Common Causes of Construction Delays

posted in: Did You Know 0

Common Causes of Construction Delays

Did You Know?

Common causes of Construction delays
What is construction delay?
In construction projects, as well in other projects where a schedule is being used to plan work, delays happen all the time. It is what is being delayed that determines if a project, or some other deadline such as a milestone, will be completed late.

Construction delays can be very costly and can reduce your company’s turnover, in a worst case scenario your firm could be ruined by liquidated damages. Liquidated damages is a sum of money (agreed-to and written into a contract) specified as the total amount of compensation an aggrieved party should get, if the other party breaches certain part(s) of the contract in this case if a work delay cost your client money. It also gives your company a bad image showing you are disorganized and unprofessional, and the client could even give your company a bad reference and word of mouth travels very fast ruining your company’s name which you definitely do not want.

Your company can try to avoid some type of construction delays by recognizing their most common causes and working to mitigate those factors before they take effect.
Planning is crucial so you better have a good project manager, you’ll also need to depend on analytics and close oversight to determine when things are falling behind and make the right decisions to keep your project on track.

Here are the 5 most common causes of construction delays
Poor Weather
Oh yes mother nature, the weather is something we can predict but it’s not so predictable if you get what I mean. Yes we have a weather forecast to assist with the planning of our projects but it can change at any time.
Unfortunately you won’t be able to use the weather as an excuse if you are busy with indoor renovations and running behind on schedule.
For outdoor projects, however, poor weather like rain or snow can leave you way behind schedule, threatening your already-slim profit margins with each passing day.
Any one want to take a dip?….. In a mud hole that is! If you’re busy with an excavation project and there’s some rain a freshly dug hole can turn into a mud pit ready to swallow an excavator or any other machine you drive into it. Hungry much?
And no high rise construction or roof is going to get done with high winds. Good luck to you if mother nature is very angry, because there’s no end to the delays that can result from flooding, or worse, a Tornado or Hurricane.


You’ll have to build allowances for natural disasters into your contracts to ensure that you don’t end up paying liquidated damages because of a storm. Rescheduling activities like concrete pours in accordance with the weather schedule is also a good idea, and you should always keep water pumps at a job site so you can dispose of any water that accumulates and gets in the way.

Budget and Resource Shortages
No more funds available…..eeeeek
Running out of money is a very bad scenario for a construction firm that’s in the middle of a project, especially when the client has already paid and you’re digging into your own pockets to get the job done.

It is important that construction project managers have access to costing software that will not under cost projects and put a company in the red. One must be well informed about updates on the firm’s financial health in order to ensure that projects don’t eat up the budget.
Banks can also be flexible with providing loans, especially if you’re an established firm with collateral to offer. This last resort works well if you need your hands on some cash to purchase the last materials for a project, pay workers, and avoid a costly delay.

Overbooked Crews
Check your diary ! Over booking projects and firms taking on more than they can chew can end up with projects falling behind as their exhausted employees drive around from job to job each day trying to get everything done.
It’s great to be ambitious about your goals, but everyone has limits, and you may find that hiring more crews lightens the load for everyone, avoids delays, and keeps morale higher throughout your firm.

Unreliable Subcontractors
Time is money.
Workers that waste time on the job are a plague not only in the construction business but any industry.
One may not always be to blame as they may lack the tools, training or experience that’s needed to get the job done efficiently, but on the other, they may spend too much time chatting, on a coffee break or even better a chocolate break and lose focus on the importance of timeliness on the job.

It’s important to invest in full-time employees making sure they know the processes and what’s expected of them, and hold them accountable for producing results on a daily basis. If you set high standards and don’t allow excuses, you’ll see how quickly production increases. You will surely reap what you sow.
Having the right equipment is very important as well, this being said the maintenance of these plant and machinery is imperative.

Unexpected Changes
Unexpected changes are always going to be a part of the construction business. Sometimes a requirement for the project emerges that was different from what was expected, and sometimes the customer asks for something extra and it isn’t possible to say no.

