British Standards Institution

Bituminous mixtures - Test methods for hot mix asphalt - Part 22: Wheel tracking - AMD 17284: August 31, 2007
 N BS EN 12697-22

Annotation

This European Standard describes test methods for determining the susceptibility of bituminous materials to deform under load. The test is applicable to mixtures with upper sieve size less than or equal to 32 mm.

The tests are applicable to specimens that have either been manufactured in a laboratory or cut from a pavement; test specimens are held in a mould with their surface flush with the upper edge of the mould.

The susceptibility of bituminous materials to deform is assessed by the rut formed by repeated passes of a loaded wheel at constant temperature. Three alternative types of device can be used according to this standard: large-size devices, extra large-size devices and small-size devices. With large-size devices and extra large-size devices, the specimens are conditioned in air during testing. With small-size devices, specimens are conditioned, in either air or water.

NOTE Large-size and extra large-size devices are not suitable for use with cylindrical cores.

Автоматический перевод:

Битумные смеси - Методы тестирования для асфальта горячей смеси - Часть 22: прослеживание Колеса - AMD 17284: 31 августа 2007

Этот европейский стандарт описывает методы тестирования для определения чувствительности битумных материалов для деформации при загрузке. Тест применим к смесям с верхним размером решета, меньше чем или равным 32 мм.