ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 59, (1) 10 - 16 (2015)

Kuzielová Eva 1, Pach Ladislav 1, Palou Martin 2
1 Institute of building and architecture, Slovak academy of science, Dúbravská cesta 9, SK-845 03 Bratislava, Slovak Republic
2 Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic

Keywords: Water procedure, Low density foam concret, Microwave and ultrasonic treatment

The so called water procedure was used to prepare foam concrete samples with bulk density below 150 kg∙m⁻³. Direct foaming method was applied by using of protein based foaming agent. The amount of Portland cement was decreased gradually along with the water-cement ratio maintenance. Degradation of foams occurred with reducing of cement content to 30 % of its original quantity regardless of water procedure included or not in the preparation procedure. Stability of the foam concrete samples prepared only from 30 % of cement was achieved after microwave and ultrasonic treatment of protein based foaming agent. The so prepared foam concretes were stable also after water procedure and exhibited final bulk density of 95 kg∙m⁻³.

Record in: Scopus | Web of Science

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