The sleeve should be made of high-quality carbon structural steel, low-alloy high-strength structural steel, or alloy structural steel.

Grouting material for sleeves: It is a dry mix composed of cement as the basic material, fine aggregate concrete admixtures, and other materials.

The grouting sleeve is a combination of specially processed sleeves, matching grouting materials, and assembled reinforcements. When connecting the reinforcements, quick-hardening non-shrinkouting materials are injected, and the steel reinforcements are connected to the sleeves through the bond between the materials. Grouting sleeve connectors have the advantages of reliable performance, wide applicability, and easy installation.

1. The steel reinforcements are fully and evenly enveloped by the concrete, and if two reinforcements are tightly anchored side by side, they form an overlap.

2. There is no need to increase the concrete strength grade or the length of the reinforcement anchorage. At the same time, it can ensure that the two ends of the reinforcement are in line with the direction of force.

3. While saving costs, the strength of the connection node is greatly enhanced.

In summary, the sleeve grouting connection offers precise alignment, robust load transfer, vibration reduction, corrosion protection, and ease of installation and maintenance.