Comparative Study of Compressibility and Deformation Properties of Silt Stabilized with Lime, Lime, and Cement, and SEU-2 Binder

Pu, Shaoyun; Zhu, Zhiduo; Song, Wei; Wan, Yu; Wang, Hairong; Xu, Xiaoyu

doi:10.1007/s13369-020-04406-9

Cited by 11 publications

(2 citation statements)

References 45 publications

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“…Lime treated soil can improve the mechanical properties of soil to a certain extent, but its brittle failure mode will affect the strength and durability of road base. Therefore, further study of the mechanical properties of LS modified by adding polypropylene fiber and nano clay is required [5,6]. Jiang et al [7] studied the interfacial action and energy dissipation of polypropylene fiber and glass fiber modified iron tailings through single fiber drawing test, and established a quantitative relationship model between dissipated energy, effective fiber length, and freeze-thaw cycle.…”

Section: Introductionmentioning

confidence: 99%

The Elastic Modulus and Damage Stress–Strain Model of Polypropylene Fiber and Nano Clay Modified Lime Treated Soil under Axial Load

et al. 2022

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Using polypropylene fiber (PPF) and nano clay modified lime treated soil (LS), the static and dynamic properties of fiber modified lime treated soil (FLS), nano clay modified lime treated soil (NLS), and fiber nano clay composite modified lime treated soil (NFLS) were studied. Through the unconfined compressive strength (UCS) test and dynamic triaxial test of FLS, NLS, and NFLS, the static and dynamic elastic modulus characteristics at 7 day curing age were explored, and the damage stress–strain model was established. The results show that: (1) Polypropylene fiber and nano clay can significantly enhance the mechanical properties of NFLS. Nano clay can promote the reaction between lime and soil to produce calcium silicate hydrate (C-S-H) and calcium aluminate hydrate (C-A-H), thus improving the strength of NFLS, and UCS can be increased by up to 103%. Polypropylene fiber can enhance the ductility of NFLS and increase the residual ductility strength, and the residual strength can be increased by 827%. (2) Nano clay can enhance the static and dynamic elastic modulus of modified lime treated soil. The static and dynamic elastic modulus of NLS, FLS, and NFLS are linear with the change of polypropylene fiber and nano clay content. The static and dynamic elastic modulus of NLS, FLS, and NFLS are linear, exponential, and logarithmic, respectively. (3) The mesoscopic random damage model can characterize the stress–strain relationship of NFLS. Polypropylene fiber and nano clay can improve the ductility and strength of modified LS, and the composite addition of polypropylene fiber and nano clay can improve the ability of modified LS to resist damage.

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Section: Introductionmentioning

confidence: 99%

The Elastic Modulus and Damage Stress–Strain Model of Polypropylene Fiber and Nano Clay Modified Lime Treated Soil under Axial Load

et al. 2022

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“…Trough cation exchange, focculation, agglomeration, and pozzolanic reactions, those procedures are utilized to stabilize soils and change their characteristics. Commercial soil improvement agents, such as cement [8], lime [9,10], and bitumen [9], are used. Although they are popular additives, the fact that they are produced industrially keeps the cost high.…”

Section: Introductionmentioning

confidence: 99%

Effects of Corn Cob Ash as Partial Replacement of Cement for Stabilization of an Expansive Clay

Yifru

Getu

Kifile

et al. 2022

Advances in Civil Engineering

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Expansive soil is a serious problem because it damages civil engineering projects and has an impact on Ethiopia’s road development expansion. In this study, an attempt has been made to assess the effects of corn cob ash (CCA) as a partial replacement of cement for the stabilization of an expansive clay to be used as road subgrade material. Corn cob is a waste agricultural product obtained during the production of corn. After it has been converted to ash, tests are carried out on the pozzolanic property and elemental composition of corn cob ash (CCA). Preliminary tests were performed on the natural soil sample for purposes of classification and identification of some required properties of the sample. Following the required preliminary laboratory analysis, the clay was stabilized with cement and CCA in varying proportions of 2, 4, 6, and 8%, separately. The maximum stabilization effect occurs at 8 and 4% of cement and CCA, respectively. With this percentage, the CBR of the sample increased from 2.62% at 0% to 10.47% and 3.31% at 8 and 4% of cement and CCA, respectively. As a result, 8% of cement was taken as the total amount for different cement and corn cob ash (C: CCA) ratios of 1 : 1, 1 : 2, 1 : 3, and 1 : 4 in the blending stabilization. The optimum blending effect on the strength of stabilized subgrade occurs at a 1 : 2 ratio, containing 2.7% cement and 5.3% CCA. With this ratio, the CBR of the sample increased from 2.62% at 0% to 6.72%. As a result, 5.3% of the cement was substituted with CCA, which had a comparable effect on subgrade strength due to the ideal percentage of cement stabilized. Hence, it can be concluded that CCA can serve as a good complement for the partial replacement of cement in subgrade stabilization.

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Microstructural properties and compressive strength of lime or/and cement solidified silt: a multi-scale study

Zhu

Zhao³

et al. 2020

Bull Eng Geol Environ

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Comparative Study of Compressibility and Deformation Properties of Silt Stabilized with Lime, Lime, and Cement, and SEU-2 Binder

Cited by 11 publications

References 45 publications

The Elastic Modulus and Damage Stress–Strain Model of Polypropylene Fiber and Nano Clay Modified Lime Treated Soil under Axial Load

The Elastic Modulus and Damage Stress–Strain Model of Polypropylene Fiber and Nano Clay Modified Lime Treated Soil under Axial Load

Effects of Corn Cob Ash as Partial Replacement of Cement for Stabilization of an Expansive Clay

Microstructural properties and compressive strength of lime or/and cement solidified silt: a multi-scale study

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