River Plain on engineering and to weaken the damage caused by freeze-thaw cycles on saline-alkali soils in regions of seasonally frozen ground by using lime and fly ash to solidify saline-carbonated soils.The study investigates the effect of different improvement schemes on the shear strength of saline-carbonated soils and their ability to withstand freeze-thaw cycles.The solidification schemes are evaluated using the entropy-weighted TOPSIS model.Results indicate that both lime and fly ash have enhanced the shear strength of saline-carbonated soils.However, the solidification effect of lime is significantly superior to that of fly ash and has transformed the stress-strain curve of saline-carbonated soils into one with strain-softening behavior.Fly ash has distinguished performance in enhancing the resistance of saline-carbonated soils to freeze-thaw damage.The admixture of both lime and fly ash comprehensively accounts for shear strength and resistance to freeze-thaw damage.From the perspective of mechanical properties, freeze-thaw resistance, and economic factors, the optimal solution is the use of 12% lime and 12% fly ash.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20221535