Semi-flexible anti-rutting pavement special grouting material Semi-flexible pavement grouting technology

Semi-flexible anti-rutting grout is a single-component special engineering material made from high-quality specialized cement, special redispersible latex powder, active powder, high-efficiency water reducer, setting regulator, defoamer, and modified with various polymer additives. After mixing with water, this grout can fill the large voids in semi-flexible pavement asphalt mixtures, forming a pavement structure with excellent properties such as high injectability, low shrinkage, high strength and rapid hardening, wear resistance, and crack resistance.

II. Application Scope

Semi-flexible anti-rutting grout is widely used in the following scenarios:

Heavy-duty roads: Sections bearing heavy vehicle traffic, such as highways and national roads.

Long and steep slopes: Sections prone to rutting due to frequent vehicle braking and acceleration.

Ramps, toll stations, gas stations, parking lots: Areas with frequent lane changes or stops, causing significant pavement wear.

Traffic light intersections, BRT lanes, bus stops, urban expressways: Areas with frequent vehicle starts and stops, making the pavement susceptible to impact and wear.

III. Performance Characteristics

High anti-rutting performance: Semi-flexible anti-rutting grout significantly enhances the pavement's resistance to rutting, with a dynamic stability of up to 60,000 cycles/mm, 20 times that of SMA pavement.

High wear resistance: The material itself has high wear resistance, extending the pavement's service life.

High injectability: Easy to construct, it fully fills pavement voids, improving density and integrity.

Low shrinkage: Low shrinkage during hardening reduces cracks and voids caused by contraction.

High strength and rapid hardening: It has high early strength and fast hardening speed, helping to shorten construction cycles and improve pavement quality.

Wear and crack resistance: Maintains good wear and crack resistance over long-term use.

IV. Construction Method

Preparation: Clean the pavement surface to ensure it is free of dust, oil stains, and other impurities.

Mixing the grout: Mix the grout and water in a certain ratio and stir evenly.

Grouting construction: Evenly pour the mixed grout into the pavement voids, controlling the speed and quantity of pouring.

Curing: Perform necessary curing after construction to ensure the grout fully hardens and stabilizes.