The Way to Recycle Construction Waste in Urban Cities

The Background and Significance of Construction Waste Generating
It has become a problem for waste management that the yearly quantity of construction waste in China has accounted for more than 40％of the total amount of urban waste. Some data display that we have produced at least 20 billion m³ clay bricks during the past 50 years, most of which will change into solid construction waste in the coming 50 years. What to do with these construction waste? Can we transform them into building materials by comprehensive treatment?

Construction waste recycling and reutilizing has obtained great accomplishments in developed countries. Some relevant data show that construction waste recycling rate achieves 98％in Japan, and they have made the application manual for regenerated aggregate and concrete since 1980s. Besides, Japan Science and Technology Ministry has regarded the recycling technology as one of the ten most burgeoning technologies in the coming 30 years, and the average comprehensive utilizing rate has exceeded 70％in EU countries.

In 2005, Construction Ministry issued the Construction Waste Administrative Provisions, requiring compelling management to construction waste, formulating that any working unit and person are not allowed to mix construction waste into domestic garbage, encouraging the state to comprehensively use construction waste and inspiring construction and execution organization to preferentially adopt the comprehensive reutilized products of construction waste, which provide the policy foundation for construction waste integrated use in China.

Construction waste recycling totally changed the traditional single-way linear economic mode-“resource to product to pollution discharge” and fully realized the circular economic reaction flow-“resource to product to recycled resource to new product”.

The crawler mobile crushing plant and tire mobile crushing plant, researched and developed by Zhengzhou Zoonyee Mining Machinery Co.,Ltd, can...