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https://hdl.handle.net/1822/21819
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Campo DC | Valor | Idioma |
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dc.contributor.author | Cristelo, Nuno | - |
dc.contributor.author | Glendinning, Stephanie | - |
dc.contributor.author | Miranda, Tiago F. S. | - |
dc.contributor.author | Oliveira, Daniel V. | - |
dc.contributor.author | Silva, Rui André Martins | - |
dc.date.accessioned | 2012-12-19T18:34:42Z | - |
dc.date.available | 2012-12-19T18:34:42Z | - |
dc.date.issued | 2012-11 | - |
dc.identifier.issn | 0950-0618 | por |
dc.identifier.uri | https://hdl.handle.net/1822/21819 | - |
dc.description.abstract | This paper studies the effectiveness of alkaline activation of low-calcium fly ash on the improvement of residual granitic soils to be used on rammed-earth construction. Different liquid:solid ratios, alkali concentrations and Na2O : ash ratios were tested. Effect of calcium hidroxide, sodium chloride and concrete superplasticiser is also reported. Compressive strength up to 7 days at 60ºC was determined. Results show that, in terms of mechanical strength, there is an optimum value for the activator:solids ratio and the alkali concentration, and that a decrease in the Na2O:ash ratio results in strength increase. No improvement was observed with the sodium chloride or the superplasticiser, while the calcium produced only a short term increase in strength. SEM/EDS analysis were used to analyse microstructural development, showing that strength is fairly related to the Si:Al and Na:Si ratios. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | openAccess | por |
dc.subject | Soil stabilisation | por |
dc.subject | Alkaline activation | por |
dc.subject | Fly ash | por |
dc.subject | Rammed earth | por |
dc.title | Soil stabilisation using alkaline activation of fly ash for self-compacting rammed earth construction | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.conbuildmat.2012.06.037 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 727 | por |
oaire.citationEndPage | 735 | por |
oaire.citationTitle | Construction and Building Materials | por |
oaire.citationVolume | 36 | por |
dc.identifier.doi | 10.1016/j.conbuildmat.2012.06.037 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Construction and Building Materials | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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2012.Soil stabilisation using alkaline activation of fly ash for self-compacting rammed earth construction.pdf | Artigo | 853,83 kB | Adobe PDF | Ver/Abrir |