Managing expectations is the crucial skill when it comes to building unexpected changes into your schedule. Let the client know about the change, why it’s needed, and what kind of delay it will cause. If the client requested the change, let them know that a deadline extension will be required in order to make it happen, or suggest a bonus for incorporating the change into the existing work schedule.

 

Sources:
Image 1
Image 2
Image 3
Image 4
Esub
Wikipedia

To view more articles, please visit the Leads 2 Business Blog.
If you are interested in becoming one of our subscribers, please visit Leads 2 Business.
To view notes with screenshots on how to use our website, please visit the Leads 2 Business Wiki.

About Sharika Raman

I have worked for Leads 2 Business from January 2015 till present. I work for the Leads 2 Quotes Department for Directory and Control List.

Our Mining Heritage

posted in: Did You Know 0

Our Mining Heritage

The beautiful month of September not only marks the beginning of Spring, it is also the month devoted to Heritage.

A country’s natural heritage is its natural resources and beautiful environment, because they are considered to be so unique that they are internationally respected and protected.

South African heritage, might be anything from famous stretches of coastline in Kwazulu-Natal, to shweshwe fabric, to Bunny Chow or Potjie. But for now lets take a look at our mining heritage and history.

Mining in South Africa was once the main driving force behind the history and development of Africa’s most advanced and richest economy.

Did you know:

South Africa is the world’s largest producer of Chrome, Manganese, Platinum, Vanadium and Vermiculite.

Platinum and Palladium:
South Africa produces more platinum and similar metals than any other country.
In 2005, 78% of the world’s platinum was produced in South Africa, along with 39% of the world’s Palladium.
Over 163,000 kilograms of platinum was produced in 2010, generating export revenues of $3.82 billion USD
Currently Russia and South Africa are the biggest palladium producers in the world.

  • South Africa is the second largest producer of Ilmenite, Palladium, Rutile and Zirconium.
  • South Africa is also a huge producer of Iron ore: In 201 2 it overtook India to become the world’s third-biggest iron ore supplier to China.
  • South Africa has the second-largest reserves of uranium in the world.
    (NUFCOR) (The Nuclear Fuels Corporation of South Africa) started processing Uranium as a by-product of gold mining in 1967.
    Most of the uranium produced is concentrated in the golf fields of the Witwatersrand area.

 

  • South Africa’s production of chromium accounted for 100% of the world’s total production in 2005, and consisted of 7,490,000 metric tons of material.

Chromium is used in stainless steel and for a variety of industrial applications.

  • South Africa is the world’s third largest coal exporter.
    Much of the country’s coal is used for power production as 77% of South Africa’s energy needs are provided by coal.

Gold
Gold was discovered in the area known as Witwatersrand, triggering what would become the Witwatersrand Gold Rush of 1886.
South Africa accounted a percentage of 15% of the world’s gold production in 2002 and 12% in 2005, though South Africa has produced as much as 30% of world output as recently as 1993.
Despite declining production, South Africa’s gold exports were valued at $3.8 billion USD.

  • It was estimated by US Geological Survey in that as of 2002, South Africa held about 50% of the world’s gold resources, and 38% of reserves.

 

“Diamonds are a girls best friend”

Did you know:
Diamonds are valued by weight, colour, clarity and various other factors.
The first diamond was discovered on the banks of the Orange River in 1867 by Erasmus Jacobs.

  • Of “The 10 Largest Diamonds Ever Discovered” – Four are from South Africa!

The Jonker: 726 carats
This giant stone, was found by a settler called Johannes Jacobus Jonker in 1934.
It’s believed the rough diamond was cut into 13 smaller stones, with the largest diamond, the Jonker I, still weighing in at an incredible 142.9 carats.

The Golden Jubilee: 755 carats
The golden Jubilee was discovered in 1985, it was eventually cut and faceted diamond that weighed an enormous 545.67 carats, making it the largest finished diamond in the world.
It is currently owned by the Royal Family of Thailand.

Excelsior Diamond: 995.20 carats
Was Found in 1893 in Jagersfontein Mine, this huge rock was cut into many smaller pieces. The largest gemstone cut from this famous diamond was 69.68 carats.

