There are several choices when it comes to rodding. If you use steel rodding, be sure to use rodding that has no rust, is free of moisture, and is completely encased in epoxy when it is used. Or, use a rodding made of rust-proof material such as the ones mentioned above.
Splines
Seams are unavoidable in some projects. Additionally, there are occasions where strengthening them is important and recommended by some fabricators. Using splines is another way of reinforcing stone. Using a “spline key” that is installed according to the rust protection methods described above strengthens the seam by reinforcing the stone.
Spline keys are commonly in the form of a large washer. The washer is inserted into a slot that is cut in the ends of the two stone pieces that join to make the seam. The slots are cut at the midway point measuring from the top of the slab. The spline key is encased in epoxy and reinforces the seam. If the washer used as the key is made from steel, the techniques mentioned above for the steel rodding must be used for steel spline keys as well.
Liner Blocks
The last reinforcement technique that we will briefly mention is the use of linear blocks to reinforce the stone. This technique for stone reinforcement is not used often but it is used.
Bonding a linear block of stone (matching or non-matching) to the underneath part of the stone to support the seam is how this technique is used. This is done when no sub-top is used.
The reinforcement techniques we have mentioned in this article are used either alone or in tandem to strengthen the stone countertop. Why? Because natural stone is well, natural.
Therefore, each slab will vary in strength, and the properties of the two stones will behave differently from one another. Also, removing sections of the stone causes areas to be weaker and needs reinforcing. So, knowing about these reinforcement techniques is essential for anyone fabricating with these materials.
In the end, you will find that there are a variety of ways to apply these techniques and that fabricators will use one or more of them depending on the situation, the stone, and even specific design techniques and elements in the project. So, gain knowledge and experience if you are new to the craft. And if you are the one with the experience, share your knowledge and wisdom with others. By doing so, you will contribute to the overall good reputation of the natural stone industry through the high-quality workmanship that will result!