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YN self-adhesive anti-crack patch

YN self-adhesive crack prevention sticker (YN crack prevention paste) is a kind of reinforced fiber material with good bending resistance, high tensile strength, and permanent anti-corrosion, which covers up and down the high-performance Viscoelastic data processed by special proportion. When the crack of cement concrete is deformed, because the tensile strength of the base material of "crack prevention paste" is greater than the bonding strength, the original concentrated stress is dispersed through the cover layer of anti-crack paste, which avoids and reduces the possibility of cracks in asphalt concrete. When the adjacent cement concrete plate is repeatedly cut up and down in a certain range, the reinforced fiber used has folding resistance and extensibility. Therefore, it is not easy to break the "anti-crack paste", adhere to the "anti-crack paste" which has good self-adhesive sealing, and separate the surface water corrosion cement concrete plate expansion joint (crack), to ensure the stability of the foundation. After many road tests and field investigations, the crack prevention sticker has an crack prevention effect. The tensile strength of the crack prevention sticker with 2mm thickness is ≥ 600N ≤ 50mm and the product extensibility is ≥ 30%. When the crack of cement concrete is deformed, because the tensile strength of the base material of "crack prevention paste" is greater than the bonding strength, the original concentrated stress is dispersed through the cover layer of anti-crack paste, which prevents and reduces the possibility of cracks in asphalt concrete. Its low-temperature flexibility, and good resistance to upper and lower shear, when the adjacent cement concrete plate, in a certain range of repeated cutting up and down, because of the use of reinforced fiber has folding resistance and extensibility. Therefore, it is not easy to break the "anti-crack paste" and keep the "anti-crack paste" has a good self-adhesive sealing property, which separates the surface water from eroding the expansion joint (cracks) of the cement concrete plate, ensures the stability of the foundation, and reduces the factors that produce cracks. Excellent adhesive properties, anti-perforation, and waterproof and sealing properties, effectively prevent surface water from infiltrating into cracks in cement concrete plate and improve the stability of the foundation. Especially when subjected to the horizontal thrust of the driving vehicle, because of its good self-stickiness and softness, the waterproof and sealing property is guaranteed. It greatly improves the formation of cracks in cement concrete slabs by waterproofing and anti-printing surface moisture infiltration and improves the solid foundation.

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Product use

1. New construction and road widening and transformation and other projects.

2. The old cement concrete pavement is covered with asphalt.

3. Repair of cracks in asphalt pavement surface and maintenance of old asphalt roads.

4. Repair of shrinkage cracks in semi-rigid base.

5. It provides an enhanced layer for airport runways, bridges, sports grounds, golf lanes, and so on.

Critical technical indicators:

1. Tension, N/50mm 400 x 800

2. Maximum tensile time extensibility (%) 20 ≤ 40

3. Anti-perforation impermeability

4. Impermeable pressure, ≥ 0.3mpa maintenance time ≥ 30min

5. Soften point (glue) > 85 ℃

6. Heat resistance protective film 130 has no obvious shrinkage, strengthened layer 180 ℃, no obvious shrinkage and deformation.

7. High-temperature shear resistance mpa 50 ℃, ≥ 1.2

8. Low-temperature compliance toughness ≥-25 ℃ without crack

9. Adhesive N/mm, ≥ 4.1 or adhesive out-of-plane fracture

Product performance index

1) physical properties

A base seam belt is a kind of active waterproof data with high strength, high elongation, and high accessibility. the net thickness is more than 2 mm, which can effectively improve the crack resistance and waterproofing performance of pavement. Geotextile is a kind of unidirectional permeable or impermeable fiber fabric suitable for earthwork engineering, the same thickness is very thin, lack of 1 mm, tensile strength, extension, and elasticity is also low, and is not suitable for use as base waterproofing data.

2) Chemical properties

The base seam band is composed of a variety of polymer data, chemical properties are stable, and anti-aging performance is , compared with geotextile has better chemical properties.

3) Adhesion properties

Base seam tape has a strong bonding ability, and can be directly bonded to the clean base, but geotextile himself does not have bonding ability, need to brush emulsified asphalt to have a certain ability to bond. The sealing effect of the adhesive is also poor.

4) only when the elasticity is large and the deformation resistance is strong can the elasticity be large and the deformation resistance be strong.

The base seam belt has the ability of "self-healing" and a strong ability to resist deformation, and will not show fracture or tear phenomenon when the cracks of the base level are staggered up and down. However, the geotextile has no elastic and variant ability at all, and it is easy to fall into fracture at the crack and lose its function when the base layer mismoves.

Product characteristics

1. Anti-penetration performance: YN anti-crack paste is made of glass fiber and polyester, which can prohibit the high-temperature construction of modified asphalt concrete. This high-temperature stability will provide a continuous non-deformed waterproof layer for the pavement, effectively avoiding moisture penetration, thus preventing the damage of the pavement layer and base caused by moisture penetration.

2. Avoid and delay reflection crack: YN anti-crack paste has very low elongation and high tensile strength, which can effectively eliminate the stress concentration at the separation or crack of the pavement, reduce the expansion and upward reflection of the crack in the pavement, delay the generation of reflection crack, prolong the service life of the road, and greatly reduce the cost of road maintenance. This product is not only used for asphalt concrete foundations but is also suitable for cement concrete bases. After washing and planning, the crack of asphalt pavement can not eliminate the crack of the base course. To prevent the crack (joint) from expanding, to prevent the crack (joint) from reflecting the surface, and to avoid Rain Water, which is soaked from the surface, entering the crack, we have developed the crack-resistant polymer of the base.

Functional characteristics:

1. Strong bonding is not easy to fall apart.

2. Good up and down temperature performance.

3. The "self-healing" function with great characteristics can heal the small piercing damage by itself, and can automatically fill and heal the smaller cracks.

4. The tear resistance is high and the durability is , which can effectively prevent the crack from expanding again. After more than three years of market research, of them can adhere to more than 1 year without cracking and damage.

5. It can effectively stop the disposal of radioactive cracks and bifurcation cracks.

6. Construction convenience. There is no need for any equipment, only a small car is required for two people to be able to be constructed. Construction personnel also do not need professional training.

7. There is no information and expense.

8. No equipment investment. No equipment is required during the construction process.

9. The construction speed is fast, and it can seize the favorable construction opportunity.

10. The construction technology is simple and quick, and there will be no pollution to the environment and no harm to the workers in the construction process.

11. The economic benefit is obvious, the fuel input without equipment input and no heating sewing material is low, and the output of a single shift is high.

12. The waterproof effect is very good, because of its good low-temperature smoothness and large adhesive force, it forms a permanent seamless adhesive layer after bonding compaction so that rainwater can not enter the base crack.