Tools everyone in the Demolition Industry Should be using

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Tools everyone in the Demolition Industry Should be using

Originally when I was given this topic, my first thoughts were….hmmm? Demolition, that’s got to be pretty straight forward, right? Blowing a bunch of buildings up or smashing walls down with a sledge hammer in an episode of “Extreme Makeover Home Edition” came to mind but apparently it’s not that simple.
After hours of research and chatting to a couple of experts in the demolition industry there are basic guidelines to follow before any of the dirty work can even begin.

What exactly are we demolishing?

Are there special regulations?

There are different tools to use for different methods of demolition. One would have to assess where the site is situated. Apparently bringing a bulldozer to a graveyard to build the next Mall of Africa would be frowned upon. Yes, it would get the job the done but there are basic regulation guidelines one would have to follow. Remember, Rome wasn’t built in a day, so it won’t be that easy to knock it down either. Depending on what you’re demolishing, you may need to use different tools to finish the job.

Here is a list of tools that everyone in the industry should be using:

1. Safety Equipment
The number one rule in construction is always SAFETY FIRST. Make sure your team is equipped with adequate Health & Safety training as well as all the necessary PPE equipment.

2. Explosives
In the controlled demolition industry, building implosion is the strategic placing of explosive material and timing of its detonation so that a structure collapses on itself in a matter of seconds, minimizing the physical damage to its immediate surroundings. Despite its terminology, building implosion also includes the controlled demolition of other structures, such as bridges, towers, and tunnels.
Building implosion (which reduces to seconds a process which could take months or years to achieve by other methods) typically occurs in urban areas and often involves large landmark structures.

3. Excavators
An excavator is a construction vehicle used to excavate or move large objects. An Excavator is basically made up of 2 parts: A driving base holding a powerful boom arm with an attachment designed for excavating. The operator sits within a small cab connected to the base and controls the arm.
The excavator uses a Hydraulic system to generate a Hydraulic force to control the mechanical arm of the machine. It also uses a chain wheel system for its movement.
There are several types of excavators which are classified on use, brand and purpose.

4. Hand-Held tools
These tools are your “go-to” for more precise work.
If you are just taking fixtures off the walls, or removing adhesive from a floor surface for example, hand held light demolition tools will do.
Bigger tasks like mass tile removal, concrete breaking and knocking down partitions, will require heavy duty power tools in many instances.



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About Shanna Knezovich

I started my journey with Leads 2 Business in 2013 as an Account Co-Ordinator. I transitioned into an External Sales position as an Account Executive in 2015. I help professionals within the building & construction industry keep up to date with the latest project and tender information as well as source new business opportunities throughout Africa.

Growth Strategies from an Expert

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Growth Strategies from an Expert

Growth Strategies from an Expert

I can honestly say that this time around I don’t feel too nervous about writing my blog even though I needed a bit of a nudge from a friend to get started…
I feel a lot more confident than last time as I did not have to google “blogging for dummies” and “how to write a blog”. Yes, I really did do that previously…😉

My blog today is Growth Strategies from an Expert. Well I am no expert that’s for sure but we are going to be looking at tips from the actual experts.

Growth Strategies from an Expert

Wouldn’t you agree that in order to successfully grow your business you need to ensure that you have a well-formulated growth strategy that fits the industry you have chosen? Both profitability and growth are equally important and necessary for a business to survive and remain operational. There is no set growth strategy, it is not a one size fits all kind of thing. Strategies that work for one business may not work for another business, but any business that commits to the process should see the benefits. It is imperative to take the time to prepare a growth strategy in order for business owners to successfully reap the benefits by recognising and seizing new opportunities ahead of the competition. Always remember that realistic strategies lead to positive results.


Let’s now look at 10 Growth Strategies from an Expert:

Growth Strategies from an Expert

1. Nail your value proposition
Ensuring your business sustains long term growth you need to establish what it is that makes your services / products better than your competitors. What sets you apart from them?

