Final pressure and temperature determining method based on asphalt mixing material compaction characteristics

The invention relates to a final-pressure temperature determining method based on asphalt mixing material compaction characteristics. The method comprises the following steps that 1, an asphalt mixing material is prepared, wherein the asphalt mixing material is selected, the best asphalt using amoun...

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Bibliographische Detailangaben
Hauptverfasser: WANG QIQI, LIN FENGYU, GONG YONGBIN, JIANG YI, WANG QINGJUN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to a final-pressure temperature determining method based on asphalt mixing material compaction characteristics. The method comprises the following steps that 1, an asphalt mixing material is prepared, wherein the asphalt mixing material is selected, the best asphalt using amount is determined according to a mixing proportion design method, and a test part raw material is prepared; 2, test parts are formed, wherein initial forming temperature is determined according to engineering practice experiences or a viscosity-temperature curve, 10 DEG C is used as step length, the forming temperature is gradually reduced, the asphalt mixing material test parts are formed by adopting a rotary forming instrument, and 3-5 test parts are formed at each forming temperature; 4, final-pressure temperature are determined, wherein the previous forming temperature of the forming temperature is determined as final-pressure temperature according to the design void ratio of the asphalt mixing material when the