We are currently working on an anchorage design using HIT-RE 500 V3 adhesive with HAS-B-105 threaded rods. According to our calculations performed in Hilti PROFIS Engineering, we obtain a utilization of approximately 108% for a 1.25-inch diameter anchor embedded 25 inches deep.
We would need to use an embedment length greater than 25" to obtain a solution within criteria, but this configuration exceeds the standard limit of 20 × anchor diameter for maximum embedment depth, which places the design outside the standard application range.
We also noticed that the software does not allow selecting an anchor size larger than 1.25 inches. Could you please confirm whether larger diameters are available for this product line? Also, we would like to know how to properly validate such a configuration, potentially through an analytical verification on our side since the calculation couldn't be done on Profis.
Any guidance or documentation regarding this type of non-standard case would be greatly appreciated.
Hello,
Thank you for your question.
As you mentioned, an embedment depth greater than 25" using HIT-RE 500 V3 with a 1 ¼” HAS-B-105 threaded rod exceeds our published data, which is limited to 20 times the anchor diameter. Therefore, PROFIS Engineering for anchoring to concrete cannot model this scenario, as it falls outside our tested parameters.
That said, you're on the right track by considering HIT-RE 500 V3, which includes guidance for deep embedment applications based on rebar development theory.
To proceed, we recommend the following:
- Review the HIT-RE 500 V3 Technical Bulletin for deep embedment guidance.
- Consult Hilti’s Post-Installed Reinforcing Bar Guide for additional design recommendations and calculation examples.
Regarding anchors larger than 1 ¼” in diameter, these are classified as large diameter anchor applications. Since our published data only covers up to 1 ¼”, PROFIS Engineering does not support modeling larger diameters. However, the HIT-RE 500 V3 system includes supplementary testing for such cases.
For more information, please refer to the HIT-RE 500 V3 Technical Data for Large Diameter Elements supplement.
Because both the 28” embedment and 1 ½” anchor diameter are outside our tested range, we strongly recommend conducting a pull test to verify performance for this unique application.
I hope this information finds you well.
Best regards,