Cullinan Diamond: 3106.75 carats
The Cullinan, was discovered by a mining superintendent in old Transvaal in 1905.
Also known as the Star of Africa, this is arguably the most famous diamond in the world.
Weighing more than three times the weight of the Excelsior Diamond, it was named after the owner of the mine, Sir Thomas Cullinan.
It was given as a gift to the King of the United Kingdom (Edward VII). Nine large stones and 96 stones were taken from the rough diamond, including the famous Star of Africa (Cullinan I) which is 530.2 carats and is now part of the Crown Jewels, inserted into the Sceptre with the Cross.
The value of the Cullinan diamond has been estimated at $2 billion.

 

We live in one of the most beautiful and most resourceful countries in the world.

As former President Nelson Mandela stated:
“When our first democratically-elected government decided to make Heritage Day one of our national days, we did so because we knew that our rich and varied cultural heritage has a profound power to help build our new nation.”

 

Lets choose to acknowledge, respect, and celebrate our culture and the diversity of beliefs and traditions to rather use this power to promote peace and to build a stronger nation. 

Sources:
Wikipedia
Mining Review

 

To view more articles, please visit the Leads 2 Business Blog.
If you are interested in becoming one of our subscribers, please visit Leads 2 Business.
To view notes with screenshots on how to use our website, please visit the Leads 2 Business Wiki.

About Wendy De Wet

I joined Leads 2 Business as an Account Executive in July 2011 and was part of the dynamic sales team in JHB for 2 years. I relocated to the beautiful city of Durban in 2013 and absolutely love KZN. I am very proud to be part of the L2B family and Legacy!

Precious Gems and Stones in South Africa

posted in: Did You Know 0

Precious Gems and Stones in South Africa

Not the usual blog you would find in our industry. Just a tad different with interesting thoughts and insights you might not have ever thought about before.

All the bright images of these “bling’s” comes to mind from beauty and great riches for so many centuries.
Come to think about it gemstones have long fascinated the human population. Not only to be used as investments by the rich, who used to show off the red rubies, shiny diamonds or the enormous emeralds to display wealth, status and power owned only by the royalty. People have treasured gems for many reasons throughout history.

Believe it not, the gems and stones inspired myths, curses and has been used as medicine before. Religious symbols, amulets and good-luck charms are one of the most known reasons today. Ancient people believed that certain gems would protect them from misfortune, illness and unhappiness. All the gemstones we so greatly treasure and admire come from various depths and locations in the earth’s crust.

I can write forever and a day about all the different stones and gems and all the superstition symbols of hope, luck, and many more. But can’t help myself to name the most obvious.
The number twelve is common in gem lore. Twelve gems that represented the twelve tribes of Israel were set in the breastplate of Aaron, the first high priest of the Hebrews. Among Christians, symbolic gems represented the twelve apostles.

The Twelve Tribes The Twelve Apostles
1. Levi, garnet Peter, (Jasper)
2. Zebulon, diamond Andrew, (Sapphire)
3. Gad, amethyst James, (Chalcedony)
4. Benjamin, jasper John, (Emerald)
5. Simeon, chrysolite Philip, (Sardonyx)
6. Issachar, sapphire Bartholomew, (Sard)
7. Naphtali, agate Matthew, (Chrysolite)
8. Joseph, onyx Thomas, (Beryl)
9. Reuben, sard James the Less, (Topaz)
10. Judah, emerald Judy, (Chrysolprase)
11. Dan, topaz Simon, (Hyacinth)
12. Asher, beryl Judas, (Amethyst)

In addition, gems have long been associated with the signs of the zodiac and with the sun, moon, and planets.

