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1. Importance of stress dispersion
In cement concrete slabs, especially those with thicker thickness or heavier load, cracks are often caused by local stress concentration. Although concrete itself has high compressive strength, its tensile strength is weak and cracks are prone to occur. When external forces act on the concrete surface, local stress concentration often leads to the appearance and expansion of cracks. Traditional repair methods only treat the crack surface and cannot effectively solve the problem of stress concentration, resulting in continuous crack expansion and possible structural stability.
The unique design of YN self-adhesive anti-crack patch enables it to effectively disperse stress, thereby preventing further expansion of cracks. YN self-adhesive anti-crack patch uses reinforced fiber materials and high-performance viscoelastic materials. The combination of these materials has high tensile strength and expansibility. When cracks appear in cement concrete, the patch can evenly disperse the stress concentrated in the crack site to the surrounding area through its high-strength elastic properties, thereby reducing the risk of crack expansion.
2. Stress dispersion mechanism and crack prevention and control
The core advantage of the YN self-adhesive anti-crack patch lies in its high tensile strength and large expansibility. When cracks occur in cement concrete, the strength of the patch can be greater than the bonding strength of the substrate, preventing the cracks from continuing to expand. The patch can absorb the stress around the crack through its viscoelastic layer, evenly distribute the stress, and reduce local stress concentration. This mechanism allows the YN self-adhesive anti-crack patch to effectively alleviate the stress concentration phenomenon even if the cement concrete slab is subjected to deformation or external pressure, thereby preventing more cracks from occurring.
In addition, the YN self-adhesive anti-crack patch has good shear resistance. When the cement concrete slab is subjected to external forces (such as vehicle loads, ground settlement, etc.), the patch can maintain strong adhesion and effectively prevent crack expansion caused by shear stress. Whether it is construction cracks in road construction or repair cracks in old pavement, the YN self-adhesive anti-crack patch can enhance the crack resistance of concrete through stress dispersion and effective prevention and control.
3. Strengthen the crack repair effect
YN self-adhesive anti-crack patch has good self-adhesive sealing properties on the basis of stress dispersion, and can provide long-term sealing protection for cracks. The occurrence of cement concrete cracks not only leads to stress concentration, but also easily accumulates moisture, causing subsequent corrosion and structural damage. The self-adhesiveness of YN self-adhesive anti-crack patch ensures that it can be firmly attached to the concrete surface, preventing moisture from entering the deep cracks and avoiding further damage to the cement concrete.
4. Practical application effects and advantages
Through a large number of road tests and on-site investigations, YN self-adhesive anti-crack patch has shown significant effects under various working conditions. Its stress dispersion function not only effectively prevents the expansion of cracks, but also extends the service life of concrete structures such as roads and bridges. Especially in the process of road construction and repair, the use of YN self-adhesive anti-crack patch can not only reduce the probability of cracks, but also reduce the maintenance costs and safety hazards caused by cracks.
