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ASTM D5994-98(2003)

Заменен
Standard Test Method for Measuring Core Thickness of Textured Geomembrane — 3 стр.
Значение и использование

Thickness is one of the basic index properties used to control and track the quality of many geomembranes. Additionally, many mechanical properties (for example, tensile yield strength, puncture strength, etc.) can be related to core thickness. Core thickness values may also be required in calculation of some parameters such as diffusion coefficients or tensile stresses.

The measured core thickness of geomembranes may vary considerably depending on the pressure applied to the specimen during measurement. To reduce variation in measurements and the chance of unrealistically low values due to excessively high pressures, a specific gage point geometry and applied force are prescribed in this test method.

The test method is applicable to all commonly available textured geomembranes that are deployed as manufactured geomembrane sheets.

Область применения

1.1 This test method covers a procedure to measure the core thickness of textured geomembranes.

1.2 This test method does not provide thickness values for geomembranes under variable normal stresses.

ICS
59.080.70 Geotextiles. Including geosynthetics / Геотекстиль
Сборник ASTM
04.13 Geosynthetics / Геосинтетические материалы
Тематика
Geotechnical Engineering