Signs of the Zodiac
Aries the ram, (Bloodstone)
Taurus the bull, (Sapphire)
Gemini the twins, (Agate)
Cancer the crab, (Emerald)
Leo the lion, (Onyx)
Virgo the virgin, (Carnelian)
Libra the scales, (Chrysolite)
Scorpio the scorpion, (Aquamarine)
Sagittarius the archer, (Topaz)
Capricorn the goat, (Ruby)
Aquarius the water bearer, (Garnet)
Pisces the fishes, (Amethyst)

Did you know that the most expensive gemstone ever sold was the Pink Star Diamond that was sold for $83 million? Also known as the ‘Fancy Vivid Pink’ diamond, this stunning gemstone was mined in 1999 in South Africa, with a weight of 59.6 carats. Because of the selling price of $83 million, this diamond became the most expensive gem ever sold.

Did you know that Queen Elizabeth crown that she has worn for 63 years also has a diamond in from South Africa? Weighing a breath-taking 3 106 carats, this diamond was discovered in 1905 by Pretoria’s Premier Mine inspector, Thomas Wells, who initially mistook it as a piece of glass placed by the miners to prank him.
When its identity was revealed, the diamond was named The Cullinan after the owner of the mine and purchased by the Transvaal government as a gift for King Edward VII. Then plans were made to have the precious diamond shipped to England on a boat, always protected by top security. However, it was later revealed to be an elaborate ruse created to fool any hopeful thieves – the Cullinan was in fact sent to England in the mail, with no security whatsoever.
Did you know in 1867 South Africa’s first diamond, later called the Eureka, was discovered on the banks of the Orange River near Hopetown by 15-year-old Erasmus Jacobs. He was playing around on his father’s Northern Cape farm at the time and a pretty transparent rock caught his eye. It was a neighbour, Schalk van Niekerk, who identified this ‘rock’ as a diamond.

So where do gems come from?
Most gemstones are minerals or rocks and occur in favoured sites in the earth’s crust or in the gravels that result from the weathering of rocks. Of the beautifully crystallized minerals that seem useful for gems, only a very few meet the standards and are sufficiently beautiful, durable, rare and large enough to be cut into saleable stones. As a class of natural objects gemstones are exceedingly rare.

About one hundred chemical elements make up the earth. Oxygen and silicon are by far the most plentiful elements in the earth’s crust, and they occur in most minerals. In gemstones, they are major ingredients in amethyst, aquamarine, emerald, garnet, peridot, topaz, tourmaline and zircon. Oxygen is a major ingredient in ruby, sapphire, chrysoberyl and spinel.

As a mineral form, certain atoms attract each other and arrange themselves in an orderly geometric pattern called the crystal structure. All mineral crystals have their atoms arranged in some combination of fourteen basic patterns.

Minerals usually occur as crystalline grains in rocks. Because the grains compete with neighbouring ones for very limited space, there usually isn’t room for complete crystal shapes to form. Time is another important factor in crystal growth. When molten rock cools quickly, natural glass or tiny crystals form. Slower cooling time gives larger crystals time to grow. Large crystals may form whenever conditions are right. They may grow slowly into open spaces in cracks or hollows in the rocks.

Occasionally, near perfect crystals are found. A mineral’s internal atomic structure determines its distinctive exterior crystal shape. Crystal shape often helps identify and distinguish gem minerals from one another.

Today, many gems can be created in laboratories. Synthetic gems have the same chemical composition and physical properties as naturally formed gemstones. A simulated gem may look like a natural gem, but there the similarity ends.
As with other gems, most precious gemstones are minerals. This mineral, however, is a chemical element or compound that forms in nature and possess a unique internal atomic structure, crystal. Minerals usually form because of inorganic processes that occur in rocks.

Furthermore, since mineral deposits can be found all over the world, so can the various gemstones.

In fact, many gems and stones come from South Africa and this is the reason why the industry remains sturdy.
Of some interest is the mining techniques used to procure such brilliant gems.

The following is a list of South Africa gems and minerals listed in our database:

• Chatoyant Quartz
• Enstatite
• Rhodonite
• Grossular Garnet
• Rhodochrosite
• Petalite
• Platinum
• Plasma Chalcedony
• Diamond
• Chrysoprase
• Microcline
• Uvarovite
• Gold
• Zoisite
• Chrysoprase
• Diopside
• Chrysoberyl
• Pyrope
• Phosphophyllite
• Labradorite
• Dravite