2. Create measurable KPI’s
Firstly, let’s look at what KPI stands for and what is means: Key Performance Indicator – A KPI is a measurable value that demonstrates how effectively a business is achieving key business objectives. KPI’s are used to evaluate their success at reaching targets. Ok… got it? So now that we have an understanding of what a KPI is, let’s look at how we can create measurable KPI’s. Start by outlining your business objective and make sure you prioritise them in order for your tactics and strategies to be identified so that they are measurable and not impossible in order to reach success.

3. Verify your revenue streams (income)
Recognise your current revenue streams and identify which new ones could be created in order to increase your business profitability.

4. Identify your customer
Identifying and knowing your customer is key for any business endeavour. Successful business owners understand what their customers want and the most effective way of making their product or service available. As a business owner, it is crucial to take every advantage to outsmart your competitor, and understanding and building upon your customer knowledge and relationship will put you ahead of the game.

5. Understand their key requirements
Customers needs and requirements are very important in business. Understanding their needs and ensuring they are happy will retain your customer base.

6. Make the most of existing business data
Look into your company data on a regular basis in order to better understand your business as well as your customer types which will lead to improved business growth.

7. Define the best communication strategies
Approach your audience and establish what is the most effective communication strategy, but this needs defining in a carefully-considered content marketing strategy. Adjust your communications to something that best suits your customer base.

8. Personalise your approach to retain leads
Let’s be honest here, without new customers, your business growth will remain stagnant. If your current customers aren’t sticking around, you’re having to do a lot more work. Your leads are the key to your business growth. So personalise your approach, not every customer is the same and some require more work.

9. Re-evaluate your competition
Never ever take your eyes off of your competition. Find ways and means to be better, this will help with growing your business.

10. Focus on your strengths
Focus on what makes you better than the competition, what sets you apart from everyone else. Identifying ways to grow doesn’t necessarily involve targeting weaknesses, focusing on strengths can also help establish the best strategies going forward. Adapt your plan to smooth out any weakness.

Growth Strategies from an Expert




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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.

L2B Golf Day

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L2B Golf Day

You’ve got to wonder if there’s any better way to spend a business day, than doing it on the green – deadlines, spreadsheets and the continual flow of emails far behind you as you line up to take your shot.

And so, with made-to-order weather at the picturesque Randpark golf club, the Leads 2 Business’ 13th Annual Construction-industry Golf day commenced.

This is the way to do it – meeting, greeting and interacting with construction-industry participants; there were over 70 unique businesses in attendance and more than 40 sponsored areas, the participants eagerly awaited their turn to entertain – golfers were spoilt for choice.

The course was dotted with splashes of colour, laughter and camaraderie – greens and tees were adorned with brightly coloured banners, heavy machinery, cranes, trucks and equipment; if it involved construction, it was there. Gazebos housed friendly promoters, welcoming golfers with a variety of drinks and snacks.
Sponsors and players alike came together with single minded intent to have fun and make a day of it!

Unique, out-of-the-box ideas abounded, including a single-story scaffolding deck for golfers to tee off from, the Hole-in-One competition with a brand-spanking new Audi Q5 for the taking, hoisted into the air by crane and dangling over the greens for all to see.
Stunning aerial shots were taken of the golfers, greens and the sponsored holes, whilst an assortment of competitions were held out on the field, to raise funds towards the chosen charity.

Our prize giving emcee was the fabulous ‘Vinnige’ Fanie de Villiers, who entertained us with jokes, drinks for numerous course offences and auctioned off items, including a stunning safari weekend, autographed 18th hole PGA flags and sporting goods, sponsored by Fanie himself.
Sponsors readily contributed, and the winning golfers got to take home some amazing prizes!

Edwin Pearce, the Warden from the Timbavati Wildlife Protection Programme’s (TWPP) anti-Rhino poaching unit, presented a moving speech that raised awareness on the plight of the Rhino; what they are up against and what it is they are doing to stem the rising tide of poaching.
Sponsor competitions on the day and the prize giving auction raised a significant amount of cash for the grateful TWPP warden and field sergeants.

