I am installing a floating shelf on a wall in my home. Our concept for the support is for a hidden 'L' bracket fixed to the brick wall. Brick type is a "Maxi brick" (305x162x90). I can't seem to find any data for the load capacity of your masonry chemical anchors for fixing to a 90mm thick wall. I have calculated the working load per anchor to be 280N in tension and 280N in shear. Can you please provide guidance on the capacity of your masonry chemical anchors in a 90mm thick brick wall? And/or you recommended best solution for this application?
Hi Adrian,
Thank you for contacting Hilti.
In regard to fastening in masonry, unfortunately there is no local guideline on how to design.
Our go to chemical anchor in this situation would be the HY 270: HIT-HY 270 Adhesive anchor - Chemical anchors - Hilti Australia. But it's important to highlight that masonry are a very heterogeneous group of base materials with strengths and other properties varying significantly from one block type to the other.
The HY 270 ETA approval (ETA-19_0160_HY 270_30-08-2019_ML) will give you the capacity of the fastening system in a range of masonry blocks and you select the one that has closer properties as the "Maxi Brick" you have referred for your assessment.
Our design software Profis Engineering (Hilti PROFIS Engineering) is also equipped with a masonry module where you can not only select the type of block according to the pre-approved ones but also input the capacity and geometry of the blocks used in your house.
If you require further advice on your specific project, please contact our Technical Support Team by filling the form in this link: Technical Advice Services - Hilti Australia
I hope the above is helpful.
Kind regards,
Ask Hilti team