Top uses of gravel in construction
Gravel has many different uses and comes in various different grades (qualities). To give you a better understanding of what gravel is and what it’s used for, we’ve listed some of the top functions below.
Similarly to sand, gravel is used on roads during winter to increase traction levels for vehicles and improve safety. As supposed to sand that can sometimes only melt so much snow and ice before it completely dissolves or breaks down, gravel stays in the ice and also helps to retain the heat from cars as they drive over it, in-turn melting the ice.
Gravel is also used to help filter water. It is an extremely effective natural filter which manages to hold back precipitates containing potentially impurities. It also possesses the key characteristics of a natural filter in that it can filter out sand-sized particles, it has the correct angularity, and also the right hardness to withstand the natural erosion of water.
Gravel is also often used for landscaping, whether it is used on driveways as an alternative to a paved or tarmac to improve irrigation, or as a decorative filler over dirt in replacement of grass. This type of gravel comes in forms such as slate, granite, and marble to name a few.
Gravel is also used very commonly in construction as a base layer to the road before tarmac is laid over it. When the road has been dug up to the correct depth, the first layers of soil are laid down and compressed. Afterwards, there are several layers of rock (depending on the road) in varying sizes that are laid down before the tarmac is put down. It is during this stage that the gravel is added.
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