Development and characterization of lightweight aggregate recycled from construction and demolition waste mixed with other industrial by-products
| Autor: | Van Tuan Nguyen, Anette Mueller, Hung Phong Nguyen, Cong Thang Nguyen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Sustainable development
Aggregate (composite) Waste management business.industry Slag Building and Construction Brick and mortar Masonry Demolition waste Fly ash visual_art Sustainability visual_art.visual_art_medium Environmental science General Materials Science business Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 313:125472 |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2021.125472 |
| Popis: | The amount of construction and demolition waste and industrial by-products are increasingly high in Vietnam recently. The recycling of these wastes as new construction materials is an effective solution for sustainable development. This paper presents a method for the recycling of construction and demolition waste and other industrial by-products, such as fly ash and slag in Vietnam to produce lightweight aggregate . Experimental results show that masonry wastes including brick and mortar as well as fly ash are suitable materials for producing lightweight aggregates with a granule density of less than 1000 kg/m3 with the optimum sintering temperatures and the residence time in the range from 1220 °C to 1250 °C and, 6 to 9 min, respectively. These recycled lightweight aggregates can be used as valuable substitutes for natural aggregates to make lightweight concrete for new structures and therefore contribute to the construction industry's sustainability. |
| Databáze: | OpenAIRE |
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