Geotechnical Behavior of Construction Waste (CW) as a Partial Replacement of a Lateritic Soil in Fiber-Reinforced Cement Mixtures

It is increasingly important to find solutions for the problem of construction waste (CW) which is generated in high quantities and is often disposed of irregularly. The reuse of this material in large scale projects, such as base and sub-base layers for road pavements, can lead to long term environ...

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Bibliographic Details
Published in:Geotechnical and geological engineering 2021-02, Vol.39 (2), p.919-942
Main Authors: Lukiantchuki, Juliana Azoia, de Oliveira, José Renato Moreira da Silva, de Almeida, Márcio de Souza Soares, dos Reis, Jeselay Hemetério Cordeiro, Silva, Tiago Betinardi, Guideli, Leandro Canezin
Format: Article
Language:English
Subjects:
Cement
Cement reinforcements
Civil Engineering
Compressive strength
Concrete
Construction
Construction industry wastes
Construction materials
Earth and Environmental Science
Earth Sciences
Fiber reinforced cements
Fiber reinforced polymers
Fibers
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Laboratory tests
Original Paper
Polypropylene
Portland cement
Portland cements
Reinforced cements
Shear strength
Soil
Soil mixtures
Soil testing
Soils
Tensile strength
Terrestrial Pollution
Waste Management/Waste Technology
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Summary:It is increasingly important to find solutions for the problem of construction waste (CW) which is generated in high quantities and is often disposed of irregularly. The reuse of this material in large scale projects, such as base and sub-base layers for road pavements, can lead to long term environmental benefits. This paper describes the novel use of CW to partially replace a lateritic natural soil in fiber-reinforced cement mixtures. In addition to the CW, Portland cement and polypropylene fibers were added to the natural soil as a percentage of its dry mass. The geotechnical characterization, unconfined compressive strength, tensile strength, direct shear strength, permanent strain and resilient modulus were used to the evaluate the effect of polypropylene fiber and Portland cement on the behavior of the soil–CW mixtures. Laboratory test results indicate that the partial replacement of soil with CW and the addition of 0.1% of 50 mm long polypropylene fiber to soil–CW mixtures produces a viable alternative material for geotechnical applications, with better performance than natural soil alone.
ISSN:0960-3182
1573-1529
DOI:10.1007/s10706-020-01533-w