Reader Response Draft 1
In the article 4 Ways
to Demolish a Building, Rodriguez (2018) claims that demolishing of a
building takes into consideration on several aspects. Implosion comprises
explosion method to demolish large structures. To succeed, blueprints are
evaluated to figure out the type, placement and time of explosion. The author
mentioned that high rich arm is used on buildings of approximately 66 feet or
higher. It involves a base machine and demolition tool to demolish and remove
large structures for certain structural materials. Wrecking ball is the oldest
and commonly used method. It requires skillful and experienced crane operators
to ensure smoothness of operation. Size of building to be demolished is limited
to certain extend and such method of demolition is an environmentally friendly
method. The main objective is to get back the greatest amount of materials with
minimal cost involved. However, it requires manpower and is time consuming.
Based on the points elaborated, the article addressed the 4
ways of demolishing a building. However, if the author includes information
with regards to demolishing process, it will make the article more informative.
Pre-demolishing requires planning and providing the right
protection and equipment is essential to ensure smoothness during
operation. In the article “No explosives
or swinging balls: How high-rise demolitions go down in Singapore” (2017), the
author states that once a contract for demolition is awarded, site visits and
meetings are arranged. Areas such as entering and exiting of demolition site,
disposal of debris, estimating project period will be discussed. Accidents
often occurs when demolishing is involved thus it is necessary to have
awareness for the safety of workers, public and environment. In the article “Demolition:
Construction in Reverse, with Additional Hazards” by Occupational Safety and
Health Administration (OSHA), it states that everyone present at a demolishing
site must be fully aware of the risk they may face and the necessary safety
measures they require to protect themselves.
During the demolition process, it is important to have
minimal disturbance to the surrounding environment. Based on “Environmental
Guideline on Demolition of Buildings” (2017) by Department of Environment in
Mauritius, mitigation of environmental impact such as dust and noise
managements are necessary. Dust generated is affected by the building’s size
and demolishing method. The guideline suggests measures such as water spraying
of site, consideration of wind strength and direction and covering of
demolition materials to reduce the amount of dust generated. Noises emitted
during demolition process may cause nuisance therefore preventive measures
needs to be implemented. In the article
“No explosives or swinging balls: How high-rise demolitions go down in
Singapore” (2017), the author mentioned that external scaffolding such as
canvas deduces noise.
Post-demolishing is mostly left with debris disposal. Based
on the article “Construction and Demolition Waste Recycling” (2008),
approximately 1.69 millions tonnes of construction debris was produced yet
recycling rate is 99%. Appropriate waste management measures such as reusing,
and recycling of concrete, wood and glass can be implemented to reduce
environmental impact. In the article “No explosives or swinging balls: How
high-rise demolitions go down in Singapore” (2017), the author mentioned clean
concrete can be recycled for roadside drains, kerbs and footpaths.
Reference:
Juan Rodriguez.
(2018). 4 Ways to Demolish a Building. Retrieved 14 September
2018 from https://www.thebalancesmb.com/ways-to-demolish-buildings-844420
United States of Department of Labor. Demolition: construction in Reverse, with Additional Hazard. Retrieved
1 September 2018 from https://www.osha.gov/doc/topics/demolition/index.html
Zero Waste Singapore. (2008). Construction and Demolition Waste Recycling. Retrieve 1 September
2018 from http://www.zerowastesg.com/2008/12/08/construction-and-demolition-waste-recycling/
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