Investigation of factors affecting the behaviour of subgrade soils resilient modulus using robust statistical methods

Khasawneh, Mohammad Ali

doi:10.1080/10298436.2017.1394101

Cited by 15 publications

(2 citation statements)

References 10 publications

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“…This decline can be explained by the fact that the RLT samples were prepared at OMC, which was equivalent to about 85%-90% saturation level [5,6]. During the RLT test, the strain softening occurred as the bulk stress increased which in turn, increased pore pressure, lowered the effective confining stress, and led to a reduction in the Mr values, as per the findings of Khasawneh [34].…”

Section: Comparison With Surrounding Subgrade Soilsmentioning

confidence: 76%

Cement and Fly Ash-Treated Recycled Aggregate Blends for Backfilling Trenches in Trafficable Areas

Yaghoubi,

Al-Taie,

Miri Disfani

et al. 2023

Preprint

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Section: Comparison With Surrounding Subgrade Soilsmentioning

confidence: 76%

Cement and Fly Ash-Treated Recycled Aggregate Blends for Backfilling Trenches in Trafficable Areas

Yaghoubi,

Al-Taie,

Miri Disfani

et al. 2023

Preprint

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“…Numerous researchers, such as Oh et al [14], Han and Vanapalli [15], Abu-Farsakh et al [16], have observed that subgrade resilient modulus is significantly affected by deviatoric stress, density and moisture content, especially in fine-grained soils. The effect of confinement on resilient modulus values varies depending on the type of material and its properties [17].…”

Section: Repeated Load Triaxial (Rlt) Testmentioning

confidence: 99%

Using Repeated Light-Weight Deflectometer Test Data to Predict Flexible Pavement Responses Based on the Mechanistic–Empirical Design Method

Kuttah

2024

Construction Materials

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This study investigated the potential of lightweight deflectometer (LWD) data in predicting layer moduli and response measurements within the Mechanistic–Empirical Pavement Design Guide. To achieve this goal, field repeated LWD tests and laboratory repeated load triaxial tests were carried out on granular base material compacted at 3% and 6% water content, sandy subgrade soil compacted at 3%, 4% and 9% water content and silty sand subgrade soil compacted at 8% and 10% water content. The results revealed that substituting traditional repeated load triaxial (RLT) data with LWD data for predicting these parameters was notably effective for cohesionless materials, especially for unbound granular materials (UGMs) compacted at optimum water content. The accuracy and reliability of predictions were remarkably high, showcasing the potential of LWD to enhance efficiency and precision in pavement design within this context. Conversely, for cohesive road materials, the study emphasized the importance of considering specific material properties and water content when integrating LWD into the Mechanistic–Empirical Pavement Design Guide. The distinctive characteristics and behaviors of cohesive materials necessitate a nuanced approach. This understanding is critical to ensuring the accuracy and reliability of pavement design and assessment across diverse conditions. In summary, the study presents a promising avenue for utilizing LWD data in cohesionless road materials, offering potential cost and time-saving advantages. Additionally, it underscores the necessity of tailored approaches when considering material properties and moisture content for cohesive materials, thereby advancing the field of pavement engineering by providing insights for improved practices and adaptable frameworks.

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Development of Analytical Models to Predict the Dynamic Shear Rheometer Outcome—Phase Angle

Khasawneh

Al-Oqaily

2022

Int. J. Pavement Res. Technol.

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Investigation of factors affecting the behaviour of subgrade soils resilient modulus using robust statistical methods

Cited by 15 publications

References 10 publications

Cement and Fly Ash-Treated Recycled Aggregate Blends for Backfilling Trenches in Trafficable Areas

Cement and Fly Ash-Treated Recycled Aggregate Blends for Backfilling Trenches in Trafficable Areas

Using Repeated Light-Weight Deflectometer Test Data to Predict Flexible Pavement Responses Based on the Mechanistic–Empirical Design Method

Development of Analytical Models to Predict the Dynamic Shear Rheometer Outcome—Phase Angle

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