Recycled concrete requires the crushing and removal of reinforced steel during processing Malcolm Davy discusses how magnetic separators can assist in the process Today the recycling of materials is important to preserve our reserves of raw materials We see it everyday in liquids glass metals rubber plastics and even concrete
Get PriceMethod #1 Using a Handheld Rebar Locator You can go to a concrete surveying company and rent a small handheld rebar locator You do need to make sure that the unit in question is designed for locating metal rebar or else it will not work These units look like stud finders and can usually detect rebar down to 8 inches below the surface of
Get PriceI 80 at Mahoney State Park For more than a generation builders contractors and municipalities needing recycled concrete products and concrete crushing in Omaha NE have turned to Valley Corporation It has also found its way into many of our own projects as well The use of recycled concrete products promotes sustainability and cost savings
Get Pricesuch as crushing washing and sizing Aggregate can be naturally occurring sand and gravel or crushed stone Recycled aggregates consist mainly of crushed concrete Wilburn and Goonan 1988 i Natural Aggregates Natural aggregates consist of both sand and gravel stones and crushed stone Construction aggregates make up more than 80
Get PriceGetting Past The Rebar Recycling Product News Prior to 2024 Spence purchased a 4043 T crusher from Ohiobased Screen Machine Industries to handle concrete with rebar in it and separate metal from the concrete after it was crushed using an overhead magnetic belt conveyor Using the 4043 T concrete exits a high stacking conveyor while rebar goes out the side into a bin
Get PriceTo reinforce a 4 concrete slab or driveway with steel rebar determine the grid spacing and rebar size #3 or #4 in a 12 to 18 grid Use 2 rebar chairs to support the rebar in the center strata of the pad Overlap joints by a minimum of 12 for #3 and 15 for #4 bind with wire ties and keep the steel 3 back from the
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Get PriceComplications of Drilling Rebar Drilling Concrete is an arduous task to begin with however it becomes an entirely different job when you throw Steel Rebar into the mix Whilst hammer bits are excellent for powering through tough concrete they can come to a screeching halt when they meet Steel reinforcements potentially laying waste to your
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Get PriceHere is how Hold the rebar locator flat beside the concrete surface and start on the concrete edge to point down Press the power switch to turn the display on But it will not show you perfectly if the concrete is not that smooth In that case you can put a piece of a cupboard that is pretty thin
Get PriceProblem #3 Shrinkage cracks that allow moisture to reach the rebar Shrinkage cracks are probably the most common type of cracks in concrete When concrete is first mixed and poured it has excess water in it and in the hardening process the concrete loses its excess water which causes shrinkage cracks If too much water was added then
Get Priceconcrete crushing Heavy Equipment Forums Jul 31 2024 nbsp 0183 32We used a small crusher to process about 300 tons of 4 quot thick concrete with no rebar I was pretty impressed with it s capability for such a small portable machine It took about 4 days to crush the material We did the same as you by reducing the material into
Get Priceyes they could switch but would not be able to use the hammer drill as most cutter bits work with standard 1/2 drills and it could specified not to use a rebar cutter bit of any form Hammer drill bits are usually carbid tipped and damage before damaging the rebar dcarr82775 Structural 22 Aug 13 13 28 Most of the contractor s I run into
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Get PriceMagnet Separates Rebar from Recycled Concrete A self cleaning suspended overhead magnet was used to separate rebar from crushed concrete inside a concrete recycling system The crushed concrete had a 6 inch maximum lump size The conveyor belt was 54 inches wide and was traveling at 260 to 300 feet per minute There was a 12 inch product depth
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Get Pricethe downside is that concrete crushing is carbon intensive costly and a potentially dangerous operation mastersuna concrete admixtures provide a sustainable Getting Past The Rebar prior to 2024 spence purchased a 4043 t crusher from ohio based screen machine industries to handle concrete with rebar in it and separate
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Get PriceThe concrete crusher attachment is an ideal tool for separating concrete from rebar Concrete pulverizers crush concrete easily The force of the jaws of this concrete crusher machine crunches up the concrete and cleans it off the rebar allowing for easy separation from the rest of the rubble Much like rock rippers cement crushers or
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Get PriceRebar that is longer than the feed opening or too thick in diameter should be removed prior to the concrete being processed However some rebar is free to enter the crusher depending on its size and the capabilities of the impactor or jaw crusher
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