Leads 2 Business initiated the golf day as a way of thanking our loyal supporters for their ongoing commitment and the L2B staff clamour to be part of this day; enjoying the opportunity to interact with their clients, and in the case of our KZN-based staff, the opportunity to put a face to a name.

With grateful thanks to all our esteemed Sponsors, Golfers and Subscribers who made this fantastic day possible – we at Leads 2 Business, thank you for your valued support:


A & R Investments
Akhane Construction
Asatico Civil & Construction
CarMix SA
CCS Computer Construction Software
Eco Life
Engineering News
Fidelity Group/ ADT
Franke SA
Ian Dickie
JK Drilling
MacDonald Steel
Macsteel Trading
Marlboro Crane
Master Builders Association North
Motheo Construction
National Asphalt
New Generation Rigging & Cranes
Prefab Sprout
ProBuild Construction Group
RMS Reinforcing & Mesh Solutions
Rollup Serranda
Rotork Africa
Sectional Poles
Sephaku Cement
Sika SA
Specialised Exhibitions
Spray Pave
Taucon Civils
Tekfalt Binders
Temi Construction
Timbavati – Bruce Jenkins
Umlani Safari’s
Uni-Span Scaffolding
VEA Road and WBHO



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About Lee Finch

I started my journey at Leads 2 Business in 2004 as an account executive. In 2006 I moved over to MAPRO (Marketing, Advertising and PRO), and in 2012 I became a Director. It’s exceptionally rewarding being a part of the Leads 2 Business team. I’m incredibly proud of the achievements and business ethos and I’ve always firmly believed we offer a valuable service, fine-tuned to our subscriber needs. I am a Mom of two beautiful children, a lover of human interaction, laughter and light, sprinkled with a generous dose of fun.

Building relationships to grow your business

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Building relationships to grow your business

Today is the kind of day where I wish inspiration came out of my shower. I’m no business owner and I don’t have any sort of marketing degree behind my name.

I can tell you however, that a business is only as good as the client it serves, and no business gets far after losing the clients it had.

I promise you that not all of my thoughts come from the shower.
I do think out of the box too.

The key to success is building relationships that go beyond one-time projects and provides value to these clients on a consistent, ongoing basis. You have to learn the rules of the game and then you have to play better than anyone else.

Building business relationships are not like any other relationship with a partner, No. It is much more than that.

Money can’t buy one of the most important things you need to build your business, Clients. You can’t have a million dollar dream with minimum work ethic.

How do customer relationships drive your business? It is all about finding people who believe in your product or service. How are you going to do this? You develop relationships with people who don’t just understand your particular expertise, product or service but who are excited and buzzing about what you do.

Relationships have a short shelf life. “There is nothing i can’t do, except reach the top shelf. I can’t do that.” Don’t be that guy! For crying in a bucket, get the ladder and reach the top. One of the biggest mistakes people make is that they come home from networking events and fail to follow up. Make the connection immediately, It’s easier to keep a connection warm than to warm it up again once the trail goes cold.

I would now like to share my knowledge on how to build client relationships:


When you make the right connections you’re much more likely to be a success. E-mail marketing keeps a work relationship strong on a shoestring budget.
Build a reputation by giving away free insight. Come on who doesn’t love free things?

Make the E-mail interesting and worth the read, most important make connection with the same people that shares the same interests and goals as you.




Reward loyal customers and they will reward you, for example the CEO at Leads 2 Business will host a lovely golf day for all our clients. Make them feel special and appreciated.
Once you show them, that appreciation they will be around for a very long time.


The saying, “Give and you shall receive” goes a very long way when it comes to this.




Own it, this may be the most difficult skill to master because it hits home morally and shows your human side. When something goes wrong you may have to take the bullet even if it wasn’t your fault or the company’s fault.

