Product name

Grouting Rebar Coupler

Brand Name

ADTO/OEM

Grouting rebar coupler is a prefabricated component used for the mechanical connection of steel reinforcement bars, widely applied in precast concrete structures. It achieves high-strength and highly reliable connections between rebars by injecting high-strength, micro-expansive special cement-based grout into the annular gap between the sleeve and the rebars, and allowing the grout to harden.

This product is a core connecting component in prefabricated buildings, and its performance is directly related to the safety and stability of the overall structure.

Preparation: The Coupler is pre-embedded in the precast component, and on-site, the other rebar is inserted into the coupler cavity.

Grouting: The mixed grout is pumped into the coupler through the grout inlet using a specialized grouting machine.

Filling: Under pressure, the grout fills all gaps between the rebar and the inner wall of the sleeve and flows out uniformly from the outlet.

Curing and Force Transfer: Once the grout hardens, effective force transmission is achieved through the triple mechanical interlocking action between the ribs/grooves on the inner wall of the sleeve and the grout, and between the grout and the ribs on the surface of the rebar.

High Connection Strength: It achieves an equal-strength connection with the connected steel bars, with the joint strength not lower than that of the base material of the bars.

Excellent Seismic Performance: It demonstrates good ductility and cyclic tension-compression performance, meeting seismic design requirements.

Strong Applicability: It is suitable for various specifications of ribbed steel bars such as HRB400 and HRB500.

Convenient Construction: On-site work primarily involves grouting, which is relatively simple and less affected by weather and environmental conditions (construction should be conducted at temperatures above 5°C).

Controllable Quality: By regulating the fluidity, strength, and grouting density of the grouting material, the stability and reliability of the connection quality are ensured.

                                       Grouting Machine