Demolition Process for Residential Low Rise Construction

This research paper analyses the process to demolish the existing residential low rise building. The procedures of the demolition and the safe work practices have been identified. The structural principles are explained and the structural components identified. The hazardous material is explained and explained how some of the demolition wastes can be recovered, recycled and reused.

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DEMOLITION FOR RESIDENTIAL LOW RISE CONSTRUCTION
A Research Paper on Demolition By
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Table of Contents
Introduction.................................................................................................................................................3
Procedural manual and safe work practices................................................................................................3
Structural principles that form part form demolition process.....................................................................3
Identification of structural components......................................................................................................4
Potential hazards due to hazardous material..............................................................................................5
Disconnection of services during demolition process..................................................................................6
Identification of materials for the recycling and recovery...........................................................................6
Use of consultant to assess the demolition sequence.................................................................................6
Conclusion...................................................................................................................................................6
Bibliography................................................................................................................................................7

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Introduction
Demolition process of the low rise building is the practice that makes up the demolition,
dismantling, deconstruction, recycling, removal, transfer, reuse and disposal of the buildings and
theory components. The demolition procedure is how a building is gutted in the preparation of
the redevelopment or the reuse. This research paper analyses the stages and procedures needed to
perform the process of demolition.
Procedural manual and safe work practices
The site safety characteristics will emphasize the public protection, adjacent properties, vehicle
and pedestrian traffic. The registered engineer should make sure that the work is performed
safely and the personnel at the site is protected (Standards, 2015).
Structural principles that form part form demolition
process
Creating a plan: the first step in the process of demolition of a low rise building is to come up
with a plan. There are many methods of demolition depending on the building type, the materials
it is made of, the size of the building and the neighbouring structure. The creation of the plan
help to pick the method that is more safe, efficient, and cost-effective. After the plan is made, the
company of demolition can decide on the equipment types that will be needed, how much the
debris will be left, how long it will take to clean up etc. (Beyer, 2017).
Permits: the demolition of a building will change the entire landscape of the area, which can
have the impacts on the values and the taxes of a property on the area. The utilities like the gas
and electricity should be get rid of and also the hazardous materials (Cosper, 2015).

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Demolition: the final step in the process of demolition is actually getting rid of the building.
Once all are planned, obtained the permits and prepared the site, the demolition can be carried
out.
Identification of structural components
The sequences of the demolition of prima peal which is an example of low rise building in
Australia shall be done according to the actual condition of the sites, the layout of this type of the
building, restraints, its construction and structure layout. The following order will apply all the
structures of the cantilevered, verandahs, coverings devoted to the exterior walls will be
devastated first before the demolition of the main house and its inner structures of every floor.
When removing the structure of the roofs, all the lift machines in the rooms and the tanks of
water shall be demolished in the order of top-down to the level of the major roof. The demolition
of the surface slabs will start at the mid duration and the work towards the secondary beams. The
floor beams will be demolished in the sequence as follows: cantilevered, secondary and major
beams respectively. Walls that are not of load-bearing shall be demolished before demolition of
load-bearing walls (Hansen, 2016).
To evade some possible dangers of the blocks dropping out of the structure, all the brick infill
should be detached by pushing inwards prior the disassembling the framing of the strengthened
concrete. The removal of the bricks should be done from the top level downwards and the work
should be done per layers with every layer not more than 300mm. The framing of the
strengthened concrete is pulled to pieces by taking down the separate columns and beams
individually or by taking down the frame of a bay amongst 2 columns (Kibert, 2014).
when the mobile plant especially the excavator is applied to demolish the walls, at least 900mm
of the walls being destroyed must be left integral above the level of the floor to offer the

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defensive barrier at the buildings parameter and around all lifts, stairs, and any other place that
the building can fall. The structures with no loads may be pre-weakened so that the collapse may
be cautious. The pre-weakening is planned prudently so that in spite of the elimination of the
framework associates or the partial cutting of the load bearing member, the residual structures
have enough length to tolerate the loads or wind impacts until the real collapse is instigated
(Malin, 2015). Dead loads can be decreased by eliminating the surplus materials, roofs,
machinery, walls and portions of floors before demolishing the frame structures. The manager of
the demolition will evaluate where the undermining is important so that the building is pulled in
the required directions. The walls are normally undermined at the base of the building. The
excavators with the shear attachments are normally applied to dismantle the elements of the steel
structure (Standards, 2015). The hummers are normally applied to crush the concrete to the sizes
that can be managed and to remove the reinforcing steel. The fire hoses may be used to control
the dust and to maintain the wet demolition (Sutton, 2013).
Potential hazards due to hazardous material
The building to be demolished should be surveyed and the drawings obtained. Asbestos is
commonly gotten in the buildings that are to be demolished. The building may have the hidden
various hazardous agents like the asbestos, wood preservatives, PCBs dead bodies, moulds,
excreta from the various species like the rates, bats, pigeons. The asbestos and the PCBs can
cause cancer and the bats bites may cause rabies. The development of the plant equipment has
enabled the segregation of the demolition wastes types on the location and the reuse within the
construction of the replacement building (Standards, 2015).

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Disconnection of services during demolition process
Before the demolition starts, it is very significant that then services and utilities from and to the
house are disconnected. This comprises things such as the electricity, gas, drainage and supply of
water. Gas and electricity can cause a serious risk if they are left active when demolition is being
carried out. The request to disconnect the services for the aim of demolition should be made in
writing to supply the company some weeks prior demolition (Lauritzen, 2014).
Identification of materials for the recycling and recovery
Sustainable practice of recycling and reusing of the materials during demolition should be
maintained. The reuse materials are identified and removed carefully before the demolition. For
examples the wooden beams and the light fixtures may be eliminated before the demolition.
Materials such as the metals, concrete and lumbers can be sent to the facility for processing
instead of diverting them to the landfills (Cosper, 2015).
Use of consultant to assess the demolition sequence
Upon the finishing of the demolition and the necessary needed post demolition jobs, the
department of the building will be informed by the consultant in the specified forms for the
inspection and work acceptance. The constant will access all the sequence of the demolition if
they are in accordance to the law and regulation (Beyer, 2017).
Conclusion
This research paper analyses the process to demolish the existing residential low rise building.
The procedures of the demolition and the safe work practices have been identified. The structural
principles are explained and the structural components identified. The hazardous material is
explained and explained how some of the demolition wastes can be recovered, recycled and
reused.

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Bibliography
Beyer, M., 2017. Demolition Experts. 2nd Ed. Colorado: The Rosen Publishing Group.Vol 1.pp 25-78
Cosper, S., 2015. Construction and Demolition Waste. 3rd ED. Colorado: the University of Illinois at
Chicago.Vol 3.pp.56-90
Hansen, T., 2016. Recycling of Demolished Concrete and Masonry. 1st Ed. Michigan: CRC
Press.Vol4.pp.47-98
Kibert, C., 2014. Sustainable construction. 5th Ed. Melbourne: Center for Construction and
Environment.Vol2.pp.37-87
Lauritzen, E., 2014. Demolition and Reuse of Concrete and Masonry.3rd Ed. New York: CRC
Press.Vol1.pp.67-97
Malin, D., 2015. A Building Revolution. 1st Ed. Paris: Worldwatch Institute.Vol3.pp.45-93
Standards, U. S. B. o. L., 2015. Demolition.2nd Ed. Perth: U.S. Dept. of Labor.Vol5.pp.78-90
Sutton, S., 2013. Demolition.6th Ed. Toledo: Candlewick Press.Vol1.pp.34-67