Investigating the Effecting of Nano Aluminum on Mechanical and Volumetric Properties of Clay

Document Type : Research Article


Department of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran


In this paper, the effects of gamma oxide nano-aluminum as the cement modifier; on volumetric and mechanical properties of problematic clay using an experimental research were described. Initially, the impact of cement was evaluated for soil improvement and in the following the impact of cement mixed with nano-aluminum on soil properties were investigated. Evaluation of these effects was done in curing period from 1 day to 28 days. Properties evaluated in this study included Atterberg limits, density and proctor compaction, uniaxial compressive strength, California bearing ratio and the power of hydrogen (pH). Scanning Electron Microscopy (SEM) analysis had also been used to monitor and evaluate the impact of nano-scale materials. Results of this study indicated that in the short-term behavior, the effect of nano-aluminum in increasing the strength and setting speed was very tangible. Also the very small percentage of nano-material could be alternative for a significant proportion of cement in the improvement and modification of soil, which reflects the economic impact of nano material as well.


Main Subjects

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