ASTM D8395-23

ASTM D8395-23

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1.1 This standard specification covers a standardized method whereby an aromatic polyamide fiber can be evaluated prior to modification where the finished product (formulation of aramid fiber plus some form of treatment) is to be used in asphalt mixtures. The aromatic, polyamide fiber (shortened to “aramid” in non-treated form) can be specified by physical and mechanical properties whereby the aramid fiber is treated and the final product form is used in asphalt mixtures. The purpose of adding aramid fiber is to improve the asphalt mixture”s mechanical performance. Aramid fiber may provide structural properties to the mixture and thus is different than fibers such as cellulose fibers that are used to prevent drain down. The aramid fiber may be coated (that is, “treated”) with a binder such as wax, emulsion, or similar. The fiber can also be blended with a polyolefin fiber or other additive to reduce loss of fibers into the airstream during mixing due to the lightweight nature of aramid fiber. The mechanical properties listed in the standard specification are for the non-treated aramid fiber since it is difficult to test shortened fibers for properties such as linear density, tensile strength, and Young”s modulus.

Product Details

Published:
05/01/2023
Number of Pages:
2
File Size:
1 file , 250 KB
Note:
This product is unavailable in Russia, Ukraine, Belarus

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