MATEC Web Conf.
Volume 271, 20192019 Tran-SET Annual Conference
|Number of page(s)||5|
|Published online||09 April 2019|
Development of Alternative Stabilization Methods for Transportation Infrastructure Based on Geopolymers
Department of Materials Science & Engineering, Texas A&M University, College Station, TX 77843-0001
2 Department of Civil Engineering, University of Texas at Arlington, Arlington, TX 76019-0001
Current soil stabilization methods are often limited by durability and leaching issues and do not always offer sustainable treatments. This research explores the use of geopolymers to stabilize clays in the North Texas area. In recent years, geopolymer has received much attention as an eco-friendly and sustainable alternative to conventional chemical additives, since it can be processed at room temperature from aqueous solutions by utilizing waste materials and/or abounded natural sources. Two subgrade soils from North Texas were treated with GP mix at a ratio of 8 wt% dry GP to dry soil. GP is shown to reduce swelling and shrinkage potential of soil considerably while an increase in unconfined compressive strength is observed as well. Therefore, further studies are recommended to understand the mechanism of GP and soil bonding resulting in said changes.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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