Evaluation of Resilient Modulus for Lime- and Cement-Stabilized Synthetic Cohesive Soils

Achampong, Francis; Usmen, Mumtaz; Kagawa, Takaaki

doi:10.3141/1589-12

Cited by 20 publications

(2 citation statements)

References 2 publications

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“…Robnett and Thompson ( 16 ) suggested a correlation between the field performance and the elastic deflection of flexible pavements. After examining the resilient behavior of various untreated and lime-treated soil samples, they concluded that lime treatment can be used to improve the resilient behaviors of soils ( 17 ). Sauer and Weimer ( 18 ) also reported that the resilient modulus increases considerably when the lime content increases.…”

Section: Resilient Modulus Testmentioning

confidence: 99%

Evaluation of the Curing Time Effect on the Swelling, Unconfined Strength and Resilient Modulus of an Expansive Soil Improved with Hydrated Lime

Ünver

Lav

Çokça

et al. 2021

Transportation Research Record: Journal of the Transportation R

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Soils with high plasticity and high swell potential undergo great volume changes in the presence of unstable water content changes. The resulting expansion leads to damage to pavements and/or lightweight structures with such a subsoil. Expansive soils can be improved by adding chemical stabilizers such as lime, fly ash and micro cement. To construct a highway on an expansive subgrade soil, the subgrade should be stabilized to satisfy the minimum requirements of the highway standards. In this research, expansive clay samples were collected from clay deposits in the Akyurt district of Ankara (Turkey), near Esenboğa Airport. The swelling, strength and resilient modulus properties of the soil samples were determined via laboratory tests. First, reference tests were carried out on natural soil samples. Then, the clay samples were mixed with lime agent at different percentages (1%, 3%, 5%, 7% and 9%) according to the dry weight of the soil. The index, swelling, strength and resilient modulus (Mr) properties of these samples were determined. The soil samples were tested at 7, 28, 56 and 90-day curing times for each percentage of lime agent considered. The changes in the abovementioned properties, especially with regard to the effect of curing time on improvement, were interpreted in this research. Designing for a 7% lime content and a 28-day curing time can be a sound solution for addressing the expansive clay studied in this research, since the criteria of the Turkish Highway Standards are satisfied under these conditions.

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Section: Resilient Modulus Testmentioning

confidence: 99%

Evaluation of the Curing Time Effect on the Swelling, Unconfined Strength and Resilient Modulus of an Expansive Soil Improved with Hydrated Lime

Ünver

Lav

Çokça

et al. 2021

Transportation Research Record: Journal of the Transportation R

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show abstract

“…Achampong et al tested the resilient modulus for soil cement by using a repeated load triaxial test with variable deviator stress, moisture content, stabilizer type and content, curing period, and soil type (20). The authors concluded that the resilient modulus was dependent on deviator stress and the curing time.…”

Section: E F C = ( )mentioning

confidence: 99%

Evaluation of Characterization and Performance Modeling of Cementitiously Stabilized Layers in the Mechanistic–Empirical Pavement Design Guide

Saxena

Tompkins

Khazanovich

et al. 2010

Transportation Research Record: Journal of the Transportation R

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Cementitious stabilization of aggregates and soils is an effective technique to increase the stiffness of base and subbase layers. Furthermore, cementitious bases can improve the fatigue behavior of asphalt surface layers and subgrade rutting over the short and long term. However, it can lead to additional distresses such as shrinkage and fatigue in the stabilized layers. Extensive research has tested these materials experimentally and characterized them; however, very little of this research attempts to correlate the mechanical properties of the stabilized layers with their performance. The Mechanistic–Empirical Pavement Design Guide (MEPDG) provides a promising theoretical framework for the modeling of pavements containing cementitiously stabilized materials (CSMs). However, significant improvements are needed to bring the modeling of semirigid pavements in MEPDG to the same level as that of flexible and rigid pavements. Furthermore, the MEPDG does not model CSMs in a manner similar to those for hot-mix asphalt or portland cement concrete materials. As a result, performance gains from stabilized layers are difficult to assess using the MEPDG. The current characterization of CSMs was evaluated and issues with CSM modeling and characterization in the MEPDG were discussed. Addressing these issues will help designers quantify the benefits of stabilization for pavement service life.

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Ultrasonic Analysis of Artificial Cementation Effects on Tropical Clay Soils

Pereira,

Pitanga,

Ferraz

et al. 2023

Geotech Geol Eng

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Evaluation of Resilient Modulus for Lime- and Cement-Stabilized Synthetic Cohesive Soils

Cited by 20 publications

References 2 publications

Evaluation of the Curing Time Effect on the Swelling, Unconfined Strength and Resilient Modulus of an Expansive Soil Improved with Hydrated Lime

Evaluation of the Curing Time Effect on the Swelling, Unconfined Strength and Resilient Modulus of an Expansive Soil Improved with Hydrated Lime

Evaluation of Characterization and Performance Modeling of Cementitiously Stabilized Layers in the Mechanistic–Empirical Pavement Design Guide

Ultrasonic Analysis of Artificial Cementation Effects on Tropical Clay Soils

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