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equipment to crush concrete

Rotary Kiln

Rotary Kiln

Rotary kiln is also known as lime rotary kiln.

Product specification:Φ2.5×40m-Φ6.0×95m

Production capacity:168-10000t/h

Rotation speed:0.1–5 r/min

Applied materials: roasting cement clinker in the industries of metallurgy, refractory matter and chemical plant.

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ways to recycle and reuse concrete

Recycling concrete helps reduce construction waste and extend the life of landfills as well as saving builders disposal or tipping fees. It also reduces transportation costs because concrete can often be recycled in areas near the demolition or construction site. If builders are seeking LEED Green Building certification, they can receive points for using recycled concrete. In some instances, new employment opportunities arise in a recycling activity that would not otherwise exist.

Concrete is recycled by using industrial crushing equipment with jaws and large impactors. After the concrete is broken up, it is usually run through a secondary impactor and is then screened to remove dirt and particles and to separate the large and small aggregate. Additional processes and equipment, such as water flotation, separators, and magnets, may also be used to remove specific elements from the crushed concrete. An alternative method is to pulverize the concrete, but this is not the always the best option, as it makes it harder to complete the separation process and may leave more contamination from smaller byproducts.

When considering concrete recycling as an option, you will also need to evaluate the options available for crush the concrete. The most practical solution can be a portable crusher that can be moved to different locations or projects. Often, it works best to set it up a portable crusher at a centralized location, near where the concrete is being demolished but where it will not hinder site traffic. Factors to consider when choosing processing equipment include:

ways to recycle and reuse concrete

how to break up concrete by hand

Breaking concrete is never an easy project. While it is possible to rent a jackhammer from home improvement stores or rental yards, this can get expensive if the project drags on. Not only that, wielding the jackhammer can be a tough task on its own. Instead, many homeowners choose to break their concrete in a more leisurely and less expensive fashion with a sledgehammer.

The trick to breaking up concrete is to dig underneath the slab before hitting it with the hammer. Undermining the concrete eliminates its external support, making the material much more vulnerable to cracking through and breaking off.

With small slabs of concrete, such as patio squares or air conditioner pads, you can also have one person pry up the slab a few inches, using a demolition bar, while another person strikes the slab with the hammer. Prying up the slab has the same effect as digging underneath it. Alternatively, you can pry up the slab and shove a rock or piece of lumber under the slab to hold it up above the soil.

how to break up concrete by hand

Call 8-1-1, the national "Call Before You Dig" hotline to have all underground utility lines marked in your work area before you start the project. It's not uncommon for electrical, water, and gas lines to run under concrete structures

Dig out the soil, gravel, or other material from under the concrete, using a shovel and a pickax. Dig about 1 foot inward from the slab's edge, making a gap of 1 inch or so; the void does not need to be deep. A pickax is handy for cutting through roots, breaking up rock or shale, and scraping material out from under the slab.

Lightly sprinkle the concrete with water to minimize dust. Grasp the sledgehammer handle with your dominant hand close to the head and your other hand toward the end of the handle. Use an arching motion to lift the hammer as high as possible, but not directly over your head, then let it fall as you slide the dominant hand down the handle. Strike the concrete along the edge of the void you dug underneath, like breaking something over the edge of a table. Repeat as needed, striking in the same place each time, until the concrete breaks.

how to break up concrete by hand

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