Pozzolanic Activity of Sewage Sludge Ash with Respect to its Calcination and Chemical Composition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312331" target="_blank" >RIV/68407700:21110/17:00312331 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5593/sgem2017/62/S26.045" target="_blank" >http://dx.doi.org/10.5593/sgem2017/62/S26.045</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2017/62/S26.045" target="_blank" >10.5593/sgem2017/62/S26.045</a>
Alternative languages
Result language
angličtina
Original language name
Pozzolanic Activity of Sewage Sludge Ash with Respect to its Calcination and Chemical Composition
Original language description
The handling and disposal of voluminous sludge produced from water treatment plants poses difficulty to environmental scientist and engineers. In fact, its environmental friendly management and disposal is challenging task and requires careful consideration. In this study, sewage sludge ashes were examined as potentially supplementary cementitious materials. The raw sewage sludge was provided by two different municipal waste water treatment plants, coming from Poland and Greece respectively. The calcination of preliminary dried sewage sludge was done at 700 °C in order to remove organic matter that would negatively affect setting and hardening of cement blends. For both raw and thermally treated materials, chemical composition was studied using XRF. The morphology of sewage sludge ash was characterized by SEM and mineralogical composition was evaluated by XRD analyses. Calcination process was monitored by STA. The pozzolanic activity was analyzed by Frattini test and measurement of strength activity index of cement pastes, where sewage sludge substituted 10 % of Portland cement by mass. The both analyzed ashes contained silica, alumina, calcium and iron oxides in significant amounts. The high amorphous content resulted in a good pozzolanic activity and high strength activity index.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
17th International Multidisciplinary Scientific Geoconference SGEM 2017
ISBN
978-619-7408-13-3
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
351-358
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 27, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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