Discover the largest product range of stone kerbstone for outdoor and garden landscaping.
Granite Kerbstone Usage:
separation line between footway and carriageway
separation for headstones
highlighting of access alleys
separation marks for parking spaces
separation of areas in parks and squares
landscaping material for backyards and storage spaces
Granite is a large grain-size rock formed by the slow cooling of deep-sea magmas. As a result, it is very durable against any kind of weather, abrasion and corrosion. Granite’s main features include:
- density: 2 650 kg/m³
- hardness (Mohs scale): 6.5
- water absorption (normal conditions): 0.3%
- mechanical strength (compression): 152 MPa
- mechanical strength (bending): 15 MPa
- abrasion resistance: high
- fire rating: class A1 (non-flammable)
Anthracite granite kerbstone standard size: (W x L x H): 10 x 15 x 50 cm is recommended as kerbstone for pedestrian walkways and streets, other standard variants: 25x20x50 cm or upon request (customized, in our workshop equipped with the latest technology we can produce any size of kerbstone you need and we can process the edges according to your project), the custom finish will underlined the quality of the material and the technology used.
Everything you need to know about the installation kerbstones:
Kerbstones are laid out on a concrete underlay (semi dry screed) with gravel support.
Installation of granite kerbstone on concrete bed (semi dry screed)
1. preliminary preparation: double check the areas before you dig, because you want to avoid any damage to the utility routes
2. surface cleaning: remove any plant debris, stones or tree trunks
3. soil excavation: dig a trench of about 25 cm deep
4. laying out the gravel: lay out approx. 10 cm of gravel and compact this by hand or mechanically
5. laying out the concrete: a layer of about 10 cm thick
6. laying out the kerbstone: embed the kerbstone within the concrete layer up to a 5 cm depth. Add concrete to the back of the kerbstone for binding.
Installation over a gravel bed – not recommended for kerbstones lower than 20 cm height.
Preliminary calculations:
How to calculate the necessary quantity of kerbstones for a backyard alley with given size
Divide the necessary length by the kerbstone length, to obtain the necessary quantity for order.
E.g.: for a 15 m (1500 cm) long driveway, 1500:50 = 30 Anthracite Grey 10 x 15 x 50 cm kerbstones.
Calculate the necessary gravel volume to be laid, as follows V = L x l x h, in which:
L = trench length (15 m, in our example)
l = trench width, for estimation consider the size of a manual compactor with vibrating plate (approximately 20 cm), but we need 25 cm because we should be able to penetrate the trench with the compactor
h = the height of the gravel layer for this kerbstone, as shown in step 4 of the installation procedure (10 cm)
Expressed in meters (m), in our example we have: V = 15 x 0.25 x 0.1 = 0.375 m³
then, calculate the necessary gravel with the standard density formula (e. g. gravel 7-16 mm, with ρ = 1 550 kg/m³)
ρ = m/V => m = ρ x V, in figures
m = 1550 x 0.37 = 581 Kg, with 7-16 mm grain size
We can guarantee the best price for granite kerbstone, plus the best processing cost!
We are committed to offer you the best products with fair prices and reliable services for your decoration projects.
