Demolition Techniques

Demolition Techniques
You may assume demolition is simply blowing things up. Some involve explosions but it is however way more technical than that. There are various demolition techniques that are considered as ‘demolition’.

 

It must be noted that before any demolition takes place the following practices need to be completed according to The Constructor

1. Surveying
2. Removal of hazardous materials
3. Preparation of plan
4. Safety measures

 

Taking the above into account the following (according to Civil Engineering News) are selected.

1. Non Engineering Demolition also known as Manual.

a) Refering to tools such as Sledge Hammers, Jack Hammers and Drillers which are used by workers.

Jackhammer - Demolition Techniques.jpg
Jackhammer Technique

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Engineering Demolition which is split into 3 categories.

a) Mechanical Method:

Wrecking Ball (think Miley Cyrus but without the theatrics)

Pusher Arm technique (a specialised hydraulic arm used for smaller buildings)

Thermic Lance Technique (using flaming temperatures of 2500 0C to melt reinforcement)

Non-Explosive (drilling and filling with expanding slurry)

Concrete Sawing

Deliberate Collapse (significant structural items are removed)

Pressure Jetting (thanks to H20)

 

b) Implosion: Inward disintegration using explosives

c) Deconstruction: Non-structural and structural

Wrecking Ball - Demolition Techniques.jpg
Wrecking Ball Technique

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Demolition encompasses many techniques and is often used in conjunction with new construction or renovation.

In conclusion, I’ll take inspiration from Rumi, ‘In this life many demolitions are actually renovations.’

 

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About Sasha Anderson

I enjoy making new professional acquaintances and corresponding with existing clients. Reach out if you want to talk, L2B, social media, construction, technology, shoes, dachshunds, popular culture or travel.

Featured Tender: Olifantspoort RWS (Mmotong Wa Perekisi) Phase 4

posted in: Featured Tender | 2

Polokwane Local Municipality invites tenders for Olifantspoort RWS (Mmotong Wa Perekisi) Phase 4.

Olifantspoort RWS

Contract Number:

PM06/2018 – Polokwane Local Municipality

Description:

Polokwane Local Municipality invites tenders for Olifantspoort RWS (Mmotong Wa Perekisi) Phase 4.

 

Category Industries
Infrastructure Water
Region Site Inspection
Limpopo A compulsory clarification meeting with representatives of the Employer will take place at New Peter Mokaba Stadium Complex, Executive Lounge 1st Floor on 06 April 2018 starting at 10:00.
Closing Date Restrictions
24 April 2018 at 10:00 It is estimated that tenderers should have a CIDB contractor grading of 7CE. Telephonic, Telegraphic, Telex, Facsimile, Emailed and Late Tenders will not be accepted. Tenders may only be submitted on the tender documentation that is issued. Requirements for sealing, addressing, delivering, opening and assessment of Tenders are stated in the Tender Data

 

 

 

If you are a valued Tender subscriber, you can find more details about this Tender here
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About Michelle Ngubo

I have been working at L2B since March 2014 and my current position is Content Researcher - Africa Department and Classy is the best word that describes me.

Featured Project: Construction of services and infrastructure for 49 on Silver Oak

posted in: Featured Project | 4

Construction of services and infrastructure for 49 on Silver Oak

Description:

Construction of services and infrastructure for 49 on Silver Oak, on Portion 34 (of 3) of Erf 427 Brickfield, situated at 49 Silver Oaks Avenue in Essenwood, Durban,

Silver Oak

Status Region
 Tender KwaZulu-Natal
Category Value
 Infrastructure  R 0 Million – R 30 Million
Industry Timing
 Residential  mid-April 2018 onwards
Sector Class
 Private  Negotiated

 

 

If you are a valued Projects subscriber, you can find more details about this Project here
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About Nadia Milln

My journey at Leads 2 Business all started back in September 2014 as a content researcher in the Daily Tenders Africa Department. In March 2018 I was promoted to content researcher in the Private Project department. I am a fun loving, bubbly person and mom to a beautiful baby boy who is the absolute light of my life.

Featured Project: Parliamentary Village Infrastructure, Phase 2

Description: Construction of internal bulk infrastructure and services, internal roads and intersections for the proposed Provincial Parliamentary Village, phase 2 in Nelspruit, Mpumalanga CIDB 8CE

Status: Tender

Industry: Residential

Region: Nelspruit

Sector: Public

Value: R61 Million – R100 Million 

Timing: 2018 onwards.

If you are a valued Projects subscriber, you can find more details click here

 

About Debbie Wessels

Juggling a energetic, full of surprises life, working full time with two teenagers and hoping to still be sane and normal by the time I retire.

