Early-Age Fatigue Damage Assessment of Cement-Treated Bases under Repetitive Heavy Traffic Loading

Sounthararajah, Arooran; Bui, Ha H.; Nguyen, Nhu H.T.; Jitsangiam, Peerapong; Kodikara, Jayantha

doi:10.1061/(asce)mt.1943-5533.0002250

Cited by 34 publications

(6 citation statements)

References 22 publications

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“…The most popular technique is the use of ordinary Portland cement (OPC) as a stabilizing agent, leading to the technique of “soil–cement stabilization” [ 21 ], the goal of which is to increase soil strength. Some previous research [ 22 , 23 , 24 , 25 , 26 , 27 , 28 ] confirmed that using OPC to stabilize different soil types, including soft clay and lateritic soil, can improve their unconfined compressive strength (UCS). Furthermore, those UCS values increase as cement content and curing time increase.…”

Section: Introductionmentioning

confidence: 95%

Stabilized High Clay Content Lateritic Soil Using Cement-FGD Gypsum Mixtures for Road Subbase Applications

et al. 2021

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With a lack of standard lateritic soil for use in road construction, suitable economical and sustainable soil-stabilization techniques are in demand. This study aimed to examine flue gas desulfurization (FGD) gypsum, a by-product of coal power plants, for use in soil–cement stabilization, specifically for ability to strengthen poor high-clay, lateritic soil but with a lower cement content. A series of compaction tests and unconfined compressive strength (UCS) tests were performed in conjunction with scanning electron microscope (SEM) analyses. Therefore, the strength development and the role of FGD gypsum in the soil–cement–FGD gypsum mixtures with varying cement and FGD gypsum contents were characterized in this study. The study results showed that adding FGD gypsum can enhance the strength of the stabilized substandard lateritic soil. Extra FGD gypsum added to the cement hydration system provided more sulfate ions, leading to the formation of ettringite and monosulfate, which are the hardening cementitious products from the cement hydration reaction. Both products contributed to the strength gain of the soil–cement–FGD gypsum material. However, the strength can be reduced when too much FGD gypsum is added because the undissolved gypsum has a weak structure. Examinations of FGD gypsum in the soil–cement–FGD gypsum mixtures by SEM confirmed that adding FGD gypsum can reduce the cement content in a soil–cement mix to achieve a given UCS value.

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Section: Introductionmentioning

confidence: 95%

Stabilized High Clay Content Lateritic Soil Using Cement-FGD Gypsum Mixtures for Road Subbase Applications

et al. 2021

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“…Arooran S. et al (2018) [11] developed measures to minimiza the early-age fatigue damage of prematurely-opened cement-treated due to repective heavy traffic loading. Jianming [12] accelerated pavement testing and a finite element method were employed to investigate the effects of three influential factors: temperature, interface bonding, and load level.…”

Section: Figure 1 Flowchart Of Research Methodologymentioning

confidence: 99%

Fatigue Analysis for Void Repair of Cement Concrete Pavement with Under Slab by Polymer Grouting

2019

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After the appearing of voids beneath cement concrete slabs, the pavement loses a continuous and uniform lower support structure, and the stress state of the road panel is extremely unfavorable. The polymer grouting repair is timesaving, efficient and pollution-free. In order to verify the performance improvement and fatigue damage evolution of cement concrete pavement before and after grouting repair, a material damage constitutive model was established. The UMAT subprogram was introduced into the finite element software ABAQUS to analyze the structure under the action of moving cyclic loading, stress response and fatigue damage evolution process before and after regional grouting repair. The results show that the Mises stress and vertical displacement of the grouting repairing slab are very close to the normal state, which indicates that the grouting repair has a prominent influence on the bottom void of the slab. With the rise of loading time, the fatigue damage of the pavement structure is increasing, but the trend is gradually reduced, and the number of load times and the degree of fatigue damage are nonlinear. From the long-term cyclic loading and comprehensive analysis of the construction period, the polymer grouting repair is better than cementitious grout.

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“…Embora o ensaio tenha sido realizado à tensão controlada, a Figura 5 mostra a curva de fadiga obtida em termos de deformação específica de tração inicial medida após 100 ciclos de aplicação do carregamento. Na figura também foram plotadas as curvas de fadiga obtidas por Ceratti (1991) para uma mistura de solo não arenoso A-1-B com 6% de cimento e por Sounthararajah et al (2018), para mistura de material granular (granítico) estabilizado com 3% de cimento. A três misturas apresentaram intervalos semelhantes de deformação, que foram de, aproximadamente, 55 x 10 -6 a 140 x 10 -6 , mostrando que os materiais cimentados não são capazes de suportar grandes deformações e que, portanto, o intervalo de variação das deformações é relativamente pequeno.…”

Section: Resistência à Tração Na Flexãounclassified

Estudos sobre Transporte – Volume 1

2021

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Modo de acesso: World Wide Web Inclui bibliografia 1. Engenharia 2. Educação.I. Título. CDD-629-4 Sônia Márcia Soares de Moura -CRB 6/1896 O conteúdo deste livro está licenciado sob a Licença de Atribuição Creative Commons 4.0. Com ela é permitido compartilhar o livro, devendo ser dado o devido crédito, não podendo ser utilizado para fins comerciais e nem ser alterada.O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos seus respectivos autores.

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Early-Age Fatigue Damage Assessment of Cement-Treated Bases under Repetitive Heavy Traffic Loading

Cited by 34 publications

References 22 publications

Stabilized High Clay Content Lateritic Soil Using Cement-FGD Gypsum Mixtures for Road Subbase Applications

Stabilized High Clay Content Lateritic Soil Using Cement-FGD Gypsum Mixtures for Road Subbase Applications

Fatigue Analysis for Void Repair of Cement Concrete Pavement with Under Slab by Polymer Grouting

Estudos sobre Transporte – Volume 1

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