Confined-direct electric curing of NaOH-activated fly ash based brick mixtures under free drainage conditions : Part 2. Confined-DEC versus oven curing
| dc.contributor.author | Ziolkowski, Mateusz | |
| dc.contributor.author | Kovtun, Maxim | |
| dc.contributor.email | max.kovtun@up.ac.za | en_ZA |
| dc.date.accessioned | 2018-05-29T06:21:11Z | |
| dc.date.issued | 2018-07 | |
| dc.description.abstract | A novel accelerated curing technique – confined-DEC (Direct Electric Curing) – was compared with oven curing. Microstructural investigations revealed that under free drainage conditions non-uniform curing conditions were induced within NaOH-activated fly ash based brick mixture during confined-DEC. Strength development of the outer-core (surface) regions of the mixture was impaired by diminished alkali content due to movement of pore solution, resulting in lower compressive strength at later ages compared to identical mixtures cured in an oven for 16 h. Nevertheless, confined-DEC is a promising technique for brick mass production as the requirements of several strength classes of the South African concrete masonry units’ standard SANS 1215:2008 were met in 7 min. | en_ZA |
| dc.description.department | Civil Engineering | en_ZA |
| dc.description.embargo | 2019-07-10 | |
| dc.description.librarian | hj2018 | en_ZA |
| dc.description.uri | http://www.elsevier.com/locate/conbuildmat | en_ZA |
| dc.identifier.citation | Ziolkowski, M. & Kovtun, M. 2018, 'Confined-direct electric curing of NaOH-activated fly ash based brick mixtures under free drainage conditions : Part 2. Confined-DEC versus oven curing', Construction and Building Materials, vol. 176, pp. 452-461. | en_ZA |
| dc.identifier.issn | 0950-0618 (print) | |
| dc.identifier.issn | 1879-0526 (online) | |
| dc.identifier.other | 10.1016/j.conbuildmat.2018.05.041 | |
| dc.identifier.uri | http://hdl.handle.net/2263/65047 | |
| dc.language.iso | en | en_ZA |
| dc.publisher | Elsevier | en_ZA |
| dc.rights | © 2018 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Construction and Building Materials, vol. 176, pp. 452-461, 2018. doi : 10.1016/j.conbuildmat.2018.05.041. | en_ZA |
| dc.subject | Alkali-activated | en_ZA |
| dc.subject | Fly ash | en_ZA |
| dc.subject | Confined-direct electric curing | en_ZA |
| dc.subject | Acceleration | en_ZA |
| dc.subject | Brick | en_ZA |
| dc.subject | Compressive strength | en_ZA |
| dc.subject | Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) | en_ZA |
| dc.subject | X-ray diffraction (XRD) | en_ZA |
| dc.subject | X-ray fluorescence spectroscopy (XRF) | en_ZA |
| dc.subject | Thermal gravimetric analyses (TGA) | en_ZA |
| dc.title | Confined-direct electric curing of NaOH-activated fly ash based brick mixtures under free drainage conditions : Part 2. Confined-DEC versus oven curing | en_ZA |
| dc.type | Postprint Article | en_ZA |