Use of Sludge Ash as a Stabilizing Additive in Soil-Cement Mixtures for Use in Road Pavements

Ingunza, Maria del Pilar Durante; Pereira, Kiev Luiz de Araújo; Santos, Olavo Francisco dos

doi:10.1061/(asce)mt.1943-5533.0001168

Cited by 15 publications

(1 citation statement)

References 9 publications

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“…There have been satisfactory attempts to exploit the sewage sludge ash (SSA) reported worldwide. Most studies concern the application of the SSA as a fractional substitute for cement or aggregate for concrete [9][10][11][12][13] or soil stabilization [14]. Geoengineering studies were carried out on the use of by-product to stabilize soft subsoil of cohesive soils in a 4:1 ratio with cement or hydrated lime [15,16].…”

Section: Introductionmentioning

confidence: 99%

Sewage Sludge Bottom Ash Characteristics and Potential Application in Road Embankment

Zabielska-Adamska

2019

Sustainability

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The paper focuses on sustainability-related applications in civil engineering by using environmentally friendly, alternative construction materials. The paper presents geotechnical properties of thermally converted, municipal sewage sludge in a grate furnace in an incineration plant. Bottom ash and its mixture with sand have been tested to show that they can be considered as a substitute for natural soil built-in road embankments. The product of sewage sludge combustion and its combination with sand meet all code requirements for material suitable for road embankments. As a result of the 30% reduction of resistance to failure values after waste soaking, which causes relatively low California Bearing Ratio (CBR) values of soaked waste, waste should be built into places isolated from groundwater and precipitation. That is also indicated by the possibility of heavy metals leaching from the waste because such content is much higher than in uncontaminated soils, although leaching does not exceed the limits commonly quoted for natural soil solutions. Tested bottom ash as a product of combustion in a grate furnace is a more preferred material for earthworks than fly ash generated during incineration in a furnace with fluidized bed due to the particle size and heavy metal concentrations.

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Section: Introductionmentioning

confidence: 99%

Sewage Sludge Bottom Ash Characteristics and Potential Application in Road Embankment

Zabielska-Adamska

2019

Sustainability

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Sustainable utilization of sewage sludge ash in stabilizing subgrade soil: an appraisal

Sah,

Kumar

2024

Environ Dev Sustain

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Strength and Durability Characteristics of Cement and Class F Fly Ash-Treated Black Cotton Soil

Chethan

Shankar

2021

Indian Geotech J

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Use of Sludge Ash as a Stabilizing Additive in Soil-Cement Mixtures for Use in Road Pavements

Cited by 15 publications

References 9 publications

Sewage Sludge Bottom Ash Characteristics and Potential Application in Road Embankment

Sewage Sludge Bottom Ash Characteristics and Potential Application in Road Embankment

Sustainable utilization of sewage sludge ash in stabilizing subgrade soil: an appraisal

Strength and Durability Characteristics of Cement and Class F Fly Ash-Treated Black Cotton Soil

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