Unconfined compression behavior of modified lime stabilized soil under dry wet and freeze⁃thaw cycles

被引：0

作者：

Jiang P. ^{[1
,2
]}

Chen Y.-W. ^{[2
]}

Chen X.-H. ^{[1
]}

Zhang W.-Q. ^{[2
,3
]}

Li N. ^{[2
]}

Wang W. ^{[2
]}

机构：

[1] School of Transportation, Southeast University, Nanjing

[2] School of Civil Engineering, Shaoxing University, Shaoxing

[3] Guangdong Architectural Design and Research Institute Co.，Ltd., Guangzhou

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2023年 / 53卷 / 06期

关键词：

dry wet cycle; freeze thaw cycle; modified lime stabilized soil; road engineering; unconfined compression behavior;

D O I：

10.13229/j.cnki.jdxbgxb.20221376

中图分类号：

学科分类号：

摘要：

In order to further improve the applicability and safety of lime stabilized soil in complex environmental engineering，the mechanical properties of lime stabilized soil modified by nano clay and fiber were studied. By analyzing the unconfined compression behavior of modified lime stabilized soil under the action of dry wet cycle and freeze-thaw cycle，the modified effect of nano clay and fiber on lime stabilized soil can be judged. The test results show that fiber and nano clay can improve the compressive strength and residual strength of lime stabilized soil，increase the failure strain and change the failure mode. Especially，under the combined action of fiber and nano clay，nano clay/fiber modified lime soil（NFLS）presents the best unconfined compression behavior，and can delay the internal damage of NFLS caused by dry wet cycle and freeze-thaw cycle. © 2023 Editorial Board of Jilin University. All rights reserved.

引用

页码：1809 / 1818

页数：9

共 32 条

[1] Jiang P, Chen Y, Li N, Et al., Strength properties and microscopic mechanism of lime and fly ash modified expandable poly styrene lightweight soil reinforced by polypropylene fiber, Case Studies in Construction Materials, 17, (2022)
[2] Jiang X, Huang Z, Ma F, Et al., Analysis of strength development and soil-water characteristics of rice husk ash-lime stabilized soft soil, Materials, 12, 23, (2019)
[3] Zhou Yu, Li Guo-yu, Wu Hong-juan, Et al., Experimental study on the unconfined compressive strength of lime stabilized red-mudstone, Journal of Glaciology and Geocryology, 43, 2, pp. 535-543, (2021)
[4] Yu Fan, Huang Yu-bin, Sun Da-quan, Modification effect of lime soil and cement soil by water-reducing agent, Journal of Building Materials, 20, 2, pp. 283-287, (2017)
[5] Jahandari S, Li J, Saberian M, Et al., Experimental study of the effects of geogrids on elasticity modulus, brittleness, strength, and stress-strain behavior of lime stabilized kaolinitic clay, GeoResJ, 13, pp. 49-58, (2017)
[6] Wang Fang-ting, Cheng Kai, Wang Qi-Ye, Et al., Study on mechanical properties of modified soil by lime soaked fiber, Industrial Construction, 52, 1, pp. 343-347, (2022)
[7] Bian Jia-min, Water stability of lime-treated expansive soil, Journal of Yangtze River Scientific Research Institute, 33, 1, pp. 77-82, (2016)
[8] Nabil M, Mustapha A, Rios S., Impact of wetting—drying cycles on the mechanical properties of lime-stabilized soils, International Journal of Pavement Research and Technology, 13, 1, pp. 83-92, (2020)
[9] Khoury N., Moisture hysteretic behavior of fine-grained soils stabilized with lime and class C fly ash [J], International Journal of Geomechanics, 19, 9, pp. 1-11, (2019)
[10] Ying Z, Cui Y J, Benahmed N, Et al., Changes of small strain shear modulus and microstructure for a lime-treated silt subjected to wetting-drying cycles, Engineering Geology, 293, (2021)

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