What is the best technology for recovering waste from building materials, especially deconstructed concrete waste and sludge?
all the waste concrete will be used as the form of GREEN CONCRETE. it is the best way to utilised the wastes of concrete from old building.
initially physically sorting materials, then steel for re-rolling, bricks and other for filling, aggregate for recycling
Yes segregate steel, plastic pipes, wires,concrete, break
Then if they have good condition can reuse directly or have to modify
@ Nagalakshmi Radhakrishnan
Thank you.
Yes this is the first step, and what can we do with conreate and break
This called recycling concrete. Please follow the link below to know how can use it again. https://www.google.com/search?rlz=1C1AVNE_enMY780MY780&ei=DRxCXcXsC5DLwAKnsY-YBw&q=how+can+use+recycle+concrete&oq=how+can+use+recycle+con&gs_l=psy-ab.3.0.33i22i29i30l10.126607.148973..151101...12.0..0.256.7729.0j5j30......0....1..gws-wiz.......0i71j35i39j0i131j0j0i67j0i22i30j0i13i30j0i22i10i30j0i8i13i30.DwCaf277W9Y#kpvalbx=_pRxCXfTOJI3TwALb4qiwCA24
With regard to the aggregate, sorting may be useful. The reuse of concrete aggregate is practiced in the several cases, however, the recovered concrete aggregate willnot have the same performance as the fresh/original ones. The physico-mechanical properties of recovered concrete aggregate from demolshed buildings/structures shows some irregularities/they will not have the same performance with that of the original one. The reecovered concrete aggregates show somewhat lower physico-mechanical properties the the original ones of which produced /coming from the same source. So, using recovered concrete aggregate needs thorough examination and should be sed with care.
Crushing of large concrete elements in a mechanical manner using machines with crushing equipment. You can also crush using explosive charges in previously drilled holes. You can also use special chemicals in the holes (chemical method), which by their action blow up the concrete from the inside. Further steps are the use of crushers until the aggregate diameter is obtained. An easier process is the segregation of reinforcing steel, which after refining should be melted and re-manufactured as a reinforcement in thermal treatment.
Concrete is commonly recycled. It is crushed, the reinforcement bar is removed, and the material is screened for size. Market outlets for recycled concrete include road base, general fill, pavement aggregate, and drainage media.
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