The pattern, i.e. the manner in which the paving stones are assembled, will contribute to the decoration and style of your garden. In fact, the choice of pattern often influences the choice of paving, the form and contours of which (straight or irregular edges) should be adapted to the chosen layout. The width of joints between paving stones depends on the desired finish: 0.4" to 2" (1 to 5 cm) for masonry or sand joints, 2.75" to 4.75" (7 to 12 cm) for grass-covered joints.
In all cases, take care not to make them too large, even if they are to be grassed over, because you risk diminishing the stone effect.
Note that for patterns with thin and regular joints, it is preferable to choose paving stones with surfaces that are as flat and regular as possible.
Sedimentary rocks are the result of the accumulation and compacting of mineral debris (i.e. other stones), organic debris (animal remains and vegetation, fossils), or chemical precipitation.
They are exogenous rocks, i.e. rocks which are formed on the surface of the Earth. Sedimentary rocks are present on 75% of the surface of the Earth's continents, but when considering its crust as a whole (from the surface to a depth of 22 miles (35 km)), they only represent 5% of its total volume.
The main sedimentary rocks are:
Mont du moulin 30750 Lanuejols FRANCE.