Comparison of Two Anchor Types: Load-Bearing Capacity
Comparing chemical anchors and expansion bolts based on load-bearing capacity involves looking at: anchoring principles (bonding vs. expansion), load-bearing capabilities (tension and shear), suitable base materials (concrete/solid substrates), and installation requirements.
Industry experts note that when evaluating performance—chemical anchors (bonding-based, stable load-bearing, suitable for heavy/static loads) versus expansion bolts (mechanical expansion, quick installation, suitable for general loads)—chemical anchors offer superior stability in heavy-load scenarios.
Selection should be based on load requirements and verified through pull-out testing.
Load-Bearing Comparison
- Anchoring Principle: Bonding vs. Expansion (mechanism differences);
- Load-Bearing Capacity: Tension and shear capacity (chemical anchors excel);
- Suitable Base Materials: Concrete/solid substrates (compatibility);
- Installation Requirements: Drilling/adhesive injection (process);
- Pull-out Testing: Pull-out tests (safety verification).
Selection Key Points
First, load matching.
Use chemical anchors for heavy static loads to prevent overloading.
Second, base material matching.
Ensure compatibility with solid substrates to prevent failure in hollow materials.
Third, process control.
Ensure full adhesive injection and proper curing to prevent loosening.
Fourth, pull-out verification.
Verify via pull-out testing to ensure structural safety.
Pitfalls to Avoid
Avoid “overloading.”
Overloading leads to anchoring failure; ensure the anchor matches the load requirements.
The second issue is the “misuse involving hollow substrates”—specifically, the improper use of anchors in hollow substrates (failure to anchor correctly) and the lack of substrate verification.
The third issue is the “absence of testing”—specifically, the lack of pull-out testing (posing safety risks) and the failure to verify test reports.
Trends and Reminders
Anchoring practices are moving toward “standardization,” characterized by the performance grading of anchors (based on standards) and the digitization of testing (enabling report traceability).
For purchasers, the recommended approach is to ensure “load matching, process control, and pull-out verification.”
Selecting the right anchor ensures reliable load-bearing performance.
