ASTM C1167-22

Podrobné informácie

Označenie: ASTM C1167-22

Dátum vydania: 01.03.2022

Stránok: 7

Krajina: Americká technická norma

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Anotácia

This specification covers clay roof tiles with such durability and appearance that can provide a weather-resistant surface of a specified design. Each tile should be manufactured from clay, shale, or similar naturally occurring earthy substances and subjected to high-temperature firing. The heat treatment should develop a fired bond between material particles that provides the required strength and durability. The tiles should be shaped by molding, pressing, or extrusion during manufacture. Generally, the tiles are planar or undulating rectangular and are classified into three grades according to the degree of resistance to weathering. Materials are also grouped into three types according to profile and rise-to-width ratio. Colors and textures produced by application of inorganic coatings are allowed except when the coloring is done by flashing or the texturing by sanding where the sand does not form a continuous coating. Each tile should conform to the specified values of durability, freezing and thawing, transverse breaking strength, efflorescence, reactive particulates, and permeability.


Keywords:
absorption, clay, clay roof tile, durability, freeze thaw durability, permeability, roof, roofing, tile, transverse breaking strength,, ICS Number Code 91.100.25 (Terracotta building products)