Strength Properties of Sand Reinforced with a Mixture of Organic Polymer Stabilizer and Polypropylene Fiber
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 12
Abstract
Stabilization methods have been widely used to enhance the strength properties of sand to meet the demands of geotechnical engineering. In this paper, a mixture of organic polymer stabilizer (OPS) and polypropylene fiber (PF) was used as the soil stabilizer to reinforce sand. Laboratory tests were used to study the strength properties of the reinforced sand. Mixtures with different proportions of 1%, 2%, 3%, and 4% OPS and 0.2%, 0.4%, 0.6%, and 0.8% PF were designed for these tests. The mechanism of incorporating reinforcement was studied by images from a scanning electron microscope (SEM). The test results revealed that the strength properties of sand specimens reinforced with a mixture of OPS and PF improved strongly. The addition of OPS-PF provided great enwrapping and bonding ability to keep the sand structure stable. The reinforcements imparted by a mixture of organic polymer and fiber can be chosen as an effective technique to enhance the strength of sand for its efficient engineering application.
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Acknowledgments
This paper was financially supported by the National Natural Science Foundation of China (Grant No. 41472241), Water Conservancy Science and Technology Project of Jiangsu Province, China (Grant No. 2017010), and Fundamental Research Funds for the Central Universities (Grant No. 2016B05914). The authors gratefully acknowledge Dr. Changqing Qi of the School of Earth Sciences and Engineering, Hohai University, China, for his contribution to the laboratory tests.
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Published In
Journal of Materials in Civil Engineering
Volume 30 • Issue 12 • December 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Oct 13, 2017
Accepted: Jun 18, 2018
Published online: Oct 4, 2018
Published in print: Dec 1, 2018
Discussion open until: Mar 4, 2019
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