In February 2019, Thanomwongse (TWS), a Colas company in Thailand, started work to rehabilitate route 206 in Phimai.
Located 300 km northeast of Bangkok, in Nakhon Ratchasima province, the city of Phimai is known for its historic relics, including Prasat Hin Phimai, one of the country’s largest Khmer temples. Teams are widening and reinforcing the existing pavement on a 30-km section, turning it into a four-lane road. 400,000 m3 of cut/fill, 230,000 m3 of cement-treated materials, 175,000 metric tons of asphalt mixes will be required. 100,000 m2 of concrete pavement, as well as five bridges (two of which will be 100 meters long) and five footbridges will also be built. For this project, TWS has mobilized more than 300 employees and most of its equipment fleet, including a cold-recycling plant and an asphalt plant equipped with a system for incorporating asphalt products obtained from planing operations on the existing pavement. In total, 25,000 tons of reclaimed asphalt pavement (RAP) will be incorporated into the mixes to the tune of 20%: a first for TWS.