Anticorrosion MA Class Cast Asphalt Concrete Experimental Study of Flow Characteristics

Abstract

GMA is a kind of brand-new anticorrosion MA class cast asphalt mixture mixing technology, and it will be used to solve the problem that steel deck plate paving of the Hongkong-Zhuhai-Macao bridge project is giant, the time limit for the project is tight and the environmental conditions can cause serious corrosion to steel deck. Using the El fluidity test, evaluate its workability that is cast asphalt concrete of British system that simulated small cooker equipment and large cooker car to produce. Results show that small cooker equipment within 120min of mixing time and large cooker car within 270min of mixing time to produce GMA mixture fluidity are all less than 20s. This shows that large cooker car can extend the duration of mixing, and be advantageous to the organization construction. At the same time, it also shows that simulated small cooker equipment can also produce considerable liquidity of cast asphalt mixture as large cooker car and can reduce material consumption on the phase of the experimental study.