Method for evaluating stirring uniformity of fiber modified asphalt
The invention discloses a fiber modified asphalt stirring uniformity evaluation method, which comprises: taking 100 g of a certain fiber asphalt mortar sample, placing in a drying oven, heating for 3 h, pouring into a copper sample containing vessel, allowing the distance between asphalt and the top...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a fiber modified asphalt stirring uniformity evaluation method, which comprises: taking 100 g of a certain fiber asphalt mortar sample, placing in a drying oven, heating for 3 h, pouring into a copper sample containing vessel, allowing the distance between asphalt and the top of the sample containing vessel to be 2-3 cm, naturally cooling to a room temperature, placing in a 25 DEG C constant temperature water tank, carrying out constant temperature treatment for no less than 1.5 h, and after completion of the constant temperature treatment, taking out the sample to obtain the fiber modified asphalt stirring uniformity evaluation method. Placing on a penetrometer platform, and carrying out a penetration test by adopting a standard cone of 2.5 g +/-0.05 g; the same sample is tested for 6 times in parallel, the distance between each test point and the sample containing vessel is not less than 10mm, each test data is recorded, and the needle penetration values are divided into a small data |
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