THE PAVEMENT METHOD OF THIN LAYER TYPE ASPHALT FOR REDUCING NOISE-DRAINAGE

摘要

PURPOSE: A pavement method of thin layer type low noise permeable asphalt is provided to improve drainage and noise reduction effects, durability, and plastic deformation resistance by preventing the blockage of air gaps, grinding noise, and friction noise on an asphalt road. CONSTITUTION: A pavement method of thin layer type low noise permeable asphalt comprises the following steps: applying tack coating emulsified asphalt of 0.8-1.5 l/m^2 on an asphalt road; and paving an asphalt mixture on the top of the tack coating emulsified asphalt. The asphalt mixture contains 91.6-93.8 weight% of mixed aggregate, 5.3-7.5 weight% of asphalt, 0.2-0.6 weight% of fiber additive, and 0.05-0.3 weight% of middle temperature additive. The mixed aggregate is composed of 75-90 weight% of thick aggregate, 8-20 weight% of fine aggregate, and 2-6 weight% of calcium carbonate. A road is paved by the tack coating emulsified asphalt and asphalt mixture. The thickness of a road paved by the tack coating emulsified asphalt and asphalt mixture is 2-3 cm. [Reference numerals] (AA) Start; (BB) Step of applying tack coating emulsified asphalt on an asphalt road; (CC) Step of paving an asphalt mixture on the top of the tack coating emulsified aspha (DD) End