Environmental Effect of Adding Zeolite and Sawdust on the Unconfined Strength of Stabilized Soil by Cement

Document Type : Research Article

Authors

1 Department of Civil Engineering, Faculty of Engineering, Qom University of Technology, Qom, Iran

2 Qom University of Technology (QUT)

3 Member of Civil Engineering/ Qom University of Technology (QUT)

4 Civil Engineering department, Faculty of Engineering, Qom University of Technology

Abstract

Nowadays unlike decades ago, the environment plays a decisive role in using materials in construction. For example, one considerable part of a project is exploring environmental aspects as a preparatory topic. Chemicals such as cement have been used for decades in construction projects, however chemicals will lead to health catastrophes for both environment and humans consequently. One considerable hitch in human life is waste materials such as sawdust which will jeopardize the environment. One solution to alleviate these problems is using wastes in construction projects as substitution for cement. In this research, sawdust and zeolite were used to decrease cement use on sandy soil's improvement. The amount of materials are as follows: 4% cement (based on main soil weight), 0,1,3 and 5 % sawdust with two different sizes including powder and fibers (as supersede by cement) and 0, 10, 30 and 50 % zeolite as a supersede by cement. Results showed that zeolite and sawdust increase OMC but decrease MDD. Zeolite meets its optimum in 30% and powdered and fibrous sawdust in 3 and 1% subsequently. Finally, rupture strain will experience a sharp increase by enhancing the amount of sawdust. Overall it can be concluded that longer sawdust is more effective than short one.

Keywords

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References

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Amirkabir Journal of Civil Engineering
Volume 54, Issue 11
February 2023
Pages 4287-4306

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