If it was you or the company that was in the wrong being respectful and honest shows vulnerability and the ability to take criticism that goes with being wrong.

Step in without being asked, it is easy to help when you are asked. Most people will. People who build client relationships pay close attention so that they can tell when others are struggling.

Offer to help, not just to build a good relationship with your client base, but because you care.

With all this said I would like to remind you to be authentic.

Be genuine. Be real.


Here is a quote for the day:

By being remarkable, being genuine, you can be worth connecting with. And you don’t have to have it all figured out perfectly the first time – you can adjust.

~ Seth Godin ~

If you are interested in becoming one of our subscribers, please visit our website.
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About Sonet Du Plooy

I started working at Leads 2 Business in 2014. I'm currently working in daily Tenders within the Africa department and I Love it!

700 000 Tender Notices Published

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700 000 Tenders

On the 28 May 2018, Leads 2 Business celebrated the publishing of our 700 000th tender notice.

And like the publishing of the 600 000th, the 500 000th and all the big milestone tenders that have come before; I laugh at how fleeting the moment is. In fact, between that moment and now; L2B has published an additional 2000 plus tenders. Being then asked to write a blog article on this occasion, seems a bit late to the party.

Were we surprised by hitting that number? No. We’ve been looking out for it for awhile. In fact, we were hoping to hit it the Friday before.

The fact is, we’d hit 700 000 at some point. It’s guaranteed, like death and taxes. So whether we publish one tender a day or 100 tenders a day; the milestones will come. Does that diminish the accomplishment? No. The accomplishment doesn’t lie in the number. It’s taken years to get to this point. Numerous staff, current and past, have contributed by doing what needs to be done. Getting the work in, and getting the work out.

The usual words bandied about concerning the publishing of tenders is monotonous, routine, repetitive. I can see you’re just chomping at the bit, to become part of this exciting and glamourous data capturing world. Like all things, it isn’t that straight forward or that simple.
I’m a huge advocate of “It’s not what you do; it’s how you do it”. How you do something speaks volumes, and that “how” can be applied to any aspect of your life.

When attempting to come up with an approach for this article, two words kept cropping up; namely “consistency” and “preparation”. Consistency gets a bad rap. It’s usually lumped in with the “repetitive” and “monotonous” crowd. There’s nothing exciting about being consistent, clearly. But that’s what 700 000 tenders represents; consistency. What we did yesterday, is what we have to do
today. And hoping against hope, that’s something to be proud of.

Now, I’m a creature of habit. I like routine, and cannot abide surprises. My skill set is better suited to thoughtful preparation, rather than “fly by the seat of your pants” recklessness (much to the chagrin of those I work with). So I recognise when my colleagues also show consistency in their work, recognise that it isn’t always an easy process. Being reliable in this day and age, is hard and rare.

Preparation comes from seeing the bigger picture. It isn’t only today, that needs to be handled. Coming in early, and skipped lunches, staying late, doubling up to compensate for Public Holidays and downed websites, supporting colleagues and actively carrying your own weight day in and day out. These decisions are made throughout L2B (in every Department) every day to meet targets, meet and even exceed expectations and strengthen our internal Culture of Excellence. Scoff all you want. But like I said; it’s not what you do, it’s how you do it. And quite frankly, if you want to be good at anything in your life; accept consistency and preparation and be better for it.


“Excellence is an art won by training and habituation.
We do not act rightly because we have virtue or excellence,
but we rather have those because we have acted rightly.
We are what we repeatedly do.
Excellence, then, is not an act but a habit”
– Aristotle.

So let’s see if our habits get us to 800 000 by February 2020.


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About Claire Donaldson

I started working at Leads 2 Business in February 2005, and have served as Head of Department of Daily Tenders from 2007 until the present. I oversee both the Daily Tenders South Africa and Africa Departments.

Building Business Relationships!

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Building Business Relationships!

