Experimental investigations on the structural behaviour of reinforced geopolymer beams produced from recycled construction materials
| Autor: | Şaban Akduman, Mustafa Şahmaran, Alper Aldemir, Gürkan Yıldırım, Hanady Almahmood, Oznur Kocaer, Ashraf F. Ashour |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Cement
Brick Aggregate (composite) Materials science business.industry Metallurgy 0211 other engineering and technologies 02 engineering and technology Building and Construction Masonry law.invention Geopolymer Portland cement Demolition waste Mechanics of Materials law 021105 building & construction Architecture Demolition 021108 energy Safety Risk Reliability and Quality business Civil and Structural Engineering |
| Zdroj: | Journal of Building Engineering |
| ISSN: | 2352-7102 |
| DOI: | 10.1016/j.jobe.2021.102776 |
| Popis: | Concrete requires a vast amount of aggregate and cement production . Although there are some efforts in the literature to reduce the amount of Portland cement in the concrete mixture to lessen the greenhouse gas release , a limited number of studies were conducted to investigate the possibility of using this geopolymer mixtures to serve as a structural component. Therefore, this study firstly aimed to produce geopolymer concrete from construction and demolition waste-based precursors, including masonry units (red clay brick, roof tile, hollow brick, etc.) and glass. In addition, recycled aggregates produced from the concrete waste portion of the CDW were used to obtain 100% recycled construction material on the scale of the binder and aggregate phase. Then, this study investigated the possible use of this proposed geopolymer concrete to produce structural components that perform similar to conventional concrete. Therefore, the structural properties of reinforced geopolymer concrete beams produced from the recycled construction demolition wastes were evaluated in this study by conducting laboratory experiments. To this end, bending tests were performed on reinforced conventional concrete beam specimens and reinforced geopolymer concrete beam specimens. The test observations clearly showed that construction demolition waste could be recycled to produce new constructional components, considering its advantage of promoted sustainability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|