Recycled Concrete Demolition Site Case Study
A good example for a recycled concrete case study is Kings Crescent Estate, Hackney.
The London Borough of Hackney Council regenerated of a number of estates. The housing stock was upgraded to the decent homes programme in the London area.
The Kings Crescent Estate was reported to have been poorly designed and did not meet the decent homes standard.
The estate comprised of five, six and seven-story housing blocks around the perimeter and a number of two-storey dwellings in the centre.
The accommodation was a mix of low rise housing with one and two bedroom flats, and three and four bedroom maisonettes.
There were several sealed-off semi-submerged underground car parks.
Recycled Concrete Pre-Demolition Audit
A pre-demolition audit was carried out to determine the quantities of materials for recycling and landfill disposal. The results of the pre-demolition audit are in the table on the left.
The pre-demolition audit allowed the contractors tending for the project to work out the best and most economical methods for recycling and to offer the client the best value for the project.
The demolition of the buildings was carried out by soft stripping, using the traditional removal of all hazardous materials first followed by the structural demolition of the buildings using low-rise machines with demolition attachments such as breakers and hammers.
Recycled Concrete Building Types
The table on the right shows the recycled concrete demolition materials from a number of building types.
The information came from pre-demolition audits and shows the importance of carrying out the audits.
Contractors can determine the best way to recycle the demolished material.
The material we are interested in is concrete. Crushed concrete can be used for fill or to make concrete.
The most profitable option is making concrete. See our article on recycled aggregate as we show an example of the cost to produce aggregate for new concrete using crushed concrete.
How To Take Advantage of Recycled Concrete
With a large amount of crushed concrete and aggregates on a construction site, you can make your own concrete rather than buy in ready-mix.
The difference in price in the UK is €30 per m3
The Hackney site above produced 2,680 tonnes of aggregate. If 50% of this was used to make concrete the volume would be around 1,000m3 depending on the mix and use of quarried materials. The saving or profit would be around €30,000
Fibo Intercon manufactures a range of mobile batching plant including 15, 30, 45 m3/hr output.
For a 8 hour shift the plant can produce between 100 to 300 m3 of concrete per day. With a difference of €30 m3 the profit earned can be between €3,000 to €9,000 per day.
The plant is mobile and can be moved from site to site maximising productivity and utilisation.
The image to the right is a B1800 concrete batching plant delivering 25m3/hr output.
Concrete being produced from demolition aggregates for a new office building in Denmark. The process demonstrates an effective circular economy, reducing CO2 and delivering sustainability.
About The Author of Recycled Concrete
Bob Evans is the Marketing Director for Fibo Intercon.
Bob has been in the construction and civil engineering industry for over forty years.
You can ask Bob a question on Concrete Disposal or any other question on concrete or concrete batching plant by texting him on 07896 246 224 or Book a CALL.
You can check Bob’s availability and book a call to suite your diary.
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Your Partner in Concrete Solutions
Fibo intercons concrete batching plant is the best avalible on the market, it is a well thougt out solution, designed to provide optimum flexibility, performance and operating efficiency.
It does not require a cast foundation, it can be placed on any even surface.
Our concrete batching plants are designed and built to a very high standard, so it will last more than fifteen years – this insures a very high return on your investment.
Fibo Intercon supply a large range of high quality concrete batching plant with a dosing accuracy of +-3% for standard machines and +-1% for our pre-weighing machines..
Below you can see a small selection of our standard machines, there can be set up and ready to go within two hours.