Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom Ash
With the objective of establishing a viable alternative to the use of cement, the main objective of this study is to verify the possibility of using municipal solid waste incinerator bottom ash (MIBA) as a partial cement replacement, thereby reducing the environmental impact associated with the use...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-07-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/11/14/6396 |
| _version_ | 1797527645687119872 |
|---|---|
| author | Joel R. Simões Pedro R. da Silva Rui V. Silva |
| author_facet | Joel R. Simões Pedro R. da Silva Rui V. Silva |
| author_sort | Joel R. Simões |
| collection | DOAJ |
| description | With the objective of establishing a viable alternative to the use of cement, the main objective of this study is to verify the possibility of using municipal solid waste incinerator bottom ash (MIBA) as a partial cement replacement, thereby reducing the environmental impact associated with the use of concrete as a building material. To this end, self-compacting concrete (SCC) binary mixes of cement and MIBA were evaluated in their fresh and hardened state (i.e., self-compactability, mechanical and durability related performance). Four SCC mixes were produced to cover a wide range of replacement levels of cement with MIBA, namely: 20%, 30%, 40% and 50%. A fifth SCC mix, without MIBA, was produced with 30% fly ash to carry out a comparative analysis with composites with well-established performance. The results showed that the use of bottom ash from municipal solid waste incinerators caused an overall decline in the performance of self-compacting concrete. Apart from the smaller number of reactive phases in the bottom ash when compared with fly ash, which led to a slower rate of strength development, the decline was also caused by the increased porosity from the oxidation of aluminium particles. Nevertheless, the results showed promising indicators regarding the durability of mixes with 20% MIBA, with values very similar to those of reference concrete. |
| first_indexed | 2024-03-10T09:46:41Z |
| format | Article |
| id | doaj.art-28d796783bd24bde9e29216dbad0478c |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T09:46:41Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-28d796783bd24bde9e29216dbad0478c2023-11-22T03:09:02ZengMDPI AGApplied Sciences2076-34172021-07-011114639610.3390/app11146396Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom AshJoel R. Simões0Pedro R. da Silva1Rui V. Silva2Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, PortugalInstituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, PortugalCERIS, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalWith the objective of establishing a viable alternative to the use of cement, the main objective of this study is to verify the possibility of using municipal solid waste incinerator bottom ash (MIBA) as a partial cement replacement, thereby reducing the environmental impact associated with the use of concrete as a building material. To this end, self-compacting concrete (SCC) binary mixes of cement and MIBA were evaluated in their fresh and hardened state (i.e., self-compactability, mechanical and durability related performance). Four SCC mixes were produced to cover a wide range of replacement levels of cement with MIBA, namely: 20%, 30%, 40% and 50%. A fifth SCC mix, without MIBA, was produced with 30% fly ash to carry out a comparative analysis with composites with well-established performance. The results showed that the use of bottom ash from municipal solid waste incinerators caused an overall decline in the performance of self-compacting concrete. Apart from the smaller number of reactive phases in the bottom ash when compared with fly ash, which led to a slower rate of strength development, the decline was also caused by the increased porosity from the oxidation of aluminium particles. Nevertheless, the results showed promising indicators regarding the durability of mixes with 20% MIBA, with values very similar to those of reference concrete.https://www.mdpi.com/2076-3417/11/14/6396self-compacting concretemunicipal solid wasteincinerationbottom ashfresh propertiesmechanical properties |
| spellingShingle | Joel R. Simões Pedro R. da Silva Rui V. Silva Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom Ash Applied Sciences self-compacting concrete municipal solid waste incineration bottom ash fresh properties mechanical properties |
| title | Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom Ash |
| title_full | Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom Ash |
| title_fullStr | Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom Ash |
| title_full_unstemmed | Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom Ash |
| title_short | Binary Mixes of Self-Compacting Concrete with Municipal Solid Waste Incinerator Bottom Ash |
| title_sort | binary mixes of self compacting concrete with municipal solid waste incinerator bottom ash |
| topic | self-compacting concrete municipal solid waste incineration bottom ash fresh properties mechanical properties |
| url | https://www.mdpi.com/2076-3417/11/14/6396 |
| work_keys_str_mv | AT joelrsimoes binarymixesofselfcompactingconcretewithmunicipalsolidwasteincineratorbottomash AT pedrordasilva binarymixesofselfcompactingconcretewithmunicipalsolidwasteincineratorbottomash AT ruivsilva binarymixesofselfcompactingconcretewithmunicipalsolidwasteincineratorbottomash |