Yes, yes we have all heard the above statement before. I am sure everyone within a business setting has had this drilled into their heads over and over.

So could we actually learn anything new??

Yes, of course we can……..


Let me start off by giving you a little insight into something I found recently.
As you know Facebook has become a great way of communication and branding worldwide and we all have close friends and colleagues that utilise this social tool to express their opinions and of course achievements.
One of my friends on Facebook had done exactly that with regards to a big sale he had closed and it caught my eye, especially being within a business environment any success story intrigues me.

He had expressed the fact that after a year of prospecting a potential client, with endless amounts of meetings, drinking coffee and sitting through conversations that had absolutely nothing to do with what he had to offer………



Wow, could you see yourself prospecting a client for a year?

This is when I knew building a relationship with a client does not start once you get your first order or sale, but it starts from the time you walk into that door to meet your potential client.


PEOPLE LIKE PEOPLE – Meeting a potential client for the first time should be the most important introduction you have going forward, people like what they see and how they interact with you. Being yourself and showing how intrigued you are with their business and what they have to say is the first step in building that business relationship you want.


TIME IS CRITICAL – I know in the business world the quicker you close the deal the better, but there are some of those potential clients that you know you need to just give a little extra attention to. Use that to your advantage by spending that small amount of time you have on making sure your business relationship gets stronger by each meeting. Ultimately once you get that first order your relationship is already there.


POSITIVITY – Although some conversations might end up side tracked from your initial intent of getting down to business, always try to make a positive statement back to your company and or product/service that you want them to hear. Positivity will continually sit in the back of the mind of the customer and they will then start to understand how great you are and how beneficial your product or service is for them.


EQUAL SUCCESS – Vital point in building that strong relationship, even though your customer is important to you and you want to continue ensuring you get business from them, also ensure that they know how important you are to them. Get them to understand that they need you and that they can rely on you at all times to get them what they need. Having that type of mind set will make for a long term business relationship that they nor you would like to see crack.


COMMUNICATION – Keeping all lines of communication open between you and a customer always brings a sense of security to the relationship, if these lines are crossed it could put pressure and strain on your relationship and ultimately put you in a situation where you might not be able to build up that relationship again or even take you a longer time. Clients like honestly and always ensure that you are straight forward to them, them being secure will ultimately make you and them happy.


RESPECT – Respecting one another in all aspects, personal and business is an important point that should always be considered, never step onto client’s feet that might cause tension between you two. Know your boundaries with a client either before or once a deal has been closed.


OFFERING – Although you are building this relationship to ensure future business, always offer your potential or existing clients some help where needed. Your knowledge into a sector of the industry that they might be battling with can always strengthen your partnership within the relationship. They know you have their back and only want them to succeed.


From reading the above, you should have gathered a better understanding that building a business relationship comes from the very beginning but does not stop.

Always find ways to strengthen this relationship as it can always grow and become stronger, but always keep in mind the boundaries and where you stand.

As it has always been said . . . .”IT TAKES TWO TO TANGO” , make sure you the first one that initiates this business relationship, it will only build up for a great future.




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About Ashlee Kelly

I am Ashlee Kelly and I have been with Leads 2 Business for a year and 3 months. Although new to the Company I have been in the construction industry for 4 Years. My passion is working with clients and ensuring that they grow their business in the right direction by getting involved in projects and tenders we can offer. I am a very out-going person with many characteristics, and love to help when a client needs any assistance.

The importance of maintaining equipment

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The importance of maintaining equipment


Construction equipment is a major investment, the machinery does not come cheap and neither is replacing it if the equipment breaks down.
Unfortunately, nothing lasts forever, however if you wish to extend the lifespan of your equipment, best you engage in preventative maintenance.
With preventative maintenance potential problems can be identified and repaired whilst still minor issues before they become major, costly repairs.
With regular servicing, machinery and equipment will be kept in tip top shape, items such as fuel and oil filters, spark plugs and belts need to be replaced regularly to ensure the smooth running of equipment.
Rubber belts deteriorate due to use and length of time, the rubber perishes. If the oil is not changed it becomes sludge which can damage the bearings and cause the engine to seize.




