ASTM D4355 هي طريقة اختبار قياسية لتدهور المنسوجات الأرضية المعرضة للضوء, رُطُوبَة, and heat in xenon arc type equipment. This test describes the determination of tensile strength degradation of any permeable textile material used for soil, foundation, تربة, صخر, إلخ. It is based on ASTM G155 practices.

ASTM D4355-0 طريقة الاختبار القياسية لتدهور المنسوجات الأرضية تحت التعرض للضوء, رُطُوبَة, والحرارة في أجهزة قوس الزينون

Deterioration of geotextiles

By exposing the sample to xenon arc radiation, moisture and heat (end-use conditions), it is intended to cause property changes. في الحقيقة, when exposed to these types of factors, polymers can have significantly altered mechanical, الكهرباء, and optical properties. Localized weather-induced deterioration simulations, such as atmospheric pollution, biological attacks, and saline exposure, are not expected by the exposures used in this practice. After each exposure period, the sample is cut or stretched strip stretched to produce a degradation curve. The latter allows users to determine the tendency of geotextile materials to deteriorate when exposed to various factors such as solar radiation, water and heat. For a combination of UV exposure and salt water, you should consider ASTM D5894.

Typical experimental parameters for ASTM D4355 testing

The characteristics and operating conditions of the samples are specified in Tables 1 و 2, على التوالى.

ASTM D4355-0 طريقة الاختبار القياسية لتدهور المنسوجات الأرضية تحت التعرض للضوء, رُطُوبَة, والحرارة في أجهزة قوس الزينون

Table I: Specifications of sample characteristics

طاولة 2: Specifications of equipment operating conditions