Autoclaved aerated concrete with an addition of waste from semi-dry flue gas desulfurization process – thermal stability and xrd investigations

Marta Plaskacz-Dziuba,

Marcin Cichosz,

Bartłomiej Igliński,

Roman Buczkowski

Abstrakt

The article presents the results of research on autoclaved aerated concrete (AAC) produced according to the manufacturer recipe and modified AAC with the addition of waste from the semi-dry flue gas desulfurization installation. Produced cubes of concrete were analysed using thermogravimetry in a temperature regime of 0–1200°C in order to determine thermal stability. Samples were also tested using X-ray diffractometer to determine the differences in the content of tobermorite 1.1 nm, the compound which is responsible for the mechanical properties of tested concrete.

Słowa kluczowe: autoclaved aerated concrete, semi-dry flue gas desulfurization, x-ray diffraction, termogravimetry
References

[1] Trzepierczyńska I., Charakterystyka i możliwość utylizacji odpadów z odsiarczania spalin, Ochrona Środowiska, 1(64), 1997.

[2] Turnock D., Environmental problems and policies in East Central Europe: A changingagenda, GeoJournal 54, 2001, 485–505.

[3] Kikuma J., Tsunashima M., Ishikawa T., Matsuno S., Ogawa A., Matsui K., Sato, In situ time-resolved X-ray diffraction of tobermorite synthesis process under hydrothermal condition, IOP Conf. Series: Materials Science and Engineering 18, 2011, 022017.

[4] Jasiczak P., Mikołajczak P., Technologia betonu modyfikowanego domieszkami i dodatkami, Wyd. Politechniki Poznańskiej, F1997.

[5] Hartmann A., Khakhutov M., Buhl J. Ch., Hydrothermal synthesis of CSH-phases (tobermorite) under influence of Ca-formate, Materials Research Bulletin 51, 2014, 389–396.