Semi-flexible pavement anti-rutting SFP semi-flexible anti-rutting pavement grouting

Grouted High-Strength Composite Anti-Rutting Pavement (abbreviated as GRAC) is a novel structure based on the concept of "combining rigidity and flexibility," which integrates large-void asphalt mixtures with grout materials. By filling the large pores within the asphalt mixture with special grout, it significantly enhances the resistance to deformation under high-temperature conditions. This approach addresses the shortcomings of rigid pavements, such as poor driving comfort and numerous joints, while avoiding the damage caused by seasonal temperature variations in flexible pavements. The deflection value of Grouted High-Strength Composite Anti-Rutting Pavement is only 1/5 to 1/2 that of conventional asphalt pavements, and its rutting resistance is more than 10 times greater. Additionally, it offers excellent waterproofing, oil resistance, acid resistance, and good colorability. It can be used both for repairing rutting damage on old pavements and for new pavement construction. Due to its long service life and reduced maintenance frequency, it delivers significant social and economic benefits.Grouted High-Strength Composite Anti-Rutting Pavement is widely applicable, not only for preventive measures in new pavement construction but also for upgrading and renovating old pavements to thoroughly address severe rutting issues. It is primarily used in the following areas:

1) High-grade highways: heavy-duty roads, tunnel pavements, bridge deck pavements, intersections, long and steep slopes, ETC lanes, etc.;

2) Municipal roads: bus lanes, intersections, bus bays, BRT dedicated lanes, etc.;

3) Other special sections: seaports and port container terminals, logistics and storage bases, industrial bases, airport runways, parking lots, gas stations, etc.