Open AccessDENSE GLASS FOAM PRODUCED IN MICROWAVE FIELD
Author(s) -
Lucian Păunescu,
Marius Florin Drăgoescu,
Sorin Mircea Axinte,
Bogdan Valentin Păunescu
Publication year - 2018
Publication title -
journal of engineering studies and research
Language(s) - English
Resource type - Journals
eISSN - 2344-4932
pISSN - 2068-7559
DOI - 10.29081/jesr.v24i1.288
Subject(s) - foaming agent , materials science , porosity , borax , compressive strength , thermal conductivity , composite material , bottle , microwave , mechanical strength , absorption of water , raw material , mineralogy , chemistry , physics , organic chemistry , quantum mechanics
Experimental results obtained in the process of manufacturing dense glass foam using the microwave energy are presented in the work. The glass foam is produced from bottle glass waste, calcium carbonate as foaming agent and borax as fluxing agent. The high compressive strength (2.5 - 6.2 MPa) is the main mechanical feature of this product, which together with other physical and morphological features (apparent density 0.60 – 0.90 g/cm 3 , porosity 59.1 – 72.7%, thermal conductivity 0.081 – 0.105 W m K, water absorption 0.5 – 1.0%, pore size 0.5 – 3 mm), are appropriate for using as a substitute for similar building materials existing on the market.