The important aspects of subgrade stabilization for road construction

Daud, Nik Norsyahariati Nik; Jalil, Falil Nisa Abdul; Çelik, Semet; Albayrak, Zeynep Neşe Kurt

doi:10.1088/1757-899x/512/1/012005

Cited by 9 publications

(6 citation statements)

References 6 publications

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“…Finalmente, se observó un incremento importante del CBR, tanto con el aditivo Consolid 444, como con el aditivo Con-Aid, por lo tanto el suelo pasa de ser una subrasante pobre, con un valor de CBR de 5,49%, a ser una subrasante excelente, con un CBR de 52,04% en la muestra tratada con 0,050% de Consolid 444 y 53,60% en la muestra tratada con 5 ml de Con-Aid. propiedades y mecánicas respecto a la cantidad de dosificación y tiempo de curado, tal y como lo menciona [20], "la mayoría de los aditivos mezclados con suelos problemáticos pueden ser evaluados en términos de sus propiedades de resistencia en función tanto del porcentaje de aditivo en la mezcla como del tiempo de curado" (p.4).…”

Section: Resultados Del Suelo Tratado Con Aditivo Con-aidunclassified

“…La población de estudio estuvo conformada por la carretera Pedro Ruiz -San Carlos, la cual tiene una longitud total de 10+000km. En el tramo de carretera desde el km 3+000 hasta el 4+000 se realizó una exploración de campo (01 calicata) que, según el Manual de Carreras, Suelos, Geología, Geotecnia y Pavimentos del MTC [18], menciona que "para determinar las características físico-mecánicas de los materiales de la sub-rasante se llevarán a cabo investigaciones mediante la ejecución de pozos exploratorios o calicatas de 1,5 m de profundidad mínima" (p. 26) [20].…”

Section: Metodologíaunclassified

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Estudio comparativo de los aditivos químicos Consolid 444 y Con-Aid para el mejoramiento de la subrasante en suelos arcillosos

2023

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La presente investigación tuvo como objetivo comparar los aditivos químicos Consolid 444 y Con-Aid para mejorar la capacidad de soporte de un suelo arcilloso. Las muestras fueron extraídas del tramo de la carretera Pedro Ruiz–San Carlos entre los km 3+000 y 4+000, provincia de Bongará, Perú; asimismo se realizaron ensayos de laboratorio para determinar las propiedades físicas y mecánicas del suelo estabilizado y sin estabilizar. Los resultados obtenidos indicaron que el suelo natural fue clasificado como CL según SUCS, y AASHTO como A-7-6 (17), además con la adición de 0,035% para el aditivo Consolid 444 y 2 ml para el aditivo Con-Aid, se logró un incremento de CBR al 95 % de 5,49% a 28,65% y 24,32% respectivamente. Por otro lado, se verificó que el valor de CBR aumentó, al incrementar los periodos de curado a los 7, 14 y 28 días para ambos aditivos. En conclusión, los aditivos Consolid 444 y Con-Aid mejoraron el comportamiento mecánico del suelo arcilloso, logrando subrasantes excelentes

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Section: Resultados Del Suelo Tratado Con Aditivo Con-aidunclassified

Section: Metodologíaunclassified

Estudio comparativo de los aditivos químicos Consolid 444 y Con-Aid para el mejoramiento de la subrasante en suelos arcillosos

2023

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“…The amount of lime in most soil stabilizers ranges between 5 % and 10 %. Lime modification is a strength increase caused by cation exchange capacity rather than cementitious effects caused by pozzolanic reactions [5]. Improved lime stability technical properties of the soil, including increased strength;…”

Section: Methodsmentioning

confidence: 99%

Subgrade stabilization for road foundation in application for inundated area in Perlis, Malaysia

Ghazaly,

Bawadi,

Ahmad

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Inundated areas, which are prone to frequent flooding, pose significant challenges for road infrastructure due to the adverse effects of water on subgrade soils. Thus, the objectives of this research were to identify and characterize the soil type from roadside of Kampung Bakau, Kangar, Perlis, and evaluate and propose the effective subgrade stabilization methods to enhance the performance and durability of road foundations under such condition. In this research, atterberg limit, standard proctor, and california bearing ratio (CBR) tests were conducted. For CBR test, 6 sets of soil samples were considered. In addition, during the CBR tests, soaked and unsoaked method were performed to simulate the condition of flooding. In general, the soil samples taken were characterized as high plasticity silt. Besides that, the results obtained from CBR test showed that lime with 8 % addition in mixture provides the highest strength which was 4.50 kN of load resisted at 2.00 mm penetration. Meanwhile, cement with 3 % addition in mixture showed the lowest strength observed in the CBR test which was 1.75 kN. In conclusion, this research showed that for high plasticity silt type of soil, the optimized subgrade stabilization method is by lime with 8 % addition in mixture.

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“…In contrast to rigid pavements, the sequence of thicknesses in flexible pavements aims at supporting and distributing the imposed loads through each sublayer; the purpose of this structural logic is to contribute to the attenuation of the stresses generated by traffic on the underlying soil [18]. Although stresses decrease with depth, the unbound soil thicknesses contribute to the overall structural capacity of flexible pavements by more than 50% [19].…”

Section: Literature Reviewmentioning

confidence: 99%

An Eco-Sustainable Stabilization of Clayey Road Subgrades by Lignin Treatment: An Overview and a Comparative Experimental Investigation

2021

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Subgrade conditions significantly affect functionality of the road pavement during its service life. Among the different stabilization techniques for upgrading poorly performing in-situ soil subgrades, an economically attractive example involves the use of waste materials, such as lignin. A deep bibliographic analysis of previous studies is carried out in the first section of this paper. The literature review suggests that use of lignin as a stabilizing agent of road subgrade soils is not completely consolidated. In addition, this study reports an investigation on the strength and performance characteristics of a lignin-treated clayey soil. Several experimental tests were carried out on both the untreated and lignin-treated soils in order to shed some light on different aspects with limited knowledge available, such as the behaviour of the stabilised soil in specific conditions (e.g., the presence of water). Finally, the test results are discussed and compared with those obtained when the same soil is treated with lime, which is more widely used. The most relevant finding is the poor ability of lignin to upgrade the bearing capacity of the soil in wet conditions compared to lime; on the contrary, the presence of lignin helped in controlling the swelling potential of this type of soil.

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The important aspects of subgrade stabilization for road construction

Cited by 9 publications

References 6 publications

Estudio comparativo de los aditivos químicos Consolid 444 y Con-Aid para el mejoramiento de la subrasante en suelos arcillosos

Estudio comparativo de los aditivos químicos Consolid 444 y Con-Aid para el mejoramiento de la subrasante en suelos arcillosos

Subgrade stabilization for road foundation in application for inundated area in Perlis, Malaysia

An Eco-Sustainable Stabilization of Clayey Road Subgrades by Lignin Treatment: An Overview and a Comparative Experimental Investigation

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