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Evaluating the Rutting Performance of Binders
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Manage episode 302411044 series 2382054
Asphalt pavements are a major component of the Australian and New Zealand road networks. Road agencies in Australia and New Zealand have been putting great efforts to produce pavements which perform and are long-lasting. This has led to the development of national specifications to ensure materials of suitable quality are used for road construction.
Austroads ATS 3110 is used as a national performance-based specification for polymer modified binders (PMBs). The specification includes the consistency 6% (at 60 °C) property to evaluate the relative performance of a binder to resist rutting, as it is one of the major failure modes of asphalt pavements.
Consistency 6% tests are currently conducted using the elastometer instrument that was developed in Australia specifically for these tests. This instrument, however, is no longer being manufactured and the supplier is no longer providing technical support for existing instruments. A new test method has therefore been developed to determine consistency 6% properties using a dynamic shear rheometer (DSR) rather than the elastometer. The DSR is widely used to test bituminous binders and other materials across the world.
Presented by Young Choi, this webinar details the outcomes of the Austroads research project which was conducted to develop the DSR consistency 6% test method. The project work included an extensive literature review, equipment investigations, optimisation of test procedures and validation studies using many different types of binders. These studies were conducted to ensure that the new DSR test method is equivalent to the current elastometer test method.
189 tập
Series đã xóa ("Feed không hoạt động" status)
When? This feed was archived on September 02, 2022 17:38 (). Last successful fetch was on August 02, 2022 11:35 ()
Why? Feed không hoạt động status. Server của chúng tôi không thể lấy được feed hoạt động của podcast trong một khoảng thời gian.
What now? You might be able to find a more up-to-date version using the search function. This series will no longer be checked for updates. If you believe this to be in error, please check if the publisher's feed link below is valid and contact support to request the feed be restored or if you have any other concerns about this.
Manage episode 302411044 series 2382054
Asphalt pavements are a major component of the Australian and New Zealand road networks. Road agencies in Australia and New Zealand have been putting great efforts to produce pavements which perform and are long-lasting. This has led to the development of national specifications to ensure materials of suitable quality are used for road construction.
Austroads ATS 3110 is used as a national performance-based specification for polymer modified binders (PMBs). The specification includes the consistency 6% (at 60 °C) property to evaluate the relative performance of a binder to resist rutting, as it is one of the major failure modes of asphalt pavements.
Consistency 6% tests are currently conducted using the elastometer instrument that was developed in Australia specifically for these tests. This instrument, however, is no longer being manufactured and the supplier is no longer providing technical support for existing instruments. A new test method has therefore been developed to determine consistency 6% properties using a dynamic shear rheometer (DSR) rather than the elastometer. The DSR is widely used to test bituminous binders and other materials across the world.
Presented by Young Choi, this webinar details the outcomes of the Austroads research project which was conducted to develop the DSR consistency 6% test method. The project work included an extensive literature review, equipment investigations, optimisation of test procedures and validation studies using many different types of binders. These studies were conducted to ensure that the new DSR test method is equivalent to the current elastometer test method.
189 tập
Alle Folgen
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