Effect of Different Types of Glasses as Fluxing Agent on
the Sintering Temperature of Bricks |
Umme Sarmeen Akhtar,1, * Mohammad Moniruz Zaman,1 Md Sagirul Islam,1 Farah Nigar1
and Md Kamal Hossain2
Pages : 128-132
DOI : 10.1080/0371750X.2016.1278402 |
Abstract |
Generally conventional bricks of Bangladesh are sintered at 950o to 1050oC
temperature. These bricks have compressive strength between 2600 and 3000 psi. To
lower the sintering temperature, waste glass powder (borosilicate glass, coloured
glass and sodalime glass) was used in the production of bricks and sintering
temperature was successfully lowered to 650oC. Among the glass powder used,
sodalime glass produced the best result. Compressive strength of the brick made
with 50% sodalime glass was around 31.36 MPa (4550 psi), which was much higher
than that of conventional brick. Higher percentage of sodalime glass resulted in
degraded quality of bricks. Other physical properties of bricks like bulk density,
apparent porosity, water absorption and shrinkage were also better than those of
conventional one. Longevity of bricks increases when they contain both glassy and
crystalline phases. While conventional bricks possess no or less amount of glassy
phase, XRD patterns of the prepared brick sample showed prominent glassy phase
along with crystalline phase in it.
[Keywords: Waste glass, Sintering temperature, Compressive strength, Conventional
bricks, XRD] |
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