Precautions for Construction of Emulsified Asphalt Seal

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Precautions for Construction of Emulsified Asphalt Seal
When the old road surface to be worn pavement slurry seal, the construction should be preceded by repair pit, leveling the road; slurry seal construction should be carried out under dry conditions; slurry seal construction should use slurry Sealing layer paving machine, the work speed should be uniform pavement, should reach the thickness uniformity, surface formation requirements; slurry seal pavement, must be emulsion emulsion breaking, water evaporation, dry molding before opening the traffic, when needed Speed ??up the demulsification, a certain amount of cement or slaking lime powder can be used as filler; slurry seal construction temperature of not less than 10% On the brakes, turn, U-turn.
Sprinkle Asphalt pavement surface construction with the construction of the asphalt pavement surface treatment of asphalt surface asphalt and asphalt penetration into two types, asphalt surface treatment is the use of asphalt and fine aggregate layered material paving into a thickness of not more than 3cm Of the pavement surface layer, usually paved with the construction method, according to the spread of asphalt and spreading the level of mineral aggregate can be divided into single-layer, double and three-tier three, single-and double Layers are part of a three-tier system.<a href="http://doublesteelroller.com">Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery</a>
Three-layer surface treatment of the construction process as follows:
Clean up the grassroots, in the surface treatment before construction, should be sweeping the grassroots grassroots, so that the majority of grass-roots exposed material, and to maintain dry; if the overall strength of the grass-roots level should be strengthened.
Sprinkle through the layer (or sticky layer) asphalt, the first layer of asphalt asphalt to sprinkle cloth evenly, when found after the sprinkling of asphalt blank, missing side, should be immediately filled with spilled into the work, there should be immediately scraping accumulation . Construction should be used asphalt sprinkler spraying asphalt, the sprinkler length should be coordinated with the ability to spread mineral. Asphalt sprinkler temperature should be determined according to the construction temperature and asphalt label, under normal circumstances, the oil bitumen should be 130 �� ~ 170 ��, coal tar pitch should be 80 �� ~ 120 ��, emulsified asphalt should be spread at room temperature.

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