Laboratory Evaluation of Finely Milled Brick Debris as a Soil Stabilizer

Cesar Hidalgo, Gloria Carvajal and Fredy Muñoz
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Cesar Hidalgo: School of Engineering, Civil Engineering Program, Universidad de Medellin, Medellin 050026, Colombia
Gloria Carvajal: School of Engineering, Civil Engineering Program, Universidad de Medellin, Medellin 050026, Colombia
Fredy Muñoz: School of Engineering, Civil Engineering Program, Universidad de Medellin, Medellin 050026, Colombia

Sustainability, 2019, vol. 11, issue 4, 1-12

Abstract: Brick is one of the most common building materials, and it is also one of the largest components of waste generated from both construction and demolition. Reuse of this waste would reduce the environmental and social impacts of construction. One potential bulk use of such waste is as a cementing agent for soil stabilization. However, this is currently limited by the need to mill the residue to a particle size below 0.035 mm. In this study, the behavior of two soil types stabilized using alkali-activated brick dust was investigated. The unconfined compression strength at different curing temperatures and moistures and the use of different types and concentrations of alkaline activators were investigated. It was found that the addition of brick dust resulted in an increase in the soil strength between 1.7–2.3 times with respect to the non-stabilized material, suggesting that the resulting materials will find practical applications in construction.

Keywords: construction waste; demolition waste; brick dust; alkali-activation; geopolymers; soil stabilization; strength improvement; binder materials; compressive strength (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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