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Performance Evaluation and Field Application of Porous Vegetation Concrete Made with By-Product Materials for Ecological Restoration Projects

1
Research Institute of Technology, Nature and Environment Co. Ltd, 116-28 Boheung-1Gil, Kongju 325-33, Korea
2
Department of Rural Construction Engineering, Koungju National University, 54 Daehak Street, Yesan 340-702, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Vincenzo Torretta
Sustainability 2016, 8(4), 294; https://doi.org/10.3390/su8040294
Received: 8 March 2016 / Revised: 15 March 2016 / Accepted: 18 March 2016 / Published: 23 March 2016
(This article belongs to the Section Environmental Sustainability and Applications)
The purpose of this study was to evaluate the performance of porous vegetation concrete block made from blast furnace slag cement containing industrial by-products such as blast furnace slag aggregate and powder. The blocks were tested for void ratio, compressive strength and freeze-thaw resistance to determine the optimal mixing ratio for the porous vegetation block. An economic analysis of the mixing ratio showed that the economic efficiency increased when blast furnace slag aggregate and cement were used. Porous vegetation concrete blocks for river applications were designed and produced. Hydraulic safety, heavy metal elution and vegetation tests were completed after the blocks were applied in the field. The measured tractive force ranged between 7.0 kg/m2 for fascine revetment (vegetation revetment) and 16.0 kg/m2 for stone pitching (hard revetment), which ensured sufficient hydraulic stability in the field. Plant growth was measured after the porous vegetation concrete block was placed in the field. Seeds began to sprout one week after seeding; after six weeks, the plant length exceeded 300 mm. The average coverage ratio reached as high as 90% after six weeks of vegetation. These results clearly indicated that the porous vegetation concrete block was suitable for environmental restoration projects. View Full-Text
Keywords: by-product materials; economic analysis; field application; hydraulic stability; laboratory test; latex polymer; porous vegetation concrete block by-product materials; economic analysis; field application; hydraulic stability; laboratory test; latex polymer; porous vegetation concrete block
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Kim, H.-H.; Park, C.-G. Performance Evaluation and Field Application of Porous Vegetation Concrete Made with By-Product Materials for Ecological Restoration Projects. Sustainability 2016, 8, 294.

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