Airside Paving Begins – Video

The airside paving process is now underway on the Kansas City International Airport New Terminal project as the Ideker team begins lime treating subgrade. The addition of lime stabilizes the soil and firms it up to ensure that there are no soft spots or earth movement when additional layers of gravel and paving are added. Water is added to the lime as it’s placed to create a chemical reaction that stabilizes the soil; moisture levels are constantly being tested with gauges that provide fast, accurate measurements. The lime is mixed into the soil, compacted, and left to cure for 48 hours. After the curing process, the soil will be remixed, compacted again, and then trimmed to grade. Next steps include adding an aggregate base course, cement-treated base layer, and more than two feet of concrete pavement. Watch the video.