In the past, when structures were renovated or demolished, materials were disposed of in landfills. It took up a lot of space in the landfills, wasted resources, and wasted money on transportation. Recently, material recycling has become more popular as an alternative to waste.
Typically, concrete collected from demolition or renovation is sent by a machine that crushes it to a consistency like gravel. It can be used for many applications such as driveways, walkways, gardens and much more. It also has a series of advantages over more traditional materials.
Crushed limestone is a common rock used to make gravel for driveways and walkways. Depending on the size and source, the stones are sold by the ton, bag, or cubic yard of coverage. The average price of this material is $ 20 to $ 40 per ton, $ 3.00 to 00 7.00 per 50 pound bag, or about $ 45 per cubic yard.
For comparison, recycled concrete is sold this way. It sells for $ 6 to $ 14 per tonne and $ 20 to $ 30 per cubic yard. A driveway that is 30 feet by 20 feet requires about six tons of gravel to cover two inches of depth. This means you can spend up to $ 240 if you want to pave this driveway with limestone. If you are building on soft ground, you will only need more than one layer of gravel. In that case the prices could easily double or triple.
However, using crushed concrete can cost up to $ 36 to pave a 20-foot-by-30-foot driveway. It is about 700% cheaper than traditional materials.
The effect of the environment
The use of recycled materials instead of new gravel reduces the need for gravel mining. This means that fewer machines burn fossil fuels for digging rock quarries, and less land is disturbed for new gravel.
Also, the use of recycled aggregates means that less water is used to make cement for driveways, walkways, etc. Less cement production means that by-products of waste will not go to landfill and will occupy more space.
In contrast, conventional materials such as limestone require heavy machinery mining to extract from the ground. This process usually kills trees and other vegetation in the ear area. In addition, any animal in the area tends to run away from landmines due to declining housing and construction activity. The material then has to be transported from the mine site to the construction site.
Although some minerals and rocks need to be transported from areas where they are common, concrete is common everywhere where there are buildings. This means you should be able to find content quickly and easily wherever you are. Whatever supplier you choose must be local. This is because material prices are usually estimated with the assumption that the buyer will bear the burden. Companies usually charge extra for shipping it themselves and this increases the cost of forwarding.#Concrete #Conventional #Crushed #gravel