Lack of maintenance is a costly mistake, if the equipment is not maintained, it can lead to costly repairs and down time. With strict time lines to be adhered to, downtime could lead to unnecessary penalties.
Regular servicing enables the equipment to run efficiently and cost effectively, saving one money on fuel as the equipment will be fuel efficient. Equipment needs to be inspected regularly to check for wear and tear.
Should a part of the machinery not be running at its optimum it needs to be examined and repaired immediately before it causes further damage.

A preventative maintenance plan is essential to ensure that all equipment is kept in excellent operating condition. These can be based on operating hours or a set time period i.e. every 6 weeks.
In this economic climate, it is becoming common practice to ignore the problem in the hope that it will go away.

Being a mechanic’s daughter I have learned the importance of preventative maintenance as opposed to crises maintenance, the benefits far outweigh the costs of the repairs and the unnecessary downtime.

So don’t delay get your preventative maintenance plan in place today, it will save you money in the long run!


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About Debora Keet

I started working for Leads 2 Business in January 2006 as a Private Projects Researcher and have been in the Administration and Human Resources department since October 2008 until present.

What they are, how do they work and what are they used for?

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What they are, how do they work and what are they used for?

I am pretty sure most of us have driven past a construction site and wondered what the various machines are used for. Some are humongous!
Those are the ones that require those traffic-slowing “abnormal loads” that we pass now and then on the highway. I always look at the machines being transported, and try to imagine what they do.
To solve a bit of the mystery for some of us, I have gone on a research mission to determine the names and uses of five construction machines that I think could be of interest.


Articulated Haulers

This type of machine is also known as an articulated dump truck (ADT), and is capable of traversing tough terrain.
These dump trucks are used for the removal of earth or construction rubble, among other types of materials, and have also been effective for snow removal. In an extreme situation, Linco Construction in Texas used their articulated haulers to evacuate victims of a Hurricane






Dragline Excavators

Dragline excavators are often used in road and underwater excavation, and in surface mining.
The heavier types of dragline excavators usually have to be assembled on site. These machines use a bucket and rope system to gather materials and dump them.







Sheepsfoot Rollers

The purpose of a sheepsfoot roller, which is also known as a tamping roller or padfoot roller, is used for soil compaction.
A typical sheepsfoot roller is made up of a drum with stud-like protrusions covering the surface of the drum. These studs can be manufactured in different sizes, depending on the type of soil that is to be compacted.







Cold planers

Cold planers are used to remove the surface of paved areas – a process known as milling. These milling machines grind the surface of, for example, a road (asphalt), in order to lay new asphalt, or to smooth out the road surface.
Milling allows for the road surface to be recycled, making it a positive factor in ongoing efforts to curb negative impacts on the environment.
Cold planers use a milling drum to cut the paved surface. Tool holders, which are attached around the drum, hold cutting tools which cut the pavement.
The milled materials are held in the machine’s scrapper, and then transferred from the cold planer, using a conveyor belt, to another vehicle to be transported from the site.






Tower Cranes


Cranes are often the first construction machines that we see, even when the site is not in plain sight – see what I did there 😉 These are very tall machines, which are used to lift various types of materials, in order to place them where they are required.
A typical tower crane consists of a base, mast, slewing unit, machinery arm, counter weights and an operator’s cab. The base of the crane is secured to a concrete pad, which provides support. The tower section (or mast) gives the crane height, and is connected to the base. The slewing unit houses the motor which allows the crane to rotate, and also includes a working arm (longer horizontal section), machinery arm (shorter horizontal section) and counter weights. The crane operator manoeuvres the crane from the operator’s cab.





During my research into this topic, I have enjoyed learning more about some of the machines that I have seen, but knew nothing about.

