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Evaluation of ash pozzolanic activity by means of the strength activity index test, frattini test and DTA/TG analysis [Elektronski vir]Dolenec, Sabina ; Ducman, VilmaThe pozzolanic activity of five different types of ash was studied using various direct and indirect methods. In addition to strength activity index (SAI) determination and the Frattini test, ash ... pozzolanicity was assessed via differential thermal and thermogravimetric analyses (DTA/TG) after curing for 7, 28 and 90 days. The results showed that, due to their respective mineralogical, chemical and physical characteristics, the ashes exhibited different levels of pozzolanic activity in terms of the amount of lime with which they could chemically bind, as well as reaction kinetics. Although SAI and Frattini test results were not in agreement in the case of some of the ashes, DTA/TG analysis revealed that a certain amount of portlandite was consumed, thus confirming the occurrence of a pozzolanic reaction. The results also showed that ashes with higher amounts of reactive SiO2 were more reactive, while those with higher BET surface areas displayed a faster pozzolanic reaction rate.Source: Tehnički vjesnik [Elektronski vir]. - ISSN 1848-6339 (Vol. 25, no. 6, Dec. 2018, str. 1746-1752)Type of material - e-article ; adult, seriousPublish date - 2018Language - englishCOBISS.SI-ID - 2416487
Author
Dolenec, Sabina |
Ducman, Vilma
Topics
biomass ash |
DTA/TG |
fly ash |
Frattini test |
pozzolanic activity |
SAI |
lesni pepel |
DTA/TG |
elektrofiltrski pepel |
Frattinijev test |
pucolanska aktivnost |
SAI
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Author | Dolenec, Sabina ; Ducman, Vilma |
Title | Evaluation of ash pozzolanic activity by means of the strength activity index test, frattini test and DTA/TG analysis [Elektronski vir] |
Publication date | 2018-12-16 |
COBISS.SI-ID | 2416487 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Gradbeni objekti in materiali | P2-0273-2015 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Dolenec, Sabina | 27655 |
Ducman, Vilma | 11292 |
Source: Personal bibliographies
and: SICRIS
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