pH attenuation by soils underlying recycled concrete aggregate road base
| Autor: | Nautasha Gupta, Matthew Kluge, Timothy G. Townsend, Christina M. Finizio, Chad J. Spreadbury, Steven J. Laux, Fernando D. Oliveira, Paul A. Chadik |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Economics and Econometrics Aggregate (composite) Base (chemistry) Carbonation 0211 other engineering and technologies Environmental engineering 02 engineering and technology 010501 environmental sciences 01 natural sciences Galvanization Corrosion symbols.namesake chemistry Soil water symbols Environmental science Organic matter 021108 energy Leachate Waste Management and Disposal 0105 earth and related environmental sciences |
| Zdroj: | Resources, Conservation and Recycling. 161:104987 |
| ISSN: | 0921-3449 |
| Popis: | Recycled concrete aggregate (RCA) is widely used as a replacement for natural aggregates in road base construction worldwide. Still, there are concerns that the high pH of RCA leachate may cause accelerated corrosion of metallic-coated (aluminum or galvanized) steel culverts placed in the underlying soil. Carbonation from CO2 produced in the soil by organic matter (OM) has been considered as a potential mechanism to attenuate RCA leachate pH to below aggressive conditions (pH |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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