Development of foamed Inorganic Polymeric Materials based on Perlite

3rd International Conference on Competitive Materials and Technology Processes

Tsaousi, G.-M.^1 ; Douni, I.^1 ; Taxiarchou, M.^1 ; Panias, D.^1 ; Paspaliaris, I.^1

Department of Mining and Metallurgical Engineering, National Technical University of Athens, Zografos, Athens, Greece^1

关键词: Apparent density;    Building element;    Construction sectors;    Curing condition;    Effective density;    Foaming process;    High potential;    Synthesis parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/123/1/012062/pdf
DOI  :  10.1088/1757-899X/123/1/012062

来源: IOP

【 摘 要 】

This work deals with the development of lightweight geopolymeric boards for use in construction sector utilizing a solid perlitic waste as the main raw material. Hydrogen peroxide (H2O2) was used for the foaming of geopolymeric pastes and the production of porous and lightweight inorganic polymeric materials. The effect of geopolymeric synthesis parameters, such as the composition of activator and the curing conditions, on paste's properties that affect the foaming process, such as setting time and viscosity, were studied in detailed. Finally, the effects of H2O2concentration on the properties (apparent density and % cell volume) and the microstructure of foamed boards were also studied. The produced porous boards have effective densities in-between 540 - 900 Kg/m3and the thermal conductivity of the optimum product is 0.08 W/mK. Based on their properties, the developed lightweight geopolymeric boards have high potential to be used as building elements in construction industry.