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作者通过对国际上的一些有关研究文献的综合分析后,提出了建筑粘土制品湿膨胀的危害性,特别是对上釉的墙地砖瓦上釉屋面瓦;综合阐述了引起建筑粘土制品湿膨胀的机理;介绍了湿膨胀的研究方法及研究实例;提出了在生产建筑粘土制品的原材料中要适当控制可引起湿膨胀物质的含量;”在选择生产外墙装饰砖、上釉屋面瓦的原料上,要谨慎从事,亦建议在外墙装饰砖(或清水墙砖)、上釉屋面瓦、快速烧成的墙地砖的质量检验中增设湿膨胀值的指标.
After comprehensive analysis of some international research literature, the author proposed the hazards of wet expansion of building clay products, especially the glazed roof tile and tile roofing tile; comprehensively expounded the wet expansion of the building clay product. The mechanism; introduced the research methods and research examples of wet expansion; proposed that the content of the wet-expanded substances should be properly controlled in the raw materials for the production of building clay products;” raw materials for the selection of exterior wall decorative tiles and glazed roof tiles At the same time, we must be cautious in doing so. We also recommend adding indicators for wet expansion in the quality inspection of exterior wall decoration bricks (or clear water wall bricks), glazed roof tiles, and quick-fired wall tiles.