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ASTM C217-94(2004)

Заменен
Standard Test Method for Weather Resistance of Slate — 3 стр.
Значение и использование

This test method is useful in indicating the differences in weather resistance between various slates. This test method also provides one element in the comparison of slates.

Область применения

1.1 This test method covers two procedures for weather resistance of slate in all outdoor installations by determining the depth of softening by an abraser or by hand scraping.

Note 1—The test is based on the fact that slates containing pyrite, calcite, and carbon undergo a chemical weathering which results in the conversion of the calcite particles to gypsum. The swelling action that results causes disintegration of the slate. The extent of this action on various slates in the test has been found to correlate with the durability of the materials in actual weathering.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ICS
91.100.15 Mineral. Including earth, sands, clay, slates, stones, etc. / Минеральные материалы и изделия. Включая землю, песок, глину, шифер, камень, кирпич и т.д.
Сборник ASTM
04.07 Building Seals and Sealants; Fire Standards; Dimension Stone / Герметики и герметизация швов строительных конструкций; Стандарты по пожаробезопасности; Изделия из природного камня. Строительные изделия из природного камня
Тематика
Geotechnical Engineering