Crack repair tape (also known as seam tape, pavement crack tape, asphalt seam sealing tape) has become an important material in the maintenance of modern highways, municipal roads, residential lanes, etc. due to its simple construction, low cost and significant effect. It is composed of high-performance rubber, asphalt base material and reinforcing fiber, and has excellent tensile strength, high and low temperature resistance and waterproof sealing effect.

1.Rapid repair of cracks on municipal roads

Urban main roads and secondary roads are subject to high traffic flow and seasonal rain and snow climate for a long time, which is prone to horizontal cracks, longitudinal cracks, reflective cracks, etc. Due to the short construction window period and sensitive interference in cities, fast and heat-free repair methods are more popular.

Advantages of crack repair tape:

• No heating equipment is required, one-stick and ready to use;

• Repairs can be completed quickly during traffic control periods;

• Applicable to cracks of different shapes: T-cracks, Y-cracks, linear cracks, etc.;

• Tape widths vary (3cm, 5cm, 8cm, 10cm), which can be selected according to the crack width.

2.Preventive crack sealing treatment on highways

Due to the high speed and harsh road conditions on highways, early prevention of cracks is particularly important. If only relying on traditional crack filling methods, it is easy to have problems such as slow construction and short life.

Application scenarios:

• Newly appeared small cracks;

• Semi-rigid base reflective cracks;

• The interface position between the pavement and the expansion joint

3.Maintenance of residential roads and sidewalks

Residential areas and sidewalks have low traffic frequency but cracks are easy to expand, especially in old communities where the road surface is obviously aged. Once cracks are formed, if they are not handled in time, they will cause complaints from residents and safety hazards.

The role of crack repair tape:

• Low cost and easy operation, which can be operated by the property maintenance team;

• It can be used in sections to repair scattered cracks, saving materials;

• The surface friction coefficient is high and does not affect pedestrian traffic.

4.Airport runway edge crack treatment

Airport runways have extremely high requirements for ground continuity and flatness. Although most main runways use cement concrete, some taxiways and connecting roads use asphalt pavement, and crack repair becomes a necessary maintenance work.

Adaptability of crack repair tape:

• It can effectively seal cracks in asphalt pavement to prevent rainwater from eroding the underlying structure;

• It does not produce hot construction odor, which meets the airport's environmental protection and safety requirements;

• It is suitable for use during the night construction window and can be put into use quickly.

5.Bridge pavement crack treatment

Bridge pavement is prone to cracks due to structural stress concentration, large temperature difference, material deformation difference and other reasons. If the bridge deck cracks are not treated in time, it may lead to water erosion of the bridge deck layer and even steel corrosion.

Characteristics of crack repair tape:

• Good flexibility, can adapt to the micro-deformation of the bridge structure;

• Strong adhesion, can fit the waterproof layer and the surface layer tightly;

• Good UV resistance and aging resistance.

6.Crack repair of rural roads and industrial roads

Most rural roads and industrial park roads are thin-layer asphalt structures with limited maintenance funds, but the crack rate is high. Low-cost and high-efficiency crack repair methods can effectively improve the life of the road.

Advantages analysis:

• No need for hot tools, which is convenient for grassroots units to quickly construct;

• It has a good treatment effect on cracks that are not serious in structure;

• It can be repaired simultaneously with manual inspection during daily maintenance.

7.Crack pretreatment before asphalt resurfacing

Before resurfacing the old road, the original road cracks must be properly sealed, otherwise the cracks may "reflect" to the new paving layer. Using crack repair tape for pretreatment can significantly extend the life of the new paving layer.

Construction process recommendations:

• Clean the seams + seal the seams with tape + spread sand to form a good bonding surface;

• Especially suitable for intermittent resurfacing or local reinforcement projects; 

• Used with cold recycling technology, it has stronger adaptability.

8.Anti-freeze crack maintenance in cold areas

In cold areas, asphalt pavement is prone to cracks due to repeated freezing and thawing. The traditional hot grouting method is not suitable for cold construction periods, and the "cold construction" characteristics of crack repair tape are particularly important.

Features:

• Good low-temperature flexibility, no brittle cracking;

• Strong anti-freeze performance, no falling off;

• Construction can also be carried out in winter, solving the problem of "difficult winter repair".

9.Crack repair in logistics parks and heavy-loaded vehicle passages

Heavy-loaded vehicles frequently pass through logistics parks, docks, industrial parks, etc., which are prone to fatigue cracks. The repair material must have high strength, high adhesion, and high wear resistance.

Crack repair tape should have the following properties:

• High surface shear strength;

• Reinforced structure (glass fiber reinforcement, modified asphalt layer);

• Surface anti-slip treatment to adapt to high-frequency wheel pressure.

10.Slope/retaining wall joint closure

At the junction of the road slope and the retaining wall, due to structural discontinuity and frequent geological activities, "construction joints" or deformation cracks are easily formed. If not handled properly, rainwater infiltration will cause slope damage or subsidence.

Advantages of crack repair tape:

• Can be attached along irregular cracks, with strong flexibility and adaptability;

• Good waterproof sealing effect, suitable for field construction;

• Good compatibility with vegetation soil, concrete surface and other materials.

Crack repair tape is an efficient, economical and environmentally friendly road crack treatment material, which is widely used in various road facilities. It meets the needs of "high efficiency and refinement" road maintenance. Whether it is urban roads, plateaus, mountainous areas, port areas and other special working conditions.