葡氏贯入针 Proctor penetration needle
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对沥青进行不同温度、不同针重及不同贯入时间下的针入度试验，以此来评价沥青的流变特性及路用性能。
The rheological property and pavement performance of asphalts are studied by carrying out penetration test at different temperature, different weight and different time.
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