How roads are built

interesting 🧐

Your best photos. Selected

I’m invested in seeing the v2 where they avoid hitting that couch.

Oh

I'm curious about the v2 avoiding that couch

Paving Construction Once the subgrade has been laid and all relevant services and drainage is installed, the construction of the paving can commence. Paving material can fall into one of two categories: · Flexible Paving · Rigid Paving Flexible paving consists of materials placed in layers on top of the subgrade. The first layer is named the base course. It is constructed to a depth of 100 to 150mm is generally built up of construction aggregate. The aggregate is spread and compacted to a minimum of 95% relative compaction, thus providing the stable foundation needed to support either additional layers of aggregates or the placement of an asphalt concrete wearing course which is applied directly on top of the base course. The wearing course is often denser and stronger than the base layer. The thickness is dependant on the specification outlined by the engineers which is based on the amount of wear, durability and maintenance. The surface course should have good non-skid capabilities and minimal glare The main materials that are used are hot rolled asphalt (HRA), dense bitumen macadam (DBM), dense tar macadam (DTM) and porous asphalt (PA). Porous asphalt is mainly used as it is an open-graded material that is designed to allow rapid drainage of surface water, thereby reducing spray as well as tyre noise.

It is an almost harmonious coordination to be able to make the roads