Featured Tender: Construction of the Bulk Water Supply Pipeline from Padda Junction to Thabazimbi

Construction of the Bulk Water Supply Pipeline from Padda Junction to Thabazimbi

Contract Number: RFB/MW/114/2016-17 – Magalies Water

Description : Magalies Water invites tenders for the Construction of the Bulk Water Supply Pipeline from Padda Junction to Thabazimbi.

Industry Sector : Water

Industry : Infrastructure

Region : Limpopo, North West

Site Inspection: A compulsory clarification meeting with representatives of the Employer will take place on 16 February 2017 starting at 11:00. Tenderers are to meet at the Magalies Water Boardroom in Rustenburg. Tender documents will also be made available at the clarification meeting upon proof of payment or payment as arranged by Magalies Water on the day.

Closing Date: 16 March 2017 at 12:00.

Restrictions: It is estimated that Tenderers should have a CIDB Contractor grading designation as follows: 9CE or higher or 8CE / PE. DTI Local Content requirements shall apply.The closing time for receipt of tenders is 12:00 on 15 March 2017. Sealed bids, clearly marked RFB/MW/114/2010-17: Construction of the Bulk Water Supply Pipeline from Padda Junction to Thabazimbi must be placed in the tender box at the reception of the Magalies Water head office, 38 Heystek Street, Rustenburg. Telegraphic, telephonic, telex, facsimile, e-mail and late tenders will not be accepted. Tenders may only be submitted on the tender documentation that is issued. Responsive tenders will be evaluated on the basis of functionality and on the 90/10 preference point system, price (90) and B-BBEE Status Level of Contribution (10). Requirements for sealing, addressing, delivery, opening and assessment of tenders are stated in the Tender Data.

If you are a valued Tender subscriber, Click to find more details about Construction of the Bulk Water Supply Pipeline from Padda Junction to Thabazimbi – DTA 619908.

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About Eldary Carpenter

I have been with Leads 2 Business for 5 years and absolutely love working for such a dynamic company. I started off as a Content Researcher in the Tenders Department before being promoted to Customer Relations.

Developing Africa … is Africa the new China?

When I first stepped into the Private Projects Department, I had a vague idea of what to expect from Africa.

 

 

Developments like:

 

Hope City in Ghana

 

Hope City
Hope City

 

 

 

Desert Rose International Convention and Exhibition Centre in Namibia (it’s just a desert there, right?)

 

Desert Rose Namibia
Desert Rose Namibia

 

 

Mall de Mozambique

 

Mall of Mozambique
Mall of Mozambique

 

 

 

and a whole brand New City to be built in Egypt (another desert??)

 

New City Egypt
New City Egypt

 

 

 

 

These are some of the developments that spring to mind…developments that take your breath away…but how on earth are these small, money hungry countries going to fund, let alone develop these ambitious projects? Projects so ambitious they raise eyebrows…well, mine mostly.

 

For example .  Zimbabwe wanting to build a Disney Land at Victoria Falls…a pipe dream at the moment, but what a dream!! Just to keep tourists there longer than a day or two.

 

Disneyland
Disneyland

 

 

African Development Bank is one way, but most of the investments are coming from China.

The Chinese footprint in Africa has been cemented. In the last decade, investment in Africa by the world’s second-largest economy has surged to $2.9 billion from $75 million, and with it China’s influence can be seen everywhere.

The next question… who is going to build these huge developments?

China of course.! If a Chinese company has invested in a Project, you can be sure that they will be building it too. Build, Own, Operate. But there are benefits, the Chinese do subcontract some of the work to the locals.

Swaziland, however, in an effort to ensure that their local contractors still have work and can tender for contracts, have implemented the rule that any projects less than E120 million cannot be awarded to foreign companies.

So, what has this have to do with developing Africa? Just feeding Africa does not solve anything. Providing them with employment that doesn’t warrant anything more than maybe digging a hole in the ground, painting a room, something that doesn’t require much skill, but providing these people with employment, a sense of self, educating them. Providing them with purpose. A trade. Hope. To me, that is really developing Africa.

When I used to imagine Africa, I used to think of trees, rivers, wildlife, war, jungles and deep dark Africa … nothing much could be happening there right?

How wrong was I !?!

 

 

Photo Sources:

 

http://www.financialgazette.co.zw/wp-content/uploads/Disneyland.jpg

http://ghanagist.com/president-mahama-launches-hope-city/

http://www.mccormick-property.com/mpd/content/mall-mozambique

http://www.abc.net.au/news/2015-03-14/egyptian-government-reveals-plans-to-build-new-capital/6320144

http://www.namibiansun.com/infrastructure/governor-unhindered-by-n8bn-project-conservation-concerns.82564

 

 

About Melanie Miles

One girl who would rather wear boots than high heels...