Suitable season for road construction

The season suitable for road construction is summer, and the temperature should be above 20 degrees Celsius. The specific reasons are as follows:

1. According to the principle of thermal expansion and cold contraction, when the weather is hot in summer, the volume of asphalt expands, and when the volume of asphalt shrinks in winter, the gap between pavements will only expand slightly, with little impact;

2. If roads are built in other seasons, the asphalt volume will expand and the ground will be squeezed and deformed;

3. When the temperature is high in summer, the heat energy required for asphalt melting is less and the cost is lower, and the cost of road construction in other seasons is higher.