With more and more buildings were constructed, more and more construction waste were produced. In the past time, the construction waste are used for sea reclaimed and landfill, which polluted the underground water and sea water. Now, construction waste renewed equipments were invented, this automatic block machine could transform construction waste into raw materials for aac blocks

During the construction, 10,000㎡building could produce more than 500 tons construction waste. Besides, 10,000㎡ dismantled building could produce from 7,000tons to 12,000 tons construction waste.

The construction waste form road construction, building construction and old buildings dismantlement have accounted for 40% of total municipal waste. In many cities, the mainly handling method is landfill and sea reclaimed. Sea reclaimed has a bad influence on water for life. Landfill occupied much lands,such as,10million tons construction waste need occupy almost 7，000,000㎡ lands. This simple handing method of construction waste is not economical and create unavoidable damage for environment. In china, the recycle of construction waste has accounted for a little proportion, just only 5%, however, in America, this proportion is 100%

With the help of aac block plant, construction waste can be transformed into aac blocks, aac panels, and something else new wall materials. The weight of aac blocks is just 1/3 of normal blocks. Even though the light weight aac block can not used as mail wall materials, it is better in thermal insulation than normal blocks.