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Cement concrete engineering surface treatment ways and requirements

Release time：2019/8/8 11:39:18 Source：www.www.liftexpress.com.cn/

Abstract：The floating slurry of cement concrete bridge deck is induced by bridge deck waterproof layer failure, interlayer combination of damage and the main factors of bridge deck pavement damage. Therefore, if you don't hew bridge deck laitance thoroughly

Cement concrete engineering way of surface treatment and relevant demands and engineering characteristics, so according to the requirements of engineering, the equipment and construction technology are also different. Bridge deck chisel deck chisel MAO MAO's main purpose is to solve the problem of interlayer bonding. The floating slurry of cement concrete bridge deck is induced by bridge deck waterproof layer failure, interlayer combination of damage and the main factors of bridge deck pavement damage. Hew as a result, if not completely bridge deck laitance, bleeding in vibration under the action of traffic load, the interlaminar stripping due to shear capacity, and under the erosion of water burst, lead to the upper layer asphalt concrete destruction.

1. Cut wool not only to remove the deck laitance should also form a concave and convex pits, namely after be gouge on the surface of the difference between the peaks and troughs mill (mil) values should be larger, only in this way, the interlayer can cohere the firm. Cut hair highway semi-rigid pavement base before paving asphalt concrete semi-rigid pavement base depth of cut hair and requirements as well as equipment and deck used chisel MAO different requirements.

2. The purpose of these two kinds of surface treatment are made to bond between layers of asphalt concrete pavement and base surface and firm, and to prevent water seepage, the former is to hew out of the old cement concrete pavement of polishing rough surface, the latter is to remove the airport runway tires. Both of the objective is to rectify recovery against sliding and the ability to effectively improve the vibration deformation.

3. The chisel of cement pavement and airport runway cement pavement and airport runway chisel MAO MAO requirement is to prevent the vehicle and airplane landing skid.

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Cement concrete engineering surface treatment ways and requirements

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