I do hope that next time you pass a construction site, and you see some of the machines that I have mentioned, that you will have a better understanding of their purpose.




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About Bianca Warwick

I had the privilege of joining the Leads 2 Business content team in January 2012. I work in the exciting Projects department, following the progress of construction developments in KwaZulu-Natal and the Free State.

Under Water and Marine Construction

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Under water construction

Under water and Marine Construction

So whilst many of us think of underwater construction we think of it as a more modern building technique and we think of all the construction in Dubai, however in fact underwater construction actually dates as far back as to 23 BCE where Roman builders constructed the largest artificial harbour ever built in the open sea to date. Caeserea Maritima, where the remains can still be found.

Under water and Marine Construction

We then have more modern examples of underwater construction like Lake Kariba where construction started in 1955 and was completed in 1959 and cost around 480 million USD.
We also have the world’s first underwater hotel built of the coast of Key Largo Florida which was actually a research facility dating back to the 1970’s La Chalupa Research Laboratory which has been converted into a hotel, named Under The Sea Lodge which opened it’s doors to guests in 1986. This building is completely underwater and is only accessible by scuba diving more than 6 meters down and gaining access via a “moon pool” which is located under the building.
We then have the mega structures in Dubai where they have taken underwater construction to new depths constructing islands and underwater hotels and water theme parks like The Palms and Atlantis.

Under water and Marine Construction

So how does one actually build underwater?
Well you have to firstly create a stable and dry environment in which to build in order to work in the environment and place concrete in it.

We have basically two different methods / techniques in which to build underwater.
Firstly we have Cofferdams, which are temporary structures normally used where the construction area is larger and the water depth less, you also get different types of cofferdams.

  • Earthen cofferdams,
  • Doubled Cofferdams
  • Rockfill Cofferdams
  • Single walled Cofferdams
  • Crib cofferdams
  • Cellular cofferdams

Cofferdams are normally used for constructing bridge piers and other supporting structures

Then you get Caissons which are more permanent large hollow watertight structures which are used for repairing bridge foundations and dams.

Under water and Marine Construction

You also get different type of caissons, namely:

  • Box Caissons
  • Open Caisson
  • Suction Caisson
  • Pneumatic Caisson

A good example of construction using Caissons is the Port of Ngquru just outside Port Elizabeth, which used 5 Caissons anchoring the ends of the breakwaters which required 18 000m³ of reinforced concrete.

So whilst there are different types of underwater construction it remains quite a complex and challenging construction method testing the boundaries of construction in general.


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To view notes with screenshots on how to use our website, please visit our Wiki site.
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About Jennifer Ellis

I Started working with Leads 2 Business in 2007 and been based in Port Elizabeth as a Senior account Executive. I oversee the Subscriber base in the Port Elizabeth and surrounds region as well as some National subscribers.


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Demolition is the destruction, knocking down, pulling down, tearing down, flattening, razing, levelling, bulldozing, clearance, obliteration and annihilation of buildings and other man-made structures, however, it has been known that when one is stricken with immense hunger, one can demolish a whole pizza in one sweep.

Demolition contrasts with deconstruction, which involves taking a building apart while carefully preserving valuable elements for re-use purposes.

Demolition Plan:
For small buildings, such as houses, that are only two or three stories high, demolition is a rather simple process.
The building is pulled down either manually or mechanically using large hydraulic equipment: Elevated work platforms, Cranes, Bulldozers, Backhoe Loaders & Hydraulic Excavators.


Backhoe Loaders

Basic workhorse machine that allows for multiple attachments.
Short reach machines.
Can work in moderately small areas

Hydraulic Excavators

They provide for longer reach and power.
A step up from the backhoe.



Larger buildings may require the use of a wrecking ball, a heavy weight on a cable that is swung by a crane into the side of the buildings. Wrecking balls are especially effective against masonry but are less easily controlled and often less efficient than other methods. Newer methods may use rotational hydraulic shears…

Used for cutting steel, cable and rebar and silenced rock-breakers attached to excavators to cut or break through wood, steel, and concrete. The use of shears is especially common when flame cutting would be dangerous.

