What is it?
A paver is a piece of construction equipment used to lay asphalt on roads, bridges, parking lots, etc. It lays the asphalt flat and provides minor compaction before it is compacted by rollers.
Weighing in at roughly 35,000 lbs. (that’s over 17 tons), the Blaw Knox paver is the bigger of the two types of pavers we use here at AMS Paving. It is approximately 10 feet wide and can pave areas up to 20 feet in width using hydraulic extensions. The paver is comprised of two main components: the hopper, and the screed or vibratory screed. The hopper is the collection receptacle for the raw asphalt material and the screed is where the compacted asphalt is extruded from the machine. We use these for our larger jobs as 1 single Blaw Knox paver alone can lay approximately 2,000 tons (4 MILLION lbs.) of asphalt per day, requiring around 110 truckloads of raw asphalt material.
How Does It Work?
Raw asphalt material is dumped from our transport trucks (where it had been received from the production facility at 325°F – 350°F) into the hopper at the front of the paver. The asphalt is pulled into the tunnels that feed the augers to disperse the raw material. The raw asphalt material is then passed through the back end of the paver (known as the “screed”) where it is spread and compacted onto the area being paved. All that’s left is for the heavy rollers to finish the compaction job, and the light rollers to smooth out any lines or imperfections. This smooth surface is important for aesthetics as well as the longevity of your asphalt investment. Bumpy, uneven asphalt can allow water to pool in low spots and cause cracking, resulting in both surface and underlying damage.