Cement Pavement Rapid Repair Construction Process


Cement Pavement Rapid Repair Construction Process

Under the repeated effects of the car load and the effects of various human and environmental factors, the cement pavement will inevitably cause damage, and cause diseases such as sand, honeycomb, pit grooves, cracks, frozen melting, and dew.

In addition, the daily maintenance level of concrete pavement in my country is low. There is no good countermeasure for the rapid repair of local defects. The Jiajing Ecology is now shared with you the rapid repair of the cement pavement based on the actual operation.

First, preparation before construction

1. Construction site survey:

Before the construction, the construction site shall be investigated, the original pavement disease should be reviewed, and the construction plan shall be customized according to the site conditions, and the construction plan will be formulated.

2. Tool preparation:

There are basic conditions for using water and electricity on the spot, corner grinding machines (cutting grinding pieces, stainless steel filament heads), electric wires, electric mixers, iron barrels (3-4), water scoop (2-3), telescopic rods, rolling rolling rods, rolling rolling rods, rolling rollers Paint (3-4), tooth-shaped scraper, bubble roller, mud wipers, electronic scales, nail shoes, high-voltage water guns, brooms, electric diamonds, protective equipment (cone barrels, warning lines, color flags).

Second, basic processing

1. Clean up, no debris, dust, no oil pollution, 2. Prepare fibrous grid cloth in the cracks, 3. Prepare a tripod or KT plate at the telescopic joints, 4. Predem treatment at the sand, 5, the protruding place to polish Treatment, 6. Digging treatment at the empty drum

Third, the construction process

Set up warning signs before construction, such as placing cone barrels, pulling color flags, etc., take good on -site protection measures, choose the appropriate material placement point, stir places, solve the demand for hydropower supply, and achieve civilized construction and safe production.

1. Path cleaning: Clear road garbage, dust, etc., polish or excavate the disease parts, there must be no loose and sand. Essence

2. Reserved shrinking: The original pavement telescopic joint position is used with three -in -plate plate or extrusion plate, KT plate, etc., inlaid inside (can be 5 cm higher than the pavement, which is convenient for later removal).

3. Watering and moist: The original pavement is wet and moist (can be divided into multiple times), so that the water is fully saturated. It is advisable to have no bright water state.

4, coating interface agent: The road surface is continuously rolled in a uniformly roller interface agent in a moist state.

5. Powing grid cloth: The original pavement cracks, excavation sites, and grid fabrics are laid. If the area is too large, the two grid cloth seams should be packed ten centimeters.

6. Material stirring: Mortch: Water (4.5: 1) Called the amount of reuse of water (the amount of water can be adjusted appropriately according to the temperature), use a clean barrel to first refer to the water, then pour the mortar into the barrel, stir well with an electric mixer, propose proposed The stirrer looks at the slurry state, no mud -shaped, and good liquidity.

7. The paving scrape: Stir the mortar and pour into the construction surface, quickly use the tooth -shaped scraper, aluminum alloy scraper, or clay knife to scrape it without convex, control the thickness according to the requirements of the elevation, the scraper teeth are laying the network network. Try not to scrape the ground as much as possible to avoid scraping the grid cloth.

8. The roller foam: After the paving is flattened, use the foam roller back and forth roller, which is densely connected until the airless bubbles and no obvious seams.

9, seam treatment: Each barrel of mortar paving must be seamlessly connected, control the mixing time and construction time of the material, and cooperate with the progress. If the mixing interval is too long, there will be obvious marks at the joints, which will affect the perception. With conditions and personnel permits, two barrels can be stirred with two barrels to reduce the interval time, so that each seam pavement can be free of traces. According to the area of each telescopic joint, the construction is completed at one time. If the work is stopped, use the mold to do it.

10. Edge collection: The construction and corners must be flat and straight, and there should be no obvious staircases. Try to be consistent as much as possible.

— People can walk on half an hour.
—Watering and soaking are strictly prohibited within 1 hour
—-You can open traffic after two hours.
——Water spraying to do maintenance work after 6-8 hours