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Stabilization of clayey soils using asphalt emulsion and steel filings for subgrades
Estabilización de suelos arcillosos mediante emulsión asfáltica y virutas de acero para subrasantes
DOI:
https://doi.org/10.15446/dyna.v90n226.105839Palabras clave:
asphalt emulsion; steel filings; mechanical properties; soil stabilization; clays; urban pavements (en)emulsión asfáltica; virutas de acero; propiedades mecánicas; estabilización de suelos; arcillas; pavimentos urbanos (es)
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This research evaluates the changes brought about by the addition of asphalt emulsion and steel filings in clayey soils for subgrade in urban pavements. For this study, different dosages of each additive were established, being 1%, 2%, 4%, 8%, and 15% for the steel filings and 3%, 6%, 9%, 13%, and 18% for the asphalt emulsion, obtaining favorable results in the subgrade in accordance with the CE.010 Urban Pavement standard. With the steel filings the CBR (California Bearing Ratio) had a linear increase whose maximum value was reached with the dosage of 15% increasing the CBR considerably by 189.47% above the CBR of the natural soil; on the other hand, with the asphalt emulsion a maximum increase in CBR was obtained with the dosage of 13% obtaining an increase of 236.84% and after that a decrease is observed with the addition of 18% of asphalt emulsion.
Esta investigación evalúa los cambios producidos por la adición de emulsión asfáltica y limaduras de acero en suelos arcillosos para subrasante en pavimentos urbanos. Para este estudio se establecieron diferentes dosificaciones de cada aditivo, siendo 1%, 2%, 4%, 8% y 15% para las limaduras de acero y 3%, 6%, 9%, 13% y 18% para la emulsión asfáltica, obteniéndose resultados favorables en la subrasante de acuerdo con la norma CE.010 Pavimentos Urbanos. Con las limaduras de acero el CBR tuvo un incremento lineal cuyo valor máximo se alcanzó con la dosificación del 15% aumentando el CBR considerablemente en un 189,47% por encima del CBR del suelo natural; por otro lado, con la emulsión asfáltica se obtuvo un incremento máximo del CBR con la dosificación del 13% obteniéndose un incremento del 236,84% y posteriormente se observa un descenso con la adición del 18% de emulsión asfáltica.
Referencias
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