项城沥青瓦品质之选

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GB/T20474—2006《玻纤胎沥青瓦》国家标准自2007年2月1日实施9年以来，沥青瓦的生产与应用形势发生了很大的变化。一是我国自制沥青瓦的生产设备有了较大的改进，从人工冲切改为机械滚刀，研发了自动化生产线，劳动生产率有了较大的提高。二是沥青瓦的产品质量有了一定的提高，原材料从大多采用改性沥青改为采用石油沥青，瓦的燃烧性能有所改进。三是产品品种从单一生产平瓦发展到平瓦与叠瓦均能生产，适应了屋面材料多元化发展。四是彩砂质量有了很大提高，淘汰了染色彩砂，主要采用烧结砂，并制定实施了JC/T1071—2008《沥青瓦用彩砂》行业标准。

What is the structure of the bituminous tile? The color sd on the surface of asphalt tile is sintered at 800 degrees Celsius. The color is long d new, d its shape is various. It c meet the needs of different people. In addition, the product belongs to soft building materials, which c be freely tailored for all use, reducing resource waste d reducing costs. Asphalt tile has no requirement for building appearce, d c successfully cover roofs of different shapes d bases. It c be widely used in different shapes.
The roofs with different base levels c be widely applied to the complex roofs, such as rudiment, arc d sphere.