Preparation and Optimization of a Novel Dust Suppressant for Construction Sites
Publication: Journal of Materials in Civil Engineering
Volume 29, Issue 8
Abstract
To reduce the dust pollution caused by the construction industry, calcium magnesium acetate (CMC), and glycerin as the primary raw materials, sodium dodecyl benzene sulfonate (SDBS) as the surfactant, and sodium hydroxide (NaOH) as the initiator were used to produce construction-site dust suppressant. This study focused on the preparation conditions of this dust suppressant and the dust-suppression effects of different dust-suppressant spraying methods. Tests of dust suppression derived from 1 h of reaction time, 70°C of reaction temperature, and 0.3 g of initiator dosage showed superior performance. The dust suppressant viscosity, hardness, antiwind erosion, and water retention capacity of the consolidated soil were improved greatly under this condition. Moreover, in experiments using different spraying methods, the method of spraying the dust suppressant instantly after water spraying worked best; the water-saving efficiency was increased by up to 92.62%, and the economic cost was reduced by 55.1% compared to the water-spraying method. This research can provide effective technical support for dust-suppression operations at construction sites.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant No. 21276177).
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 29 • Issue 8 • August 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Aug 25, 2016
Accepted: Dec 1, 2016
Published online: Mar 30, 2017
Published in print: Aug 1, 2017
Discussion open until: Aug 30, 2017
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