Institute of Fundamental Technological Research
Polish Academy of Sciences


M. Kosior-Kazberuk

Recent publications
1.  Kosior-Kazberuk M., Jóźwiak-Niedźwiedzka D., Influence of fly ash from co-conbustion of coal and biomass on scaling resistance of concrete, ARCHIVES OF CIVIL ENGINEERING, ISSN: 1230-2945, Vol.56, No.3, pp.239-254, 2010

Industrial utilization of fly ash from various kinds of fuel plays an important role in the environmentally clean and cost effective power generation. The primary market for fly ash utilization is as a pozzolanic addition in concrete production. The paper concerns the concretes containing fly ash called Fly Ash from Biomass (FAB) from co-combustion of hard coal and wood biomass (wood chips). Characterization of the fly ash was carried on by means of X-ray diffractometry and E-SEM/EDS analysis. The results of laboratory studies undertaken to evaluate the influence of FAB on concrete resistance to surface scaling due to cyclic freezing and thawing in the presence of NaCl solution were presented. The tests were carried out for concretes containing up to 25% of fly ash related to cement mass. Additionally, the microstructure of air-voids was described.
It was concluded that the FAB has significant effect on concrete freeze/thaw durability. The replacement of cement by fly ash from co-combustion progressively transformed the concrete microstructure into less resistant against freeze/thaw cycles and excessive dosage (over 15%) may dangerously increase scaling.

concrete, durability, fly ash from co-combustion of coal and biomass, scaling resistance, microstructure

Kosior-Kazberuk M. - other affiliation
Jóźwiak-Niedźwiedzka D. - IPPT PAN

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