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| Asphalt Pavement Surface Treatment Technology | |
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| Tweet Topic Started: Nov 6 2016, 09:01 PM (49 Views) | |
| qzz10011 | Nov 6 2016, 09:01 PM Post #1 |
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<p>Raw materials</p> <p>①Bituminous material. Treatment bituminous asphalt surface permeability material requirements, setting time is short, good adhesion, ease of construction and poured, good durability, materials commonly used in asphalt road asphalt, emulsified asphalt or coal tar. Treatment road asphalt is an ideal material for the construction of the asphalt surface, due to the poor permeability asphalt road,advanced Intelligent Asphalt Distributor jobs principle to improve adhesion, should be poured on the base layer of transparent, when using liquid petroleum pitch selection rapidly solidified liquid asphalt to shorten forming period. The construction of different asphalt content should be determined according to the temperature construction, asphalt grade, base, asphalt dosage should be increased by 15% -20% higher than the amount of oil when using coal tar pitch. When using emulsified asphalt, bitumen emulsion amount should be converted content road asphalt, emulsified asphalt and coal tar pitch type and grade required to choose.</p> <p>②Aggregate.</p> ⑵Mechanical parameters control <p>Before construction shop try to determine the paving speed and uniformity. Roller using rubber tire roller, can guarantee the degree of compaction. Mine construction material spreader trial before Caesar, and to determine the spreading rate spreading uniformity.road pothole repair equipment</p> <p>⑶Backtrack processing</p> <p>Traffic analysis based on the survey results, the extent of damage to different sections of a different approach, potholes, rutting, subsidence and other serious diseases leveling sections to be repaired achieve good flatness. Before the job pavement dust, sand,high tech asphalt grinding machine stone dust and other debris cleaned up, reaching bearing layer dried, flat, unadulterated state.</p> |
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12:54 PM Jul 11