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Publikācija: Influence of Fillers on the Alkali Activated Chamotte

Publication Type Scientific article indexed in SCOPUS or WOS database
Funding for basic activity Other research projects
Defending: ,
Publication language English (en)
Title in original language Influence of Fillers on the Alkali Activated Chamotte
Field of research 2. Engineering and technology
Sub-field of research 2.1. Construction and transportation engineering
Authors Laura Dembovska
Ģirts Būmanis
Laura Vītola
Diāna Bajāre
Keywords chamotte
Abstract Alkali-activated materials (AAM) exhibit remarkable high-temperature resistance which makes them perspective materials for high-temperature applications, for instance as fire protecting and insulating materials in industrial furnaces. Series of experiments were carried out to develop optimum mix proportions of AAM based on chamotte with quartz sand (Q), olivine sand (OL) and firebrick sawing residues (K26) as fillers. Aluminium scrap recycling waste was considered as a pore forming agent and 6M NaOH alkali activation solution has been used. Lightweight porous AAM have been obtained with density in range from 600 to 880 kg/m3 and compressive strength from 0.8 to 2.7 MPa. The XRD and high temperature optical microscopy was used to characterize the performance of AAM. The mechanical, physical and structural properties of the AAM were determined after the exposure to elevated temperatures at 800 and 1000°C. The results indicate that most promising results for AAM were with K26 filler where strength increase was observed while Q and OL filler reduced mechanical properties due to structure deterioration caused by expansive nature of selected filler.
DOI: 10.1088/1757-899X/251/1/012009
Hyperlink: http://iopscience.iop.org/journal/1757-899X 
Reference Dembovska, L., Būmanis, Ģ., Vītola, L., Bajāre, D. Influence of Fillers on the Alkali Activated Chamotte. IOP Conference Series: Materials Science and Engineering, 2017, Vol.251: 3rd International Conference on Innovative Materials, Structures and Technologies (IMST 2017), pp.1-8. ISSN 1757-8981. e-ISSN 1757-899X. Available from: doi:10.1088/1757-899X/251/1/012009
Additional information Citation count:
ID 26552