Increase in Bearing Capacity in Subgrade Composed of Low Plasticity Clays Using Stabilization with Fiberglass Powder

Cynthia Carhuapoma, Jaime Tito, Manuel Silvera, Fernando Campos

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Low plasticity clays are characterized by having a high moisture content, low cohesion, and a poor capacity to resist shear stress between soil particles. The behavior of these clays in subgrade for pavements is low performance due to their low resistance capacity to imparted cyclical load. Considering these limitations, subgrade soils must be stabilized to improve their bearing capacity, which must be able to withstand the loads imparted throughout the pavement structure. A sustainable stabilization alternative is the use of recycled fiberglass dust, which improves the performance of the mechanical properties of resistance to the cutting of subgrade soils. This research aims to provide a stabilization proposal applied to supersaturated clay soils with a high percentage of humidity, which reduces the water content between particles and increases the pavement subgrade's bearing capacity. For this, stabilization was carried out in clay soils of low plasticity incorporating recycled fiberglass powder in proportions of 6%, 8%, 10%, and 12% by dry weight of material. To validate the stabilization proposal, the California Bearing Ratio Test (CBR) was performed. Laboratory results showed that CBR increased from 3.7% to 13%. Finally, the Bearing capacity of soils improved by 250% under stabilized conditions.

Idioma originalInglés
Título de la publicación alojadaProceedings of the 6th Brazilian Technology Symposium, BTSym 2020 - Emerging Trends and Challenges in Technology
EditoresYuzo Iano, Osamu Saotome, Guillermo Kemper, Ana Claudia Mendes de Seixas, Gabriel Gomes de Oliveira
EditorialSpringer Science and Business Media Deutschland GmbH
Número de páginas8
ISBN (versión impresa)9783030756796
EstadoPublicada - 2021
Publicado de forma externa
Evento6th Brazilian Technology Symposium, BTSym 2020 - Virtual, Online
Duración: 26 oct. 202028 oct. 2020

Serie de la publicación

NombreSmart Innovation, Systems and Technologies
ISSN (versión impresa)2190-3018
ISSN (versión digital)2190-3026


Conferencia6th Brazilian Technology Symposium, BTSym 2020
CiudadVirtual, Online


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