الإدارة العامة لرفع كفاءة المشاريع 2. Technical Specifications Units of Measure Standardized in SI units. Common Density Asphalt density typically ranges from 2,200 to 2,400 kg/m³ Typical Viscosity
An ignition test typically takes 30 to 60 minutes, whereas solvent extraction and subsequent drying can take several hours.
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The correction factor (CF) is determined by testing a sample of uncoated, dry aggregate of the same gradation. Ignite it exactly as you would a regular sample. The loss in aggregate mass is the correction factor:
Before you download the , it helps to know what is inside the document. The standard is typically 8–12 pages long and includes the following major sections: astm d6307 pdf
: For Method A, the test automatically concludes when mass loss changes by less than 0.01% for three consecutive minutes. Calibration Factor ( CFcap C cap F
Nested catch pans and stainless steel wire mesh baskets designed to hold the sample while allowing air circulation to facilitate complete combustion.
Liquid asphalt binder is the most expensive component of an asphalt mix. Precise tracking ensures contractors use exactly what is specified without waste.
Stainless steel mesh baskets designed to allow air circulation and complete combustion. To help you apply this standard effectively, please
The ignition method outlined in ASTM D6307 offers major advantages over solvent extraction:
A standard laboratory oven for pre-drying the asphalt mixture samples.
The most current active version is ASTM D6307-19 , approved on February 1, 2019.
Positioned beneath the baskets to collect any fine aggregate particles that may fall through the mesh. The standard is typically 8–12 pages long and
Understanding ASTM D6307: The Standard Test Method for Asphalt Content by Ignition Method
The ASTM D6307 PDF can be obtained directly from the ASTM International website or through other standards databases and libraries. Several options are available:
Mathematical formulas to derive the final binder percentage. The Step-by-Step Testing Procedure
The standard details two primary methods for heating the sample: the or the direct irradiation method (using advanced infrared technology). Importantly, it also allows the aggregate left after ignition to be used for gradation analysis, though users are cautioned that some aggregates may experience particle size degradation during the heating process.