Microcapsule Encapsulation of Chlorpyrifos and Its Application in Termite-Resistant Concrete
Publication: Journal of Materials in Civil Engineering
Volume 33, Issue 12
Abstract
Termites are major pests that can secrete formic acid to damage concrete structures. To solve this engineering problem, termite-resistant concrete was prepared by incorporating chlorpyrifos microcapsules. The results showed that the chlorpyrifos microcapsules could resist the alkaline environment and heat from cement hydration. The addition of chlorpyrifos microcapsules had little effect on the hydration of the cement paste, and the microcapsules could be effectively stored in the cement paste. In addition, chlorpyrifos microcapsules changed the workability, and reduced the compressive strength of concrete, though the concrete met the engineering requirements.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This project is funded by the National Key R&D Program of China (2018YFC1801704), and the National Natural Science Foundation of China (51668021/52008256).
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Received: Feb 19, 2021
Accepted: Apr 21, 2021
Published online: Oct 1, 2021
Published in print: Dec 1, 2021
Discussion open until: Mar 1, 2022
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