A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Use of incinerator bottom ash in concrete
The aim of the present work was to show if municipal solid waste incinerator bottom ash could be an alternative aggregate for the production of building concrete presenting a characteristic 28-day compressive strength of 25 MPa. The aggregates passing the 20-mm sieve and retained on the 4-mm sieve were considered for investigation. They showed lower density, higher water absorption, and lower strength than natural gravel. They could be considered as average quality aggregates for use in concrete. When directly introduced in concrete, they led to swelling and cracking of specimens, due to the reaction between cement and metallic aluminium. Therefore, a treatment by sodium hydroxide was proposed to avoid such degradation, which made possible the partial replacement (up to 50 %) of gravel in concrete without affecting the durability.
Use of incinerator bottom ash in concrete
The aim of the present work was to show if municipal solid waste incinerator bottom ash could be an alternative aggregate for the production of building concrete presenting a characteristic 28-day compressive strength of 25 MPa. The aggregates passing the 20-mm sieve and retained on the 4-mm sieve were considered for investigation. They showed lower density, higher water absorption, and lower strength than natural gravel. They could be considered as average quality aggregates for use in concrete. When directly introduced in concrete, they led to swelling and cracking of specimens, due to the reaction between cement and metallic aluminium. Therefore, a treatment by sodium hydroxide was proposed to avoid such degradation, which made possible the partial replacement (up to 50 %) of gravel in concrete without affecting the durability.
Use of incinerator bottom ash in concrete
Einsatz der Bodenasche von Müllverbrennungsanlagen in Beton
Pera, J. (author) / Coutaz, L. (author) / Ambroise, J. (author) / Chababbet, M. (author)
Cement and Concrete Research ; 27 ; 1-5
1997
5 Seiten, 4 Tabellen, 7 Quellen
Article (Journal)
English
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