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THERMAL INSULATING MATERIAL WITH HIGH MECHANICAL STRENGTH MADE FROM CLAY BRICK WASTE AND COAL ASH USING THE MICROWAVE ENERGY
- Source :
- Journal of Engineering Studies and Research, Vol 26, Iss 2 (2020)
- Publication Year :
- 2020
- Publisher :
- Alma Mater Publishing House "Vasile Alecsandri" University of Bacau, 2020.
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Abstract
- The paper presents the results of experimental research for manufacture a high mechanical strength thermal insulating material using the microwave energy. Clay brick waste (75 - 83 mass %) and coal ash (15 - 23 mass %) as raw material and silicon carbide (2%) as a foaming agent have been used as a powder mixture. The porous product obtained by a sintering/ foaming process at 1115 - 1145 ºC had relatively low density and thermal conductivity (0.50 - 0.68 g/cm3 and 0.078 - 0.095 W/mK, respectively) and high compressive strength (up to 7.5 MPa). This remarkable combination of some physical and mechanical characteristics of the insulating material allows its use in applications involving mechanical stress resistance.
Details
- Language :
- English
- ISSN :
- 23444932 and 20687559
- Volume :
- 26
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Journal of Engineering Studies and Research
- Accession number :
- edsair.doi.dedup.....cf320da27b1d14458189279369485fa9