Tunnel Time

May 03, 2011

The Jiaozhou Bay Tunnel paving trials with Evotherm WMA were completed last month. Evotherm exhibited good performance during road paving and minimized fumes during the tunnel application. The trial section is a 7 kilometers of polymer modified asphalt. The owner plans to pave the whole tunnel using Evotherm WMA. The tunnel project in Jiaozhou Bay in Qingdao, Shandong province is the second submarine tunnel in China. The project is a city tunnel that accommodates six-lane, two-way traffic.In a tunnel, the combination of hot mix asphalt fumes and high temperatures caused terrible working conditions. The lower temperatures improved the construction conditions greatly. The mixes made with Evotherm also achieved roadway densities more easily than the conventional HMA, creating a better quality road.

Hot-mix asphalt paving
Hot-mix asphalt paving

Paving with Evotherm warm-mix asphalt