陶瓷废料的组成与火山灰活性研究

摘要：通过X射线衍射分析、玻璃相含量测定、28d抗压强度比及火山灰活性等试验，研究了陶瓷玻化砖废料、瓷质废料、炻质废料和陶质花盆四种类型陶瓷废料的组成与火山灰活性，为开拓陶瓷废料的应用提供依据。研究结果表明：陶瓷抛光砖粉与废陶瓷玻化砖尽管主要成分相近，但前者氯含量较高，用于水泥混合材受到限制；几种类型的陶瓷废料均具有火山灰活性，其水泥胶砂28d抗压强度比均高于62％，废陶瓷玻化砖为82．1％，瓷质废料为80．8％，炻质废料为78．3％，陶质废料为77．3％。陶瓷玻化砖废料的玻璃相含量较高，瓷质废料其次，炻质和陶质废料的玻璃相含量较低。玻璃相含量较高的陶瓷废料其水泥胶砂28d抗压强度比．较高。

Research on Pozzolanic Activity and Component of Ceramic Wastes

The pozzolanic activity of four types of ceramic wastes such as ceramic tiles wastes, porcelain wastes, stoneware wastes and pottery flowerpot wastes were investigated by means of XRD, determination of glassy phase, the 28days compressive strength ratio and pozzolanic activity, respectively, which will be helpful to the application of ceramic wastes. The experimental results showed that ceramic polishing powder and ceramic tiles wastes has the similar component but the former type of wastes was limited to application of cement admixture because of the high chloride concentration. Four types of ceramic wastes have good pozzolanic activity, and their 28 days compressive strength ratio were higher than 62% .The compressive strength ratio of the polished ceramic tiles wastes, porcelain wastes, the stoneware wastes and the pottery flowerpot wastes was 82.1%, 80.8%, 78.3% and 77.3%, respectively, which has the same order of content of glass phase. The polished ceramic tiles wastes which contains the highest content of glass phase has the highest 28 day compressive strength ratio.