Wood Chips Ash as Pozzolana Active Admixture for Mortars
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322203" target="_blank" >RIV/68407700:21110/18:00322203 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5593/sgem2018/6.3/S26.060" target="_blank" >http://dx.doi.org/10.5593/sgem2018/6.3/S26.060</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2018/6.3/S26.060" target="_blank" >10.5593/sgem2018/6.3/S26.060</a>
Alternative languages
Result language
angličtina
Original language name
Wood Chips Ash as Pozzolana Active Admixture for Mortars
Original language description
In this paper we focused at the analysis of the possible use of biomass ash coming from wood chips combustion as pozzolanic admixture in mortar mix design. Biomass ash was characterized by XRF, SEM, and EDS analyses. The pozzolanic activity of the ash was tested using a modified Chapelle test. As the examined ash was pozzolana active, it was used as partial PC replacement in the composition of cement-based mortars. The PC replacing ratio was 10 and 15 wt. %. For the hardened mortar samples, bulk density, matrix density and total open porosity were accessed. The pozzolanic activity of biomass ash was verified also using the measurement of mortars mechanical parameters and calculation of strength activity index. All these measurements were performed for 28 and 180 days hardened samples. Mechanical strength data showed, an application of ash coming from wood chips combustion in the amount up to 15 mass % of cement provided sufficient mechanical resistance of cement-based mortars. For 180 days cured samples, the strength activity index was 86.2% for 10 mass% of PC replacement, and 81.2% for 15% cement substitution. This data clearly characterizes the pozzolanic reactivity of the examined ash that slightly retarded strength evolution. On the other hand, the final strength values are high and give biomass ash potential for its use in cement-based materials. In summary, the analyzed ash was found to be prospective material for construction industry contributing to the reduction of energy for clinkering, CO2 emission and mining of raw materials for PC production.
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
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
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
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
18th International Multidisciplinary Scientific Geoconference SGEM 2018 - Nano, Bio, Green ans Space - Technologies for a Sustainable Future
ISBN
978-619-7408-52-2
ISSN
1314-2704
e-ISSN
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Number of pages
8
Pages from-to
461-468
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 30, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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