Effect of Swelling Soil on Pavement Condition Index of Airport Runway Pavement

Miah, Md. Tofail; Oh, Erwin; Chai, Gary; Bell, Phil

doi:10.1177/03611981221090517

Cited by 6 publications

(3 citation statements)

References 24 publications

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“…These soils possess complex behavior of volume changes such as shrinking and swelling at low depths due to variations in soil moisture content [3,4]. The volume change behavior is caused by the expansive clay minerals such as smectite which has the capability to absorb water [1,5]. ESs are believed as weak materials due to their inexpedient characteristics.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of improvement and best-fit models for the prediction of geotechnical properties of lime stabilized expansive soil used in pavement subgrade

Naveed,

Ahmed,

Ullah

et al. 2024

Mehran Univ. res. j. eng. technol.

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The performance of a pavement mainly depends on the quality of the subgrade layer. Expansive soils (ES) are extensively found worldwide including Pakistan. The inadequate strength and swelling behaviour of these soils are the main problems in any road construction project. Several researchers in the last decades have attempted to improve expansive soil utilizing various materials such as lime, brick kiln dust and fly ash. The purpose of this research was to evaluate the effect of lime on the engineering properties of the ES of a highway subgrade in the Sialkot region of Pakistan. The influence of different lime dosages (0%, 2%, 4% and 6%) at curing ages (1, 7, 14 and 28 days) has been examined by pH tests, plasticity tests, compaction tests, unconfined compressive strength (UCS), free swell index, and California Bearing Ratios (CBR). A field CBR and plate load test (PLT) on the natural soil and optimum lime-treated soil with various curing periods have been carried out for applicability as subgrade material. The test findings demonstrated that higher lime dosages increased the strength and ultimate bearing capacity (𝑞𝑢𝑙𝑡) of improved ES and at the same time decreased the free swelling index (FSI), optimum moisture content (OMC), maximum dry density (MDD) and permanent deformation of the subgrade soil. The UCS values of soil treated with 2%, 4% and 6% lime increased almost by 324%, 523%, and 249% for unsoaked samples and 285%, 351% and 231% for soaked samples respectively as compared to the plain soil at 28 days curing period. The laboratory CBR values significantly increased 2.35-8.50 times and field CBR improved 5.6 times as compared to the plain soil. The 𝑞𝑢𝑙𝑡 of lime-treated soil increased by 162% as compared to the plain soil and permanent deformation reduced from 33 mm to 2 mm after 28 days. Furthermore, equations were developed to estimate the best fit for the prediction of various geotechnical parameters and coefficient of determination (R2 ) values for all equations were found higher than 0.90. From the results, it has been concluded that adding the optimum lime content of 4% by weight satisfies the requirement for the subgrade construction of highways and the developed expressions can provide a scientific basis for estimating the geotechnical parameters.

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Section: Introductionmentioning

confidence: 99%

Mechanism of improvement and best-fit models for the prediction of geotechnical properties of lime stabilized expansive soil used in pavement subgrade

Naveed,

Ahmed,

Ullah

et al. 2024

Mehran Univ. res. j. eng. technol.

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“…Expansive soil has the potential to inflict significant damage, necessitating expensive repairs. One potential approach to alleviating the adverse effects of expansive soil on road infrastructure is the implementation of soil reinforcement techniques with a range of materials [4][5][6][7][8][9]. These studies aimed to evaluate the impact of glass fiber and rubber on the characteristics of expansive soil and their potential application as subgrade reinforcement in road construction [10].…”

Section: Introductionmentioning

confidence: 99%

Utilization Potential of Glass Fiber and Crumbled Rubber as Subgrade Reinforcement for Expansive Soil

Al-Khazaleh,

Al-Masri,

Al-Khodari

et al. 2023

J. Hum. Earth Future

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Due to its high potential for volume change, expansive soil is a problematic building material that can cause harm to road infrastructure. The purpose of this study is to examine the effect of glass fiber and rubber on the properties of expansive soil and their suitability as subgrade reinforcement in road applications. For different percentages of glass fiber and rubber in the soil, the Maximum Dry Density (MDD), Optimum Moisture Content (OMC), and CBR were measured. The results demonstrated that the incorporation of glass fiber and rubber improved the soil's properties. With increasing fiber and rubber content, the MDD and CBR increased, while the OMC decreased. In addition, the strength of the reinforced soil was significantly greater than that of the unreinforced soil. The research indicates that the addition of glass fiber and rubber can improve the efficacy of expansive soil as subgrade reinforcement in road applications. Doi: 10.28991/HEF-2023-04-03-06 Full Text: PDF

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“…Expansive soils cause damage to several civil engineering structures, including spread footings, roads, highways, airport runways, and earth dams [1]. In the United States, the annual average damage from tornadoes, earthquakes, hurricanes, and 􀅫loods combined is larger than the damage caused by expansive clays.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement Effect of Polypropylene Sheet on Soil Strength with Cement

Sajjad¹,

Taj²,

Bukhsh³

et al. 2022

J. ICT des. eng. technol. sci.

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Following thorough soil investigation, the designs for the foundations and other structures are made. The foundations and structures are more reliable and safer when the right soil is used. In this study, cement-coated Polypropylene (PP) sheets were employed to strengthen the soil, enhancing its shear strength and other characteristics. Two (2) soil samples were taken to compare the average outcomes and minimize error. Before using PP sheets for soil reinforcement, various index and strength parameters, such as breaking tensile strength, elastic modulus, and breaking and fusion points, among others, were examined. Properties like liquid and plastic limit, speci􀅮ic gravity, Maximum Dry Density (MDD), and Optimum Moisture Content (OMC) were examined as discussed. Reinforcement of 0%, 0.05%, 0.15%, and 0.25% were applied and tested against shear strength evaluation with the help of a direct shear test. An increase in strength is observed in soil samples 1 and 2, i.e., 1.27, 2.25, 2.27 and 1.28, 1.42, 1.65, and 1.79 in kg/cm 2 , respectively. Similarly, uncon􀅮ined compression strength was observed to increase from 0.0692 MPA to 0.0942 MPA, which is 11.68% and 35.94% increment in soil samples 1 and 2 at 0% and 0.05% reinforcement, respectively.

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Effect of Swelling Soil on Pavement Condition Index of Airport Runway Pavement

Cited by 6 publications

References 24 publications

Mechanism of improvement and best-fit models for the prediction of geotechnical properties of lime stabilized expansive soil used in pavement subgrade

Mechanism of improvement and best-fit models for the prediction of geotechnical properties of lime stabilized expansive soil used in pavement subgrade

Utilization Potential of Glass Fiber and Crumbled Rubber as Subgrade Reinforcement for Expansive Soil

Reinforcement Effect of Polypropylene Sheet on Soil Strength with Cement

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