About JustStone Products
The JustStone product range of cement paving stones, cobblestones, cladding, tiles and copings was, after many years of experience in the cement cast stone industry, designed to address many of the shortcomings in the products on the market at the time.
Some of these shortcomings included,
1. A lack of uniformity in size.
For example a paver of dimension say 230mm x 230mm often varied quite considerably in size so that in a random sample of stone pavers of a square meter or two, one could end up with variances in dimensions of as much as 1cm or more between slabs. This plays havoc of course when trying to lay the paving stones in straight lines and virtually enforces a generous grouting gap.
2. Lack of uniformity in thickness.
Again, let us look at a 230mm x 230mm paver of 40mm thickness. If there is non-uniformity in thickness, say 40mm on one end tapering down to 35mm at the other, it means that there is a lot of time wasted making adjustments when laying the paving stones, in order to end up with a flat surface. Non-uniformity in thickness also often results in pavers that rock when one walks on them after having been laid down.
3. Pavers with straight edges usually require a 1cm or 2cm grouting gap.
The reason is that if they are butted together (much easier and quicker) the edges of the paving stones tend to chip which often exposes the aggregate under the surface. This detracts from the nice, neat clean lines of the straight edged product. It also of course takes a lot longer to set pavers in straight lines when a generous grouting gap is necessary. Our straight edged products (paving stones, copings and cobblestones) are designed to be close butted if so required.
4. Blistering and pin holes.
One of the challenges when manufacturing moulds is to ensure, that there are no bubbles or blisters as this will result in the end product having tiny holes scattered around or across the surfaces. This is usually more noticeable towards the edges of the pavers and cobblestones. These pin holes weather rather badly and in time, it will be quite noticeable that the paving appears to be wearing badly and might need to be replaced within a few years.
JustStone products are cast in moulds, manufactured and designed by JustStone, to meticulous and exacting standards. The result is that our straight edged products including our cobbles are all designed to be able to be butted together.
The Classic Pavers, Carriage Stone Pavers and Greyton Cobbles all have crenulated edges but are still classified as straight edged because the bases are uniform and the top surfaces carry the stone shape and texture and can be butted together. Shale Cladding and Castle Cladding are also straight edged and designed to be butted together.
Our Heritage Paver range is not straight edged and can be laid with butted joints. There will however, be small irregular gaps between the paving slabs that require grouting.
The Heritage Paving Stone Range and Nettlestone Paver Ranges each include tiles that must be laid on concrete with a grouting gap of 10mm or larger depending on the outcome or look, desired.
The variance in sizes between our paving stones is negligible and we ensure that the majority of paving slabs, tiles, cladding, copings and cobbles will be accurate to within a few millimeters of each other. The result is a Top Quality Product that is easy and quick to work with.
5. Shale Cladding.
The conventional ‘shale cladding’ used in the industry is made up of single (50mm wide) units or double (100mm wide) units. These products look very good when properly applied, but it is difficult to set small single units in many straight rows, one above the other. It is en exacting job that takes up a lot of time. We at JustStone have made things much easier by casting units of 200mm x 200mm, 200mm x 300mm and 200mm x 400mm. The over all effect is stunning and it takes a fraction of the time to apply. Once again all of our cement cladding conforms to the exacting standards of our specifications. The units fit exactly, leaving no gaps to be filled in later.
6. Wet Casting.
It is customary in the cast cement industry for some products to be cast in a ‘two part mix’. The surface layer or top half of the paving stone is cast with a full strength mix. A second pouring is then done with a weaker mix which contains more sand and no pigment. The advantage of the double pouring is that the product ends up lighter in weight and of course it is cheaper to make. However, we at JustStone, prefer to use one full strength mix in every pouring because the end product is so much stronger and less likely to crack or break and also the oxide is embodied throughout the entire product leaving you with a high quality lasting product.