Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Maxim Kovtun"'
Autor:
Oscar Tarique, Maxim Kovtun
Publikováno v:
Advances in Cement Research. 34:458-471
Alkali-activated cements utilising fly ash can be a low-carbon alternative to Portland cement. However, fly ash alkali-activated cements require curing at elevated temperature and have cost plus environmental implications owing to the use of strong a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e48ee517188e1d889f29e8c5b3e9fa71
https://doi.org/10.1680/jadcr.21.00144
https://doi.org/10.1680/jadcr.21.00144
Autor:
Mateusz Ziolkowski, Maxim Kovtun
Publikováno v:
Construction and Building Materials. 176:452-461
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-activ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b09f9582c4f08c5b84e7bc705101e6dd
https://doi.org/10.1016/j.conbuildmat.2018.05.041
https://doi.org/10.1016/j.conbuildmat.2018.05.041
Autor:
Mateusz Ziolkowski, Maxim Kovtun
Publikováno v:
Construction and Building Materials. 155:1050-1062
The utilisation of fly ash is a global concern. Under conditions of mass production and rapid turnover in automated plants, a reduction in the curing duration of alkali-activated fly ash based mixtures is sought-after. An alternative accelerated curi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8a5b68f5a7da2ca002d46904fcd3472
https://doi.org/10.1016/j.conbuildmat.2017.08.135
https://doi.org/10.1016/j.conbuildmat.2017.08.135
Publikováno v:
Journal of Cleaner Production. 133:220-227
Utilization of the fly ashes is a major problem in many developing countries and in South Africa only about 7% of the fly ash produced annually by coal-fired power stations, is being utilized. Although, fly ashes can be used as an alternative binder
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acc85ec73d0e21b9c7b83ac6603f71da
https://doi.org/10.1016/j.jclepro.2016.05.098
https://doi.org/10.1016/j.jclepro.2016.05.098
Publikováno v:
Advances in Cement Research. :1-10
This paper reports on core temperature development and initial shrinkage of fly ash cement pastes activated with sodium hydroxide solution at different concentrations during elevated-temperature curing at 60°C. The results indicate that a high sodiu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32c6c386fd143e0fa9aef57bb73d5505
https://doi.org/10.1680/jadcr.14.00079
https://doi.org/10.1680/jadcr.14.00079
Publikováno v:
Advances in Cement Research. 27:447-456
This paper reports on the results of an investigation into the possibility of producing dry powder alkali-activated slag cements as a ready-to-use product which can be packed in bags and mixed with water to produce a concrete. The cements were produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ead1f52d9f3380bce5a38bd003af10c
https://doi.org/10.1680/adcr.14.00078
https://doi.org/10.1680/adcr.14.00078
Publikováno v:
Magazine of Concrete Research. 67:897-905
Short- and long-term properties of alkali-activated fly ash concrete, namely, compressive, flexural and splitting tensile strengths, modulus of elasticity, Poisson ratio, early-age and drying shrinkage, creep and durability performance have been inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57b51b516b4e65dc5737329b487a2078
https://doi.org/10.1680/macr.14.00377
https://doi.org/10.1680/macr.14.00377
Publikováno v:
Cement and Concrete Research. 72:1-9
This paper presents results of a study on chemical acceleration of a neutral granulated blast-furnace slag activated using sodium carbonate. As strength development of alkali-activated slag cements containing neutral GBFS and sodium carbonate as acti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e27584af4b31292d5a1ab4f21ff9c1d4
https://doi.org/10.1016/j.cemconres.2015.02.014
https://doi.org/10.1016/j.cemconres.2015.02.014
Publikováno v:
Scopus-Elsevier
Journal of the South African Institution of Civil Engineering, Volume: 56, Issue: 3, Pages: 44-52, Published: OCT 2014
Journal of the South African Institution of Civil Engineering, Volume: 56, Issue: 3, Pages: 44-52, Published: OCT 2014
In this paper the effect of sodium oxide concentration, the water-to-binder-solids ratio, temperature, and the duration of elevated temperature curing on the compressive strength of alkali-activated fly ash cement pastes was investigated. Alkali conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::84abd84c21e37c33317f4728d297deef
http://www.scopus.com/inward/record.url?eid=2-s2.0-84908892471&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-84908892471&partnerID=MN8TOARS
