Along With extension and rebuild of the city, the administrator would have to face the construction waste which is an intractable problem and an important link that affects civilization of the city. How to process the construction waste? Is there any new machinery or ...

Regarding to detailed condition, two kinds of techniques are usually adopted in producing manufactured sand, dry way and wet way. Both methods can produce high quality manufactured sand as concrete aggregate. Especially, the dry way can produce not only the ...