Carbon steel grouting sleeves are manufactured from high-quality carbon structural steel using precision machining processes, resulting in high precision.
Ductile iron grouting sleeves are cast from high-strength, high-ductile iron, exhibiting excellent overall mechanical properties.
Grouting sleeve connection is a common method of rebar connection in precast concrete components. It involves inserting rebar into a pre-embedded metal sleeve and then injecting cement-based grout.
Grouting sleeves include two types: whole grouting sleeves and half grouting sleeves. They are made of either carbon steel or ductile iron.
The American Institute for Engineering Construction (ACI) has explicitly classified this connection as a type of mechanical splices, widely applying this technology not only to the connection of reinforcing bars in precast components but also to the connection of reinforcing bars in cast-in-place concrete.
Dimensions & Specifications: Grout sleeves manufactured by Cheeron are designed for rebar connections in reinforced concrete structures, compatible with rebars ranging from 12 mm to 40 mm in diameter and applicable to various types of reinforcing steel.
Strength and Toughness: Ductile iron boasts superior ductility, fatigue resistance and seismic performance; carbon steel delivers high dimensional accuracy and stable consistent performance.
Compliance: Both materials comply with international standards, and their material properties have passed verification tests.
Selection Guide: Ductile iron grout sleeves are the preferred option for high-standard infrastructure projects and seismic-resistant applications. For standardized modular construction, carbon steel grout sleeves offer greater advantages in cost efficiency and dimensional uniformity.
When installed correctly, the service life of the sleeves matches that of concrete structures. They exhibit excellent mechanical properties including yield strength, tensile strength, and percentage elongation after fracture.
It depends on specific project conditions. Ductile iron features outstanding toughness and seismic performance for critical infrastructure, while carbon steel delivers superior dimensional accuracy and cost efficiency for standardized precast components. Load requirements, service environment and budget shall be taken into consideration during evaluation.
Adopt high-strength grout materials and strictly follow installation procedures. Grouting completeness is critical, and on-site inspections shall be carried out in accordance with standard specifications.
