1. Preparation: Before the construction of asphalt pavement, the sundries of cement stabilized layer should be cleaned, and the damaged stabilized layer and potholes should be repaired and leveled in time. Check whether paving stones, kerbs, inspection wells, manhole covers and other structures are installed firmly. If there is a problem, deal with it on the spot.

2. Survey and lofting: The elevation of asphalt macadam layer and asphalt concrete surface layer can be marked on paved paving stones or kerbs, and indicator piles can be set at intersections or bell mouths to control the elevation.

3. Material: petroleum asphalt is used as binder, and its performance should meet the requirements of three indexes. The aggregate shall be hard, unweathered and clean crushed stone or gravel, with proper gradation, compressive strength greater than 800kg/cm2, impurity content such as mica clay less than 2%, needle-like and flaky particles less than 65,438+00%, and water absorption less than 3%. The sand is coarse sand or medium sand, with hard and weathered particles and good grading, with the maximum particle size less than 5mm and the content less than 5%. The stone chips are hard, clean and angular, the maximum particle size is less than 10mm, the powder content below 0.07mm is not more than 5%, the void ratio of stone powder is not less than 45%, and the fineness should all pass through 100 sieve, and the particle content of 0.075~0.005mm should account for 80-90% of the total weight.