What Are the Installation Requirements for Embedded Countersunk Bolts? GRC Embedded Parts Installation Technical Specifications

GRC embedded anchor bolt installation requires a position deviation of ≤2mm, verticality of ≤1/100, and an embedment depth error of ≤1mm. A dedicated positioning frame should be used for fixing, and position rechecking must be completed within 2 hours after concrete pouring. The anchor bolts must be made of stainless steel grade 304 or higher, with protective covers on the threaded portions.

In actual projects, one project had anchor bolt deviation of up to 5mm, causing difficulties in curtain wall panel installation, and on-site hole enlargement reduced the load-bearing capacity by 30%. In contrast, anchor bolts installed using Qinglong GRC standard positioning process achieved a 100% pass rate in inspection of 500 points, with a maximum deviation of only 1.5mm and a 40% improvement in installation efficiency.

Positioning Accuracy Control

Total station setting out with error ≤1mm; fixing with positioning frames of sufficient rigidity; these controls ensure accuracy.

Embedment Depth Requirements

Embedment depth ≥50mm; exposed length error ≤1mm; these requirements ensure anchorage.

Concrete Pouring Protection

Pouring in layers and avoiding collisions; avoiding embedded parts during vibration; these protections prevent displacement.

Finished Product Protection Measures

Protective covers on threaded portions; these measures prevent damage.

The precision of embedded parts affects installation. Qinglong GRC precise positioning ensures smooth construction.