Nano-MgO is a low-carbon green stabilizer for stabilization of soils containing municipal solid waste

Subject Areas : Research On Surface Engineering and Nanomaterials Science

Navid  Khayat ¹ (Department of Civil Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran)
shadi  jafari ² (Department of Civil Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran)

Received: 2023-07-16 Accepted : 2023-09-13 Published : 2023-09-21

Keywords: Nano-Mgo, Stabilization, Macrostructure, Microstructure,

Abstract :

This study aims to help the environment with nano materials to increase the strength of soils containing municipal solid waste. Nanomaterials have been accepted in geotechnical and geo-environmental engineering due to their non-toxic nature and less energy consumption required for production. Therefore, in this study, four different percentages of Nano-MgO (0.25, 0.5, 0.75 and 1%) as a stabilizer in soils containing different percentages of municipal solid waste (15, 25, 35 and 45%) has been used. The results of the unconfined compressive strength test in dry state and in wet and dry cycles show that the specimens containing 15% waste which are stabilized with 1% Nano-MgO can show better durability and strength behavior. This result was also confirmed by the scanning electron microscope test with the formation of a flocculated structure. Therefore, the use of Nano-MgO in soils containing municipal solid waste with an optimal amount can be effective in solving soil problems.

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