Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment
Fly ash bottom ash (FABA) with a ratio of 80% fly ash and 20% bottom ash can be included in concrete as an additive or replacement material. The FABA concrete needs to have good mechanical properties in aggressive environments such as acidic peatland to widen its application. In this study, a mix of...
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2023
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my.uniten.dspace-259442023-05-29T17:05:41Z Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment Olivia M. Anwary A. Wibisono G. Sitompul I.R. Supit S.W.M. Usman F. 35801471000 57330763600 6603555902 56352960300 55887493500 55812540000 Fly ash bottom ash (FABA) with a ratio of 80% fly ash and 20% bottom ash can be included in concrete as an additive or replacement material. The FABA concrete needs to have good mechanical properties in aggressive environments such as acidic peatland to widen its application. In this study, a mix of FABA, alkaline activator and Portland cement produced the FABA hybrid geopolymer concrete. Portland Composite Cement (PCC) was a control mixture. The concrete was mixed, cast and cured for 28 days before placed in peat water until 91 days. This study determines the compressive strength, tensile strength, flexural strength and shrinkage values of the immersed samples. Results show that the FABA-GP hybrid concrete has a stable compressive strength development after 28 days. However, the tensile strength of the FABA-GP dropped by 12.9% at 91 days, indicating a slow degradation in concrete. The flexural strength of FABA-GP was not affected due to a slight decrease at 91 days in peat water. The FABA-GP has a relatively higher shrinkage than the PCC concrete. Moreover, the mechanical properties of FABA-GP hybrid concrete suggest the material could be used as low to medium grade concrete in peatland. � 2021 Author(s). Final 2023-05-29T09:05:41Z 2023-05-29T09:05:41Z 2021 Conference Paper 10.1063/5.0072591 2-s2.0-85118958781 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118958781&doi=10.1063%2f5.0072591&partnerID=40&md5=07292bcd9be2b6e1face7f922850e7e7 https://irepository.uniten.edu.my/handle/123456789/25944 2447 30021 American Institute of Physics Inc. Scopus |
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Fly ash bottom ash (FABA) with a ratio of 80% fly ash and 20% bottom ash can be included in concrete as an additive or replacement material. The FABA concrete needs to have good mechanical properties in aggressive environments such as acidic peatland to widen its application. In this study, a mix of FABA, alkaline activator and Portland cement produced the FABA hybrid geopolymer concrete. Portland Composite Cement (PCC) was a control mixture. The concrete was mixed, cast and cured for 28 days before placed in peat water until 91 days. This study determines the compressive strength, tensile strength, flexural strength and shrinkage values of the immersed samples. Results show that the FABA-GP hybrid concrete has a stable compressive strength development after 28 days. However, the tensile strength of the FABA-GP dropped by 12.9% at 91 days, indicating a slow degradation in concrete. The flexural strength of FABA-GP was not affected due to a slight decrease at 91 days in peat water. The FABA-GP has a relatively higher shrinkage than the PCC concrete. Moreover, the mechanical properties of FABA-GP hybrid concrete suggest the material could be used as low to medium grade concrete in peatland. � 2021 Author(s). |
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35801471000 |
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35801471000 Olivia M. Anwary A. Wibisono G. Sitompul I.R. Supit S.W.M. Usman F. |
| format |
Conference Paper |
| author |
Olivia M. Anwary A. Wibisono G. Sitompul I.R. Supit S.W.M. Usman F. |
| spellingShingle |
Olivia M. Anwary A. Wibisono G. Sitompul I.R. Supit S.W.M. Usman F. Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment |
| author_sort |
Olivia M. |
| title |
Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment |
| title_short |
Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment |
| title_full |
Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment |
| title_fullStr |
Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment |
| title_full_unstemmed |
Evaluating mechanical properties of fly ash bottom ash (FABA) geopolymer hybrid concrete in peat environment |
| title_sort |
evaluating mechanical properties of fly ash bottom ash (faba) geopolymer hybrid concrete in peat environment |
| publisher |
American Institute of Physics Inc. |
| publishDate |
2023 |
| _version_ |
1806424473266552832 |
| score |
13.222552 |