Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based Composites
Biomass fly ash is a growing challenge for combustion by-product (CBP) management. This research was conducted to investigate the influence of activation by sieving through a 63 µm sieve and a 125 µm sieve on fresh and hardened cement mortar properties. Sieving increased the CaO content by 9.3 perce...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/3/1659 |
| _version_ | 1797625129517187072 |
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| author | Jakub Popławski Małgorzata Lelusz |
| author_facet | Jakub Popławski Małgorzata Lelusz |
| author_sort | Jakub Popławski |
| collection | DOAJ |
| description | Biomass fly ash is a growing challenge for combustion by-product (CBP) management. This research was conducted to investigate the influence of activation by sieving through a 63 µm sieve and a 125 µm sieve on fresh and hardened cement mortar properties. Sieving increased the CaO content by 9.3 percentage points (p.p.) in the oxide composition of the fly ash. The 28-day Strength Activity Indices increased by 24.9 p.p. A 25% replacement rate of cement with fly ash sieved with a 63 µm sieve increased the 2-day compressive strength of mortars by 24% when compared with untreated fly ash. The 90-day compressive strength results of cement mortars with a 15% replacement rate of cement with fly ash sieved with a 63 µm sieve were similar to the control specimen results. The utilization rate of biomass fly ash can be increased to 15% of binder mass without the detrimental effect of the mechanical properties of cement mortar. SEM and TG analyses showed that activated biomass fly ash promoted the growth of the C-S-H phase and ettringite. |
| first_indexed | 2024-03-11T09:52:25Z |
| format | Article |
| id | doaj.art-c2f4727df36346a892082fbc7a1a51b9 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:52:25Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-c2f4727df36346a892082fbc7a1a51b92023-11-16T16:08:38ZengMDPI AGApplied Sciences2076-34172023-01-01133165910.3390/app13031659Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based CompositesJakub Popławski0Małgorzata Lelusz1Faculty of Civil and Environmental Sciences, Bialystok University of Technology, ul. Wiejska 45e, 15-351 Białystok, PolandFaculty of Civil and Environmental Sciences, Bialystok University of Technology, ul. Wiejska 45e, 15-351 Białystok, PolandBiomass fly ash is a growing challenge for combustion by-product (CBP) management. This research was conducted to investigate the influence of activation by sieving through a 63 µm sieve and a 125 µm sieve on fresh and hardened cement mortar properties. Sieving increased the CaO content by 9.3 percentage points (p.p.) in the oxide composition of the fly ash. The 28-day Strength Activity Indices increased by 24.9 p.p. A 25% replacement rate of cement with fly ash sieved with a 63 µm sieve increased the 2-day compressive strength of mortars by 24% when compared with untreated fly ash. The 90-day compressive strength results of cement mortars with a 15% replacement rate of cement with fly ash sieved with a 63 µm sieve were similar to the control specimen results. The utilization rate of biomass fly ash can be increased to 15% of binder mass without the detrimental effect of the mechanical properties of cement mortar. SEM and TG analyses showed that activated biomass fly ash promoted the growth of the C-S-H phase and ettringite.https://www.mdpi.com/2076-3417/13/3/1659fly ashcement mortarsactivationsievingbiomass |
| spellingShingle | Jakub Popławski Małgorzata Lelusz Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based Composites Applied Sciences fly ash cement mortars activation sieving biomass |
| title | Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based Composites |
| title_full | Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based Composites |
| title_fullStr | Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based Composites |
| title_full_unstemmed | Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based Composites |
| title_short | Assessment of Sieving as a Mean to Increase Utilization Rate of Biomass Fly Ash in Cement-Based Composites |
| title_sort | assessment of sieving as a mean to increase utilization rate of biomass fly ash in cement based composites |
| topic | fly ash cement mortars activation sieving biomass |
| url | https://www.mdpi.com/2076-3417/13/3/1659 |
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