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用熔融法固化生活垃圾焚烧灰渣并制备泡沫玻璃

DOI: 10.7521/j.issn.0454-5648.2014.01.19

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Abstract:

以70wt%含量的生活垃圾焚烧灰渣为原料,通过添加少量其他玻璃成分调节组成,采用熔融法固化得到玻璃态垃圾灰渣。然后以CaCO3为发泡剂,用烧结发泡法制备了性能良好的泡沫玻璃,研究了发泡温度和发泡剂含量对泡沫玻璃气孔结构、表观密度和抗压强度的影响。结果表明发泡温度和发泡剂含量对该组成泡沫玻璃的气孔结构影响较大。随着温度升高,泡沫玻璃的气孔结构变得均匀,表观密度减小,但过高的温度会导致气体逸出,气孔收缩。随着发泡剂含量的增加,泡沫玻璃的孔径逐渐增大,表观密度减小,其抗压强度的变化趋势与气孔结构、表观密度是相一致的。

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