Shear strength performance of marine sediments stabilized using cement, lime and fly ash

Furlan, Ana Paula; Razakamanantsoa, Andry; Ranaivomanana, Harifidy; Levacher, Daniel; Tanaka, Katsumi

doi:10.1016/j.conbuildmat.2018.06.231

Cited by 47 publications

(10 citation statements)

References 28 publications

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“…In general, the increase of UCS by adding different compounds can be attributed to short-and long-term reactions. Pozzolanic reactions lead to the formation of calcium silicate hydrate (CSH) and calcium aluminate hydrate (CAH) gels that fill the voids and thus increase the UCS of the samples [51,52]. Based on the Figures 6 and 7, the optimum value of nano-ZnO and nano-SiO 2 in combination with 6% lime was reported at 1.5 and 2%, respectively.…”

Section: Effect Of Nanospheres On Unconfined Compressivementioning

confidence: 98%

Effect of Selected Nanospheres on the Mechanical Strength of Lime-Stabilized High-Plasticity Clay Soils

Ghorbani

Hasanzadehshooiili

Mohammadi

et al. 2019

Advances in Civil Engineering

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The proper design of protective structures may start from improving the characteristics of soils. In order to obtain reasonable safety criteria, several research studies have recently been dedicated to enhancing complex civil engineering structural systems with the use of nanotechnology. Thus, the following paper investigates the effect of nanospheres, including nanosilica (nano-SiO2) and nano zinc oxide (nano-ZnO), on lime-stabilized high-plasticity clay soil. For this purpose, unconfined compressive strength (UCS) and California bearing ratio (CBR) tests were performed on samples. The results showed that the use of the selected nanospheres greatly increased the UCS of the samples compared to untreated soil. The UCS value of samples containing 6% lime and 1.5% nano-ZnO after 28 days of treatment increased by 5-fold compared to the UCS of untreated samples. In addition, the samples containing 6% lime and 2% nano-SiO2, with similar curing conditions, experienced a 5.3-fold increase in their UCS value compared to the untreated samples. These compounds were considered as the optimal amounts and showed the highest mechanical strength in both UCS and CBR tests. The same trend was achieved in the CBR test, in which the CBR value for the optimal mixtures containing nano-ZnO and nano-SiO2 was 14.8 and 16.6 times higher than that of high-plasticity clay soil, respectively. Finally, the results obtained from scanning electron microscopy (SEM) analysis revealed that the nanospheres caused a dense and compact matrix to form in the soil, which led to the enhancement of the mechanical strength of the treated samples.

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Section: Effect Of Nanospheres On Unconfined Compressivementioning

confidence: 98%

Effect of Selected Nanospheres on the Mechanical Strength of Lime-Stabilized High-Plasticity Clay Soils

Ghorbani

Hasanzadehshooiili

Mohammadi

et al. 2019

Advances in Civil Engineering

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“…The above studies show that Portland cement can play a better role in cementing calcareous sand and can effectively enhance the mechanical properties of calcareous sand. Industrial waste fly ash has been widely used as an admixture in cement-based materials such as concrete and cement-soil [17][18][19][20][21]. In addition to acting as a filler in cement-soil, it also participates in chemical reactions to generate products like that of cement hydration [22], which can effectively improve the strength of cement-soil.…”

Section: Introductionmentioning

confidence: 99%

Study on Triaxial Mechanical Properties and Micro Mechanism of Fly Ash Reinforced Cement Calcareous Sand

Li¹,

Li²,

Fang³

et al. 2022

Journal of Renewable Materials

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In order to study the mechanical properties and micro-mechanism of industrial waste fly ash-reinforced cement calcareous sand (FCS), the triaxial unconsolidated undrained (UU) test and scanning electron microscope tests (SEM) were carried out on it. The results of UU test show that the peak stress and energy dissipation of the FCS sample first increase and then decrease with the increase in fly ash content. Fly ash enhances the cement calcareous sand by increasing both the cohesion and internal friction angle, and adding 10% content of fly ash gives the largest values. The SEM test results shows that the hydration products of cement and fly ash filled the pores and cracks on the surface of the calcareous sand, which increased the compactness and structure of the FCS samples. The porosity of cement calcareous sand can be reduced from 27.6% to 12.8% by adding 10% fly ash. A brittleness evaluation index based on energy dissipation is proposed to quantitatively characterize the brittleness of FCS samples. The results show that when the content of fly ash is 5%, the brittleness of FCS samples is the lowest. This study shows that the mechanical properties of cement calcareous sand can be effectively enhanced by adding the appropriate amount of fly ash.

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“…But the excessive addition of sulphate content may increase the swelling in soil, reduce plasticity with brittle failure feature of soils. In this paper, the soil stabilization has been performed with the lime and plastic fiber that is obtained from the waste material [5].…”

Section: Introductionmentioning

confidence: 99%

Stablization of Clayey Soil Via Lime and Plastic Fibre for Advanced Foundation Proposition.

Singh¹

2021

IJRASET

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Soil is the most widely used and basic material for civil engineering. The soil is used for houses, walls, bridges and roads. The Earth provides various types of soil and varies in its properties, scale, composition and textures. The earth's soil is a natural fine grain rock that contains one or more minerals from Earth, which have metal oxides and traces of organic matter. Based on the structure, the clay has quite a range of characteristics. It's slow, and difficult to accelerate, and used for something small. This study is aimed at achieving soil engineering properties for subgrade. In the subgrade construction, waste plastic bottles are used from waste disposal and the application of raw waste soil reinforcement materials and tried to stabilize the clay soil in different strong lime percentages (2 percent, 4 percent, 6 percent, 8 percent, 10 percent, and 12 percent). Testing of the strength of the clay earth, like Maximum Dry Density (MDD) and California Bearing (CBR) was done at different plastic strip percentages. In order to measure improvements in technologies, the clay floor swelling index and the microscopic examination also are performed. Keywords: Clay soil, Lime, Plastic, fiber material.

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Shear strength performance of marine sediments stabilized using cement, lime and fly ash

Cited by 47 publications

References 28 publications

Effect of Selected Nanospheres on the Mechanical Strength of Lime-Stabilized High-Plasticity Clay Soils

Effect of Selected Nanospheres on the Mechanical Strength of Lime-Stabilized High-Plasticity Clay Soils

Study on Triaxial Mechanical Properties and Micro Mechanism of Fly Ash Reinforced Cement Calcareous Sand

Stablization of Clayey Soil Via Lime and Plastic Fibre for Advanced Foundation Proposition.

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