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A platform for research: civil engineering, architecture and urbanism
Rolling and forming method for flexible base in bituminous pavement structural layer
The present invention relates to a rolling and forming method for a flexible base in a bituminous pavement structural layer, which comprises the steps of paving an ATB-30 asphalt and stabilized crushed stone mixture on a paver for over 30 minutes; beginning the primary rolling operation on the mixture when the temperature of the ATB-30 asphalt and stabilized crushed stone mixture is 135-150 DEG C, wherein two double-drum rollers are arranged side by side in an echelon to roll the mixture for one time so as to compact the ATB-30 asphalt and stabilized crushed stone mixture and obtain an ATB-30 asphalt and stabilized crushed stone flexible base; after the primary rolling operation, setting an identifier for a secondary rolling region by a technician; beginning the secondary rolling operation when the temperature of the ATB-30 asphalt and stabilized crushed stone flexible base in the secondary rolling region is 125-140 DEG C, wherein a pneumatic-tired roller and a double-drum roller are adopted to cyclically and alternately roll the flexible base for four times, with the temperature of the ATB-30 asphalt and stabilized crushed stone flexible base in the secondary rolling region kept smaller than 115 DEG C; and consequently conducting the final rolling operation, wherein two double-drum rollers are arranged side by side in an echelon to roll the flexible base for one time, with the temperature of the ATB-30 asphalt and stabilized crushed stone flexible base in the secondary rolling region kept smaller than 90 DEG C.
Rolling and forming method for flexible base in bituminous pavement structural layer
The present invention relates to a rolling and forming method for a flexible base in a bituminous pavement structural layer, which comprises the steps of paving an ATB-30 asphalt and stabilized crushed stone mixture on a paver for over 30 minutes; beginning the primary rolling operation on the mixture when the temperature of the ATB-30 asphalt and stabilized crushed stone mixture is 135-150 DEG C, wherein two double-drum rollers are arranged side by side in an echelon to roll the mixture for one time so as to compact the ATB-30 asphalt and stabilized crushed stone mixture and obtain an ATB-30 asphalt and stabilized crushed stone flexible base; after the primary rolling operation, setting an identifier for a secondary rolling region by a technician; beginning the secondary rolling operation when the temperature of the ATB-30 asphalt and stabilized crushed stone flexible base in the secondary rolling region is 125-140 DEG C, wherein a pneumatic-tired roller and a double-drum roller are adopted to cyclically and alternately roll the flexible base for four times, with the temperature of the ATB-30 asphalt and stabilized crushed stone flexible base in the secondary rolling region kept smaller than 115 DEG C; and consequently conducting the final rolling operation, wherein two double-drum rollers are arranged side by side in an echelon to roll the flexible base for one time, with the temperature of the ATB-30 asphalt and stabilized crushed stone flexible base in the secondary rolling region kept smaller than 90 DEG C.
Rolling and forming method for flexible base in bituminous pavement structural layer
2015-09-02
Patent
Electronic Resource
English
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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