Publication: Mechanical properties, microstructure and drying shrinkage of hybrid fly ash-basalt fiber geopolymer paste
| dc.contributor.author | Wonsiri Punurai | en_US |
| dc.contributor.author | Wunchock Kroehong | en_US |
| dc.contributor.author | Adam Saptamongkol | en_US |
| dc.contributor.author | Prinya Chindaprasirt | en_US |
| dc.contributor.other | Mahidol University. Faculty of Engineering. Department of Civil and Environmental Engineering | en_US |
| dc.contributor.other | Rajamangala University of Technology Tawan-ok. Faculty of Engineering and Architecture. Uthenthawai Campus. Department of Civil Engineering | en_US |
| dc.contributor.other | Khon Kaen University. Faculty of Engineering. Sustainable Infrastructure Research and Development Center | en_US |
| dc.date.accessioned | 2019-08-23T11:05:04Z | |
| dc.date.available | 2019-08-23T11:05:04Z | |
| dc.date.issued | 2018-10-20 | en_US |
| dc.description.abstract | © 2018 Elsevier Ltd This paper evaluates the mechanical properties, microstructure and drying shrinkage of hybrid fly ash-basalt fiber geopolymer paste. Fly ash was replaced with basalt fiber at the replacement levels of 0, 10, 20, 30, 40 and 100%. Na2SiO3/NaOH ratio of 1.0 and liquid to binder (L/B) ratio of 0.60 were used for making geopolymer pastes. Setting time, strength and drying shrinkage of geopolymer pastes were tested. The results showed that the replacement of fly ash with basalt fibers in geopolymer pastes resulted in increased setting times and strength and reduced drying shrinkage of paste. The basalt fiber acted as small reinforcing fibers and enhanced the development of CSH, CASH and NASH which further enhanced the properties of paste. In addition, the total porosity and critical pore size of fly ash geopolymer paste reduce with increasing replacement content in fly ash which makes the paste more homogeneous and dense compared to fly ash geopolymer. | en_US |
| dc.description.sponsorship | Faculty of Engineering and Architecture, Uthenthawai Campus, Rajamangala University of Technology, Tawan-ok / Thailand Research Fund (TRF) for financial support under the New Researcher Scholar, Grant No. TRG 5880064. / Faculty of Engineering, Mahidol University | |
| dc.identifier.citation | Construction and Building Materials. Vol.186, (2018), 62-70 | en_US |
| dc.identifier.doi | 10.1016/j.conbuildmat.2018.07.115 | en_US |
| dc.identifier.issn | 09500618 | en_US |
| dc.identifier.other | 2-s2.0-85050151284 | en_US |
| dc.identifier.uri | https://repository.li.mahidol.ac.th/handle/20.500.14594/45787 | |
| dc.rights | Mahidol University | en_US |
| dc.rights.holder | SCOPUS/ Elsevier | en_US |
| dc.source.uri | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85050151284&origin=inward | en_US |
| dc.subject | Engineering | en_US |
| dc.subject | Materials Science | en_US |
| dc.title | Mechanical properties, microstructure and drying shrinkage of hybrid fly ash-basalt fiber geopolymer paste | en_US |
| dc.type | Article | en_US |
| dspace.entity.type | Publication | |
| mods.location.url | https://www.sciencedirect.com/science/article/pii/S0950061818317872 | |
| mu.datasource.scopus | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85050151284&origin=inward | en_US |