Control of Construction Quality of Milling Paving from quangongzi's blog

Construction material control, in the choice of modified asphalt, should be used Shell matrix AHc-75 modified asphalt. When selecting coarse aggregates, gravel should be crushed by basalt counterattack, and the amount of mud should be kept within 1%. In the actual construction process, the standard gradation in the mix should be tested to make appropriate adjustments.Road Repair Machines

Asphalt mixture with the ratio of control, should be used Marshall test design, immersion Marshall test residual stability test and rutting test three parts of the asphalt concrete mix ratio control, should be strictly in accordance with the target mix design stage, production mix design stage and production The ratio is designed to match the ratio.

Milling construction control.To deal with the extent and depth of the treatment of the surface layer to determine the use of measuring instruments in the milling side of the left and right sides of the milling plane width and depth of the measurement to ensure its width and depth to meet the design requirements; Milling the surface of the situation and the wear of the blade to detect, if the milling groove groove is not neat or uneven phenomenon exists, should promptly notify the operator to the milling machine, and timely replacement of the blade to ensure that the milling The quality of the planer is improved. Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery,Milling, should ensure that the longitudinal edge of the line, in the milling process, the marking line should be used as the milling machine control line, between the carriageway and the ultra-lane should be set between the dotted line, the use of artificial methods Set the unmarked portion. In the process of milling, the milling machine should excavate the roadway with the disease. At the time of excavation, the edge should be ladder-shaped, and the seams between the two layers should be staggered by 15cm. If the following layer of loose or weak phenomenon occurs, should be the top of the grassroots excavation, in accordance with the excavation of the three-tier approach to the road for processing. In the milling, should also be used to control the amount of water, as far as possible the use of the least water, slag tide and not wet and milling after the existence of no trace of the ground as a standard to ensure that the end of dry cleaning and dust removal.

Dust: the use of high-power air compressor with duct equipment for dust, dust on the road can be quickly blown to ensure its cleanliness. In the milling of the roadway, due to the milling machine re-paragraph will have more water spray phenomenon, and the track on the part of the slag for compaction, the use of steel wire on the milling surface of the loose residue to brush, Repair the pit area of ​​the pit, should be used to manually remove the residual debris within the pit.