Where can pavement cold patch be used?

Asphalt cold patch is a road repair material that can be used all day long, the choice of asphalt cold patch should be viewed from all aspects such as oil ratio, viscosity, additives, etc., Huatong asphalt cold patch after many years of construction and practical operation and application of the use unit, now the details of some construction need to pay attention to the problems to be introduced. If the pavement base is intact, only the surface layer has potholes, and it is repaired according to the following methods: Determine the scope and depth of pavement damage, and draw a square or rectangular contour line that is roughly parallel or perpendicular to the center line of the road according to the principle of "round pit square repair".

The damaged or about to be damaged asphalt pavement is partially chiseled, the tank wall should be vertical, and the bottom of the tank should be clean and free of debris. Pour cold feed into the groove and pave the thickness slightly higher than the original pavement (, the surface should be arc-shaped (the center is 2-4 cm above the original pavement). If the depth of the pit is greater than 6cm or more than 8cm, it should be filled in layers.

The 6cm pit depth refers to the non-compaction machinery during rolling, and the 8cm pit depth refers to the road roller machinery. After the cold patch is repaired and compacted, it can be opened to traffic, and the controlled driving speed shall not exceed 60km h within 24 hours. Acceptance.

The surface of the repaired pit should be smooth, smooth, and free of wheel tracks, and the surrounding and corners must be compacted without looseness. Secondly, when the pavement base is damaged, the cause of the damage should be treated first, and then the surface layer should be repaired, and the larger cold patch material with the nominal maximum particle size of the gradation can be used to repair the base layer first, and then repair the surface layer.

As long as the use temperature of pavement cold patch is higher than minus 25, it can be used for normal construction, and Jiage pavement cold patch is suitable for repairing various types of road surface layers in any weather and environment, such as asphalt concrete roads, cement concrete roads, parking lots, airport runways, etc.

Cold patch material can be widely used in pavement, bridge pavement, parking lots, airport runway paving pipeline trenches, large, medium and small living quarters, industrial parks, bridgehead joints and construction machinery to touch the repair of parts.

The construction process of asphalt cold patch with Huatong: pit cleaning - filling the pit - compacting - cleaning - acceptance.

The specific process details of asphalt cold patch are as follows: I5I-923-33-I09

1. Cleaning of potholes.

1.Clean up the gravel and waste residue in and around the pit to be repaired, and there shall be no mud, ice and other debris in the pit.

2.The pit to be repaired should have neat cut edges, and the waste residue should be removed until the solid surface is visible.

2. Fill the pits.

1.Fill the pit with enough asphalt cold patch material.

2.Until the filler is higher than the road surface, the pothole ** should be slightly higher than the surrounding road surface and arc after filling.

3.If the depth of the pavement pothole is greater than 5cm, it should be filled in layers and compacted layer by layer, with each layer being 3-5cm.

3. Compaction. 1.After laying evenly, according to the field environment, the size and depth of the repair area, select appropriate compaction tools and methods for compaction.

2.Such as manual shovel back compaction, manual compaction, vibrating plate compaction compaction, road roller compaction. When repairing high-grade highways, the perimeter and corners of the repaired area should be fully compacted.

Fourth, cleaning. After compaction, a layer of stone powder or fine sand can be evenly sprinkled on the surface, and a cleaning tool can be used to sweep back and forth, so that fine sand can fill the surface voids.

5. Acceptance. 1.The surface of the repaired pit should be smooth, smooth and free of wheel tracks, and the corners around the pit must be compacted without looseness.

2.The compaction degree of ordinary road repair should reach more than 93, and the compaction degree of highway repair should reach more than 95.

On the question of how to use asphalt cold patch, we will introduce it in detail from several aspects

Asphalt cold patch construction:

Pit refurbishment (edge cutting, slag removal, blowing, oiling) Filler leveling (layered filling, shaping) Compaction (plate compaction, aluminum pressing plate, small roller, non-highway can command driving and rolling).

Patching potholes:

Step 1: Clean the inside of the pit, when the pit is large, there should be neat stubble around and on the ground, which is more conducive to the bonding type of asphalt cold patch.

Step 2: Fill the pit with an appropriate amount of asphalt cold patch, if the depth of the pit is more than 8cm, it needs to be compacted in layers, and the height of the filler is determined according to the degree of compaction, generally 1-2cm.

Requirements:: The repair surface is smooth, smooth, no wheel tracks, and no loose edges.

Repair of large areas of pavement:

If the pavement is damaged in a large area or the pipeline is broken to excavate the pavement, the roadbed should be cured and compacted first, and the corresponding bearing capacity should be had, and then the layered paving compaction should be used, which needs to be compacted with a plate compaction or road roller.

