1.1本规范涵盖了用作屋顶覆盖层的混凝土砖，其中需要耐久性和外观，以提供指定设计的耐候表面。 1.2瓷砖由波特兰水泥、水和矿物骨料制成，包括或不包括其他材料。 1.3瓷砖在制造过程中通过成型、压制或挤压成型。成型方法可用于描述瓷砖。 1.4其他成分，如适用于混凝土的化学和矿物外加剂，应符合ASTM标准规范（如适用），或应通过试验或经验证明不损害混凝土的耐久性。 1.5瓷砖通常为平面或波状矩形，具有各种横截面积剖面、形状、尺寸、表面纹理和颜色。 注1:本规范涵盖的混凝土屋顶砖由轻质或正常重量骨料或两者制成。 注2-当需要特殊特性时，如颜色、外观表面纹理或其他特殊特性，此类特性应由买方指定。然而应咨询当地销售商是否有具有所需特征的混凝土屋顶瓦。 1.6以英寸-磅为单位的数值应视为标准值。

1.1 This specification covers concrete tiles intended for the use as roof covering where durability and appearance are required to provide a weather-resistant surface of specified design. 1.2 Tiles are manufactured from portland cement, water, and mineral aggregates with or without the inclusion of other materials. 1.3 Tiles are shaped during manufacturing by molding, pressing, or extrusion. The shaping method can be used to describe the tile. 1.4 Other constituents, such as chemical and mineral admixtures established as suitable for use in concrete, shall conform to ASTM standard specifications where applicable, or shall be shown by tests or experience not to be detrimental to the durability of concrete. 1.5 Tiles are generally planar or undulating rectangular shapes available in a variety of cross-sectional areas profiles, shapes, sizes, surface textures, and colors. Note 1—Concrete roof tiles covered by this specification are made from lightweight or normal weight aggregates, or both. Note 2—When particular features are desired, such as color, surface texture for appearance, or other special features, such properties should be specified by the purchaser. However. the local sellers should be consulted as to the availability of concrete roof tile having a desired feature. 1.6 The values stated in inch-pound units are to be regarded as the standard.