Production of glass-ceramics from sewage sludge and waste glass

被引：2
|
作者：
Rozenstrauha, I. [1 ]
Sosins, G. [1 ]
Petersone, L. [2 ]
Krage, L. [1 ]
Drille, M. [1 ]
Filipenkov, V. [1 ]
机构：
[1] Riga Tech Univ, Fac Mat Sci & Appl Chem, 14-24 Azenes St, LV-1048 Riga, Latvia
[2] JSC Valmieras Stikla Skiedra, LV-4201 Valmiera, Latvia
来源：
5TH BALTIC CONFERENCE ON SILICATE MATERIALS | 2011年 / 25卷
关键词：
D O I：
10.1088/1757-899X/25/1/012016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study for recycling of sewage sludge and waste glass from JSC "Valmieras stikla skiedra" treatment of them to the dense glass-ceramic composite material using powder technology is estimated. The physical-chemical properties of composite materials were identified - density 2.19 g/cm(3), lowest water absorption of 2.5% and lowest porosity of 5% for the samples obtained in the temperature range of sintering 1120 - 1140 degrees C. Regarding mineralogical composition of glass-ceramics the following crystalline phases were identified by XRD analysis: quartz (SiO2), anorthite (CaAl2Si2O8) and hematite (Fe2O3), which could ensure the high density of materials and improve the mechanical properties of material compressive strength up to 60.31 +/- 5.09 - 52.67 +/- 19.18 MPa. The physical-chemical properties of novel materials corresponds to dense glass-ceramics composite which eventually could be used as a building material, e. g. for floor covering, road pavement, exterior tiles etc.
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页数：8
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