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| Impact of Additives on Foam Glass Prepared by Titania-bearing Blast Furnace Slag |
| Yang He Ma Mimg-Long Gao Ming-Lei Shi Dai Xue Xiang-Xin |
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Abstract The glass foam insulation material is prepared by using Titania-bearing blast furnace slag as the main raw material. The impact of additives on glass properties is also examined. First we adopt the single-factor experiment to analyse the amount of additives. Then it is Optimized by orthogonal means and the optimal quantity is found. The results showed that foaming agent is calcium carbonate. And with the increase in the amount of the added calcium carbonate, the diameter of foaming glass cell will increase. And we can obtain sample in line with requirement if the amount of foam is within from 0.5 percent to 1.5 percent. Bubbling process will be stable if added sodium phosphate is within from 5 percent to 7 percent. If borax used as aflux with optimal amount within from 6 percent to 8 percent, it can help reduce ordinary glass softening temperature, which is conducive to the firing of foaming glass .The optimal number value of added additives is confirmed by using orthogonal method as 1.5 percent,6 percent, 6 percent for calcium carbonate, foaming agent, borax flux respectively. The magtitude of impact of additives on glass properties arrange in an order of calcium carbonate , foaming agent and borax flux.
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Received: 17 December 2008
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2009, Vol. 44 