Parameters:

1. Physical state of asphalt cold patch:

Black granular solid.

Tons of material approximate repairable area:

Packaging, Storage:

1. The net weight of each bag is 25kg.

2. Store in a dry and cool place, avoid rain and sun.

Abstract: Asphalt cold patch material is widely used in road maintenance and repair due to its advantages of easy use and no heating.

Asphalt cold patch construction steps:

First, clean up any damage to the pavement to reveal solid ground.

A layer of interface agent is brushed around the perimeter to increase the adhesion of the old and new floors.

The asphalt cold patch is unbagged and poured into the pit, manually flattened, and the height of the filler is about centimeters above the ground.

Compaction, compaction with a small vibratory roller or other tools, layered compaction when the paving thickness is greater than 5 cm.

After the asphalt cold patch repair construction is directly opened to traffic, the rolling strength of the cold patch through the vehicle tires will be higher.

Pay attention to the problem, the cold patch must be fully compacted during construction, and the effect of the compaction density material of the cold patch will be better.

How to use asphalt cold patch?

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Asphalt cold patch material is widely used in road maintenance and repair due to its advantages of easy use and no heating. Asphalt cold patch construction steps: 1

First, clean up any damage to the pavement to reveal solid ground. 2.A layer of interface agent is brushed around the perimeter to increase the adhesion of the old and new floors.

3.The asphalt cold patch is unbagged and poured into the pit, manually flattened, and the height of the filler is about centimeters above the ground. 4.

Compaction, compaction with a small vibratory roller or other tools, layered compaction when the paving thickness is greater than 5 cm. 5.After the asphalt cold patch repair construction is directly opened to traffic, the rolling strength of the cold patch through the vehicle tires will be higher.

6.Pay attention to the problem, the cold patch must be fully compacted during construction, and the effect of the compaction density material of the cold patch will be better.

Asphalt cold patch can be widely used in pavement, bridge pavement, parking lots, airport runway paving pipeline trenches, large, medium and small living quarters, industrial parks, bridgehead joints and construction machinery to touch the parts of the repair.

If there are potholes on the road surface, try not to use cold patch, general pavement, it depends on which type, cement pavement, gravel pavement or our asphalt pavement.

It can be used for asphalt cold patch material can be widely used in pavement, bridge pavement, parking lots, airport runway paving pipeline trenches, large, medium and small living quarters, industrial parks, bridgehead joints and construction machinery to touch the repair parts.

Pavement pothole repair must be grooved and formed, which is conducive to the good adhesion and pasting of the cold patch material and the pothole, and maintain the long-lasting performance of the cold patch material after repair.

Asphalt cold patch is a cold plastic material, mostly used for asphalt pavement, cement pavement pothole repair, just laid after the compaction of the foot feeling will be a little soft, but will not affect the parking, cold patch compaction can be opened to traffic immediately, no need to close traffic, on the contrary, the greater the vehicle, the faster the strength of the cold patch. Yantai Huatong asphalt cold patch added anti-rutting agent and anti-spalling agent, so the road surface that has just been completed only has a little rut mark after heavy vehicles, and its good plasticity in the later stage can help the cold patch to recover the rut mark on its own, about a week or so of the initial strength, about a month or so of time tends to be stable.

Asphalt cold patch has good water resistance, but there can be no obvious water accumulation in the pit during construction, cement pavement repair needs to be used with interface edge banding agent, and the construction thickness can not be less than 3cm. During construction, it is necessary to ensure the full compaction of the material, and the construction thickness of more than 5cm is recommended for layered compaction, and the best compaction effect is 3-4cm.

Therefore, in addition to the use of slotting equipment slotting in the whole construction process, the construction of asphalt cold patch only needs simple compaction equipment, small road rollers, vibrating plate rammers, manpower rammers, etc. can complete the construction, there is really no tool, can be compacted by car.

The compaction tools (vibrating plate compactors or rollers or small rollers, etc.) required for the construction of the pavement can be used to repair the pavement with Huatong asphalt cold patch. Use Huatong asphalt cold patch to repair the pit construction: the use of Huatong cold patch for pavement pothole repair does not need adhesive layer oil to prepare the material can be used at any time, no need for heavy construction machinery, according to the different repair conditions of the road surface can be used impact compaction, manual compaction or automobile tire rolling.

In addition, the area repaired with Huatong cold patch material does not need to be closed to traffic, and can be opened to traffic immediately, which greatly alleviates the traffic pressure caused by road repair construction.