Preparation method of aged asphalt for on-site heat regeneration tests
A technology of aging asphalt and thermal regeneration, applied in the preparation of test samples, etc., can solve problems affecting the quality and effectiveness of thermal regeneration asphalt, the effect of thermal regeneration experiments, and the effect of asphalt rejuvenation agents, etc., to save time and manual operation cost, short preparation cycle and good effect
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[0030] Example
[0031] A preparation method of the aged asphalt for on-site thermal regeneration experiment of the present invention, comprising the following steps:
[0032] (1) Sampling: From the asphalt road section to be carried out on-site thermal regeneration construction, collect the pavement surface layer mixture at three different damaged parts of the pavement before construction heating and after construction heating. Moderately and severely damaged areas, and extract and recycle the pavement surface mixture under various conditions to obtain the corresponding asphalt binders;
[0033] (2) Test: perform two index tests of penetration and softening point on each asphalt binder obtained in step (1), respectively, and measure the index values of each asphalt binder as shown in Table 1 below;
[0034] Table 1: Index values measured for each asphalt binder in the examples
[0035]
[0036] (3) Film oven aging: The rotating film oven aging experiment is carried o...
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