For larger buildings or structures, however, it is imperative to make sure there is a plan in place. One thing about construction projects is that just as they went up, someday they must come down.

When that day arrives and the building has become unsafe or just seen better days, it’s time to call in the demolition experts.

First they need to assess your needs as there are many different factors involved in a building demolition and several different ways to go about it. Once your needs are determined, a plan is created. The plan will include how the demolition is to be carried out as well as all the equipment that will be used to do it. The ultimate goal is to get the building demolished in the safest and most efficient way possible. These decisions will depend on the size of the building, the building materials, the reason for the demolition and the location of the building.

Some methods that will be considered include:

1. Implosion

Large buildings like the World Trade Centre, tall chimneys, smokestacks, bridges, and increasingly some smaller structures may be destroyed by building implosion using explosives or terrorist trained pilots. Imploding a structure is very fast—the collapse itself only takes seconds—and an expert can ensure that the structure falls into its own footprint so as not to damage neighbouring structures. This is essential for tall structures in dense urban areas.

Any error can be disastrous, however, and some demolitions have failed, severely damaging neighboring structures. One significant danger is from flying debris, which, when improperly prepared for, can kill onlookers.

Another dangerous scenario is the partial failure of an attempted implosion. When a building fails to collapse completely the structure may be unstable, tilting at a dangerous angle, and filled with un-detonated but still primed explosives, making it difficult for workers to approach safely. A third danger comes from air overpressure that occurs during the implosion. Stephanie Kegley described shock waves by saying, “The shock wave is like a water hose. If you put your hand in front of the water as it comes out, it fans to all sides.” When cloud coverage is below 1,200 feet, it reacts like the hand in front of the hose. The wave from the shock fans out, instead of up toward the sky. If the sky is clear, the shock wave, a wave of energy and sound, travels upwards and disperses, but if cloud coverage is low, the shock wave can travel outwards, breaking windows or causing other damage to surrounding buildings.

Controlled implosion, being spectacular, is the method that the general public often thinks of when discussing demolition; however, it can be dangerous and is only used as a last resort when other methods are impractical or too costly

2. Deconstruction

A new approach to demolition is the deconstruction of a building with the goal of minimizing the amount of materials going to landfills. This “green” approach is applied by removing the materials by type material and segregating them for reuse or recycling. With proper planning this approach has resulted in landfill diversion rates that exceed 90% of an entire building and its contents in some cases. It also vastly reduces the CO2 emissions of the removing of a building in comparison to demolition.
Timber waste can be shredded using specialist timber shredders and composted, or used to form manufactured timber boards, such as MDF or chipboard.

3. Selective Demolition

This is used rather than flattening structures in one fell swoop which maximizes efficiency by reducing waste, repurposing reusable materials, and lessening environmental impact. This approach works hand in hand with Deconstruction.

Carrying out the plan
Once the plan is set, the demolition company will know the method, the equipment that’s necessary, the approximate cost, how much debris there will be, how it will be dispersed at the site and how long it will take to clean up. Back up plans and emergency plans will also be part of the overall demolition plan. After the plan has been finalised the company must get all necessary permits so they are safe when the demolition is carried out.

Like any job before the fun stuff begins there’s the preparation work that needs to be done and so site preparation is just as important as the demolition itself. The building must be completely cleaned out of the utilities like gas, water and electricity as well as the removal of hazardous materials.

After it’s all planned, legal aspects are covered and the site is ready, the demolition is scheduled and carried out. To some people seeing a building demolished is a thing of beauty.

The co-ordination and expertise that goes into pulling it off just right is truly staggering. In a lot of ways the building going down isn’t really an ending but a new beginning…




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About Helga Venter

My name is Helga Venter. I started with the company in 2004 and was promoted to Financial Director in 2007.

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