What is Demolition ?
Demolition is a precise process and may be done either manually or mechanically using large hydraulic equipment: elevating work platforms, excavators bulldozers or cranes. Large structures like tower blocks require High-Rise demolition equipment know as a High-Reach machines.
Rotational hydraulic shears and rock-beakers attached to specialist excavators are also used to cut or break through wood, cut steel and crush concrete.
Both demolition and deconstruction involve the pulling down of a building or structure and are the reverse of the construction process. Whilst the two processes are similar in effect deconstruction preserves various elements of the structure, such as wood, and bricks, for reuse for another building or structure.
The process reduces the structure to a rubble which is either treated as waste or, in some cases, used as hard core for other construction projects.
What is Deconstruction ?
Deconstruction is a relatively new approach that seeks to minimise the quantity of waste that is sent to landfill sites. The process involves the careful removal of materials and segregating them either for reuse or recycling.
A well-designed deconstruction project can result in less than 20% of the structure and its contents being transported to landfill fees and cost saving in refused materials can make it a cost-effective process. There are two forms of demolition:
- Piecemeal- where the demolition is conducted using hand and mechanical tools such as pneumatic drills, cranes and demolition balls, hydraulic pusher arms or heavy duty grabs; and
- Deliberate controlled collapse – where explosives are used to demolish the structure. This technique should only be used by trained, specialist competent persons. Pre-weakening of the structure, by the removal of several load-bearing elements and their replacement with temporary props, normally precedes the deliberate collapse. This is the most economic form of demolition but it is the most hazardous and everyone must be at a safe significant distance at the time of the collapse.
REMOTE DEMOLITION
Restricted access is also often a problem and as can be seen from the photograph, the Brokk 180 was just the tool to demolish this particular bridge that had been “covered” by the new replacement
BRIDGE DEMOLITION
This type of work means that you need elite professionals because the lives of people and the area’s economy depend on quality and safe infrastructure. Since inception, Manchester Demolition now
ASBESTOS MANAGEMENT
There are a lot of considerations to make when carrying out demolition or DIY projects on residential and commercial projects. One of the questions you’ll need to consider is how do you go
FACADE RETENTION
As a modern and professional demolition contractors, we have developed our capabilities to provide Facade Retention and Temporary Propping services within any Demolition Contract
GASHOLDER DEMOLITION
Some of our employees remember demolishing our first gasholder in the late 1990s. Since that date, our staff have demolished over 25 throughout England and Wales, giving the
HOUSE DEMOLITION
Why let your house demolition efforts feel stressful. We have over 50 years experience in house demolition in Manchester, we are able to deliver a variety of demolition.
CHEMICAL WASTE REMOVAL
Our hazardous waste removal and disposal service covers substances such as paint and oils, and items which incorporate toxic chemicals or liquids such as lead acid batteries, aerosols and
CRUSHING & SCREENING
Manchester Demolition provide a complete range of hard and soft rock crushing solutions. With a large modern fleet of heavy machinery alongside crushers and screeners and highly
DISMANTLING CONTRACTORS
A combination of dismantling and demolition is often beneficial as it permits the recovery of assets, enabling these to be recycled, re-used or sold to offset the client’s costs. The scope of dismantling
EMERGENCY DEMOLITION
Unfortunately, not all demolition work has a pre-plan behind it. You may have a building that perfectly happy with , but due to unforeseen circumstances can create an emergency that requires a
RAILWAY DEMOLITION
Our railway experience started in 1993, when some of the more experienced in our team demolished our first road over Rail Bridge on the Liverpool St Station to Norwich line as part of the original
HIGH-RISE DEMOLITION
Our team has been involved with the demolition of many High-Rise Structures throughout the United Kingdom. The range of structures has also been extensive, such as:
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