Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash
Owing to the increasing threat to environment due to the emission of greenhouse gases from cement industry globally, various promising solutions has been introduced in the past decades. The development of geoplymer concrete (GPC) is one of the contribution by the researches towards ecofriendly and s...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-02-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024023624 |
| _version_ | 1827322188605161472 |
|---|---|
| author | Muhammad Hassan Ashfaq Muhammad Burhan Sharif Muhammad Irfan-ul-Hassan Umbreen us Sahar Usman Akmal Abdullah Mohamed |
| author_facet | Muhammad Hassan Ashfaq Muhammad Burhan Sharif Muhammad Irfan-ul-Hassan Umbreen us Sahar Usman Akmal Abdullah Mohamed |
| author_sort | Muhammad Hassan Ashfaq |
| collection | DOAJ |
| description | Owing to the increasing threat to environment due to the emission of greenhouse gases from cement industry globally, various promising solutions has been introduced in the past decades. The development of geoplymer concrete (GPC) is one of the contribution by the researches towards ecofriendly and sustainable construction. In this research, geopolymer concrete (GPC) is optimized by adding fixed amount of fly Ash (FA) and alkali activator to fine aggregate ratio as 0.5 with varying Molarity from 12 M to 16 M and Na2SiO3/NaOH ratio from 1.5 to 2.5. Physical and mechanical properties along with effect of heat and ambient curing conditions were investigated at various ages. The optimized mixture of fly ash based geopolymer concrete was then up scaled by blending with locally available Metakaolin (MK) with different dosages (i.e., 10%, 20%, 30%, 40%). The aim of the study is to identify the binary effect of FA and MK on overall performance of geopolymer concrete. Results showed that 30% FA-MK based GPC depicted 21%, 19% and 26% more compressive strength, split tensile strength and flexural strength respectively than Fly Ash based GPC alone at heat cured condition. This can be explained mainly due to two facts namely binary action of metakaolin that enhances compaction of GPC and pozzolanic activity of MK that expedite geopolymeric strength causing phases. The results were further verified by Modified Chapelle test and FTIR. Morphology of the developed GPC is also examined from SEM images. The work is an effort to utilize the fly ash produced by coal power plants to effectively address UN sustainable development goal related to sustainable cities and communities. |
| first_indexed | 2024-03-08T00:01:07Z |
| format | Article |
| id | doaj.art-bd3868d74aeb4b15a893c6357a19f1d8 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-25T01:20:41Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-bd3868d74aeb4b15a893c6357a19f1d82024-03-09T09:27:59ZengElsevierHeliyon2405-84402024-02-01104e26331Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ashMuhammad Hassan Ashfaq0Muhammad Burhan Sharif1Muhammad Irfan-ul-Hassan2Umbreen us Sahar3Usman Akmal4Abdullah Mohamed5Irrigation Department, Government of the Punjab, Library Road, Lahore, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Lahore, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Lahore, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Lahore, PakistanDepartment of Civil Engineering, University of Engineering and Technology, Lahore, Pakistan; Corresponding author.Research Centre, Future University in Egypt, New Cairo, 11835, EgyptOwing to the increasing threat to environment due to the emission of greenhouse gases from cement industry globally, various promising solutions has been introduced in the past decades. The development of geoplymer concrete (GPC) is one of the contribution by the researches towards ecofriendly and sustainable construction. In this research, geopolymer concrete (GPC) is optimized by adding fixed amount of fly Ash (FA) and alkali activator to fine aggregate ratio as 0.5 with varying Molarity from 12 M to 16 M and Na2SiO3/NaOH ratio from 1.5 to 2.5. Physical and mechanical properties along with effect of heat and ambient curing conditions were investigated at various ages. The optimized mixture of fly ash based geopolymer concrete was then up scaled by blending with locally available Metakaolin (MK) with different dosages (i.e., 10%, 20%, 30%, 40%). The aim of the study is to identify the binary effect of FA and MK on overall performance of geopolymer concrete. Results showed that 30% FA-MK based GPC depicted 21%, 19% and 26% more compressive strength, split tensile strength and flexural strength respectively than Fly Ash based GPC alone at heat cured condition. This can be explained mainly due to two facts namely binary action of metakaolin that enhances compaction of GPC and pozzolanic activity of MK that expedite geopolymeric strength causing phases. The results were further verified by Modified Chapelle test and FTIR. Morphology of the developed GPC is also examined from SEM images. The work is an effort to utilize the fly ash produced by coal power plants to effectively address UN sustainable development goal related to sustainable cities and communities.http://www.sciencedirect.com/science/article/pii/S2405844024023624Geoplymer concreteFly ashMetakaolinMechanical propertiesDurability properties |
| spellingShingle | Muhammad Hassan Ashfaq Muhammad Burhan Sharif Muhammad Irfan-ul-Hassan Umbreen us Sahar Usman Akmal Abdullah Mohamed Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash Heliyon Geoplymer concrete Fly ash Metakaolin Mechanical properties Durability properties |
| title | Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash |
| title_full | Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash |
| title_fullStr | Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash |
| title_full_unstemmed | Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash |
| title_short | Up-scaling of fly ash-based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash |
| title_sort | up scaling of fly ash based geopolymer concrete to investigate the binary effect of locally available metakaolin with fly ash |
| topic | Geoplymer concrete Fly ash Metakaolin Mechanical properties Durability properties |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024023624 |
| work_keys_str_mv | AT muhammadhassanashfaq upscalingofflyashbasedgeopolymerconcretetoinvestigatethebinaryeffectoflocallyavailablemetakaolinwithflyash AT muhammadburhansharif upscalingofflyashbasedgeopolymerconcretetoinvestigatethebinaryeffectoflocallyavailablemetakaolinwithflyash AT muhammadirfanulhassan upscalingofflyashbasedgeopolymerconcretetoinvestigatethebinaryeffectoflocallyavailablemetakaolinwithflyash AT umbreenussahar upscalingofflyashbasedgeopolymerconcretetoinvestigatethebinaryeffectoflocallyavailablemetakaolinwithflyash AT usmanakmal upscalingofflyashbasedgeopolymerconcretetoinvestigatethebinaryeffectoflocallyavailablemetakaolinwithflyash AT abdullahmohamed upscalingofflyashbasedgeopolymerconcretetoinvestigatethebinaryeffectoflocallyavailablemetakaolinwithflyash |