Waste-to-energy ash for treating highly expansive clays in road pavements

Zimar, Z.; Robert, Dilan; Sidiq, A.; Zhou, Annan; Giustozzi, Filippo; Setunge, Sujeeva; Kodikara, J.

doi:10.1016/j.jclepro.2022.133854

Cited by 14 publications

(5 citation statements)

References 47 publications

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“…It is driven into the soil using a 17.6 lb (8 kg) hammer dropped from 22.6 in (575 mm). Soil shear strength is reported as the Dynamic Cone Penetration Index (DPI) in mm per blow at selected intervals [1][2][3]7,[9][10][11][12][13][21][22][23][24]26,28,30,[33][34][35][36][37][38][39][40][41][42][43][44][45][46]. Equation 1 determines the drive rod movement based on hammer blows (Fig.…”

Section: Dcp Methods and Apparatusmentioning

confidence: 99%

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The Role of Dynamic Cone Penetrometer Testing in Assessing Pavement Subgrade Strength: A Literature Review

Garcia

2024

GEOMATE

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In-situ tests for predicting geotechnical parameters related to shear strength, such as California Bearing Ratio (CBR), typically require drilling boreholes and manual cone driving, which can be timeconsuming, expensive, and labor-intensive. The Dynamic Cone Penetrometer Test (DCPT) has emerged as a simpler, faster, and less expensive alternative for predicting CBR and other geotechnical parameters. This systematic review uses Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to examine relevant literature on DCP testing for accurately predicting CBR and other geotechnical parameters. After trimming 111 relevant studies to 55, the review discusses various research questions, including the correlation between DCP and CBR, factors such as water content and seasonal variations, and recent advances in DCP testing. The review emphasizes the importance of considering unsaturated soil behavior, such as soil suction, in pavement subgrade design to ensure the longevity and quality of the pavement. The findings provide compelling evidence for the utilization of DCP testing as an essential tool for predicting geotechnical parameters and designing high-performance pavements. By demonstrating the DCPT's remarkable convenience, reliability, and cost-effectiveness in CBR and geotechnical parameter prediction, this study paves the way for significant advancements in pavement design efficiency and economic viability.

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Section: Dcp Methods and Apparatusmentioning

confidence: 99%

“…In highway subgrade construction, using soil with higher water content than optimum can hinder achieving target compaction [9]. Seasonal moisture fluctuations can also cause swelling in expansive clay subgrades, leading to pavement top layer uplift [10].…”

Section: Introductionmentioning

confidence: 99%

The Role of Dynamic Cone Penetrometer Testing in Assessing Pavement Subgrade Strength: A Literature Review

Garcia

2024

GEOMATE

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“…In India, 40% of soils are classified as expansive and found in all states. The building industry has long known the negative impact of expansive soils on foundations since shrinking and swelling of such soils cause substantial physical and economic harm [5,6]. Differential motions caused by expanding soils can result in significant infrastructure damage.…”

Section: Introductionmentioning

confidence: 99%

Strength and Stiffness Forecasting of mechanically altered Black Cotton Soil and Red Soil using ANN Principles

Alisha,

Venkateswarlu,

Sreenivas

2023

Preprint

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In recent years, in developing nations, importance of village roads with sustainable and low-cost are gaining importance. In this study an attempt has been made to understand the strength and stiffness of mechanically altered soils. The locally available Lateritic soil and black cotton soil can be used in the construction field to improve the properties of soils for building foundations, roadways, and other engineering structures. The main goal of this study was to investigate the effects of mixing different percentages of red soil and black cotton soils on the physical and mechanical properties of the blended soil. Experimental investigation was carried to determine various properties such as shear strength, compressibility, water content, and differential swell index, of blended soils. The results of these tests were then compared to the properties of the individual soils to determine the effects of mechanically alteration on the overall properties of the soil. This experiment is important in the construction field as it allows engineers and contractors to determine the optimal mix of soils for specific construction projects. This experiment can be used to improve the overall soil quality in construction sites, which can lead to cost savings and improved durability of structures built on the site. Finally, the results thus obtained are trained to an Artificial Neural Network (ANN) and the relation between the engineering properties, UCS, and CBR are obtained. The prediction models show higher performance with correlation coefficients of 0.986 and 0.980, respectively. Overall, the blending of red soil and black cotton soil is an important experiment in the construction field that provides valuable information on the properties of blended soils and how they can be used in construction projects to improve the overall quality, durability, and stability of engineering structures.

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“…Their mechanical properties are similar to dense sand [ 10 ]. MSWI BA is an excellent road material, which can be used to treat poor soil [ 11 ], fill subgrade and act as aggregate in asphalt mixture, cement concrete and pavement base [ 12 , 13 , 14 ]. Scholars have conducted a lot of research on the application of MSWI BA in cement-stabilized macadam bases [ 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Research on Pavement Performance of Cement-Stabilized Municipal Solid Waste Incineration Bottom Ash Base

Shi

Sun

et al. 2022

Materials

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In order to clarify the influence of the municipal solid waste incineration bottom ash (MSWI BA) content on the pavement performance of the cement-stabilized macadam, the MSWI BA with 0%, 25%, 38% and 50% content was used instead of fine aggregates. To explore the feasibility of building pavement base with cement stabilized MSWI BA, the cement-stabilized MSWI BA mixture was prepared by mixing the MSWI BA at the mass fraction of 50%, 75% and 100% with fine crushed stuff. Subsequently, the compaction test and 7 days unconfined compression test were conducted with 4%, 5% and 6% cement dosage. The compaction test, unconfined compressive strength test, splitting strength test, compressive resilient modulus test and frost resistance tests were carried out based on the long-age samples with an optimal cement dosage of 5%. Furthermore, the unconfined compressive constitutive model was established based on the test data. Afterwards, the test road was built to measure the practical effect of MSWI BA on road construction. Meanwhile, energy-saving and emission-reduction analyses were conducted on the MSWI BA road. The results showed that under 5% cement dosage, the mechanical properties and frost resistance of the mixture with different MSWI BA content both satisfied the specification requirements; during the construction, the appropriate MSWI BA content could be selected according to the requirements of different highway grades in the specification. The established segmented constitutive model could well simulate the stress–strain relationship of the mixture in the compressive process. Using cement-stabilized MSWI BA to build the pavement base was feasible, which provided not only an important reference for the engineering design but also had positive significance for promoting carbon peaking, carbon neutrality and sustainable development of highway engineering construction.

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Waste-to-energy ash for treating highly expansive clays in road pavements

Cited by 14 publications

References 47 publications

The Role of Dynamic Cone Penetrometer Testing in Assessing Pavement Subgrade Strength: A Literature Review

The Role of Dynamic Cone Penetrometer Testing in Assessing Pavement Subgrade Strength: A Literature Review

Strength and Stiffness Forecasting of mechanically altered Black Cotton Soil and Red Soil using ANN Principles

Research on Pavement Performance of Cement-Stabilized Municipal Solid Waste Incineration Bottom Ash Base

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