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Safety gear (heat-resistant gloves, face shield, safety shoes). A mechanical split-sampler or quartering device. A cooling cage to protect technicians from hot samples. A forced-draft oven for pre-drying aggregate specimens. Step-by-Step Test Procedure
Multiple layers of stainless steel mesh baskets that allow convection air to circulate freely around the asphalt mixture during combustion. astm d6307 pdf
The asphalt sample must be quartered or split down to the appropriate test size based on the nominal maximum aggregate size (NMAS) of the mix. The sample is dried to a constant mass in an oven to ensure no moisture is mistaken for asphalt binder loss. Step 2: Setting the Calibration Factor
The "ASTM D6307 PDF" is more than just a digital file; it is the blueprint for a reliable, safe, and efficient asphalt testing method. While it is tempting to search for a free copy, the risks of using an unauthorized, outdated, or incorrect version far outweigh the cost of purchasing the official document from ASTM International. If you are looking to , or need
Understanding ASTM D6307: The Standard Test Method for Asphalt Content by Ignition Method
– full title: Standard Test Method for Asphalt Binder Content of Asphalt Mixture by Ignition Method – describes a procedure for determining the asphalt binder content in a sample of asphalt mixture. The test works by heating a sample to a high temperature (typically around 538°C or 1000°F) in a furnace to ignite and burn off the asphalt binder, leaving behind the aggregate. The difference in mass before and after ignition gives the asphalt binder content. A cooling cage to protect technicians from hot samples
If the sample contains moisture, it must be dried to a constant mass or a separate moisture correction factor must be calculated.
An internal balance capable of weighing the sample continuously during the burn.
Nested catch pans and stainless steel wire mesh baskets designed to hold the sample while allowing air circulation to facilitate complete combustion.