Summary:
It needs fewer labourers than the 20-25 hands required to cover only 150m a day with hot mix,” he said. “The initial cost of using modified cold mix material is a little higher than that of hot mix, but it is a more convenient and efficient method. “With cold mix, about 1km can be covered a day. The hot mix can’t be laid on the roads during rain,” Bose said. Bose pointed out in hot mix, the bitumen is mixed with an aggregate, which is heated for some hours before being laid out..