Cold in-place recycling construction method

Abstract

The invention discloses a cold in-place recycling construction method. The method is characterized by comprising the following steps that S1, construction preparation is conducted, specifically, a to-be-treated old pavement is pretreated, a plurality of atomizing devices are arranged on the two sides of the to-be-treated pavement at equal intervals at the same time, the atomizing devices on the two sides of a road are opposite directly, every two directly opposite atomizing devices conduct injection towards the oblique upward sides, and intersections of injection tracks exist over the to-be-treated pavement; S2, cement is evenly paved and spread on the pretreated pavement, and after the cement is paved for a certain distance, the atomizing devices within the range conduct atomizing operation; S3, water is added into the old pavement where the cement is paved and spread, milling and stirring are conducted to obtain a mixture, and the mixture is evenly flattened on the pavement; and S4, rolling and shaping are conducted. Through collision of two streams of water mist, the water mist can be evenly sprinkled on the cement, the flying dust phenomenon of the cement can be suppressed to a certain degree, the environment pollution is reduced, and the situation that the water is insufficient for actual use is prevented.

Description

technical field [0001] The invention relates to the field of construction technology, more specifically, it relates to an in-situ cold regeneration construction method. Background technique [0002] With the rapid development of my country's highway traffic, the national and provincial trunk road network has gradually formed, the proportion of new roads has decreased year by year, and the proportion of reconstruction and overhaul projects has continued to expand. If the asphalt pavement reconstruction continues to adopt the traditional method, it will not only increase the asphalt and gravel materials required for pavement reconstruction, damage the surrounding environment, but also easily cause environmental pollution. If the cold recycling technology is used to recycle the old materials of the asphalt surface and the base, it can not only save a lot of road construction materials, make full use of the old road materials, restore and improve the strength of the old road, bu...

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Problems solved by technology

[0003] The existing cold recycling construction technology is shown in the Chinese patent application number 201310212980.7. However, due to the dry spreading of the cement, it is found through investigation that the natural wind or the wind blown by the vehicle can lift the cement. When the wind is strong, A large amount of cement dust can be received on clothes and skin within a few kilometers of the tuyere, resulting in insufficient cement consumption, which has a certain impact on the regeneration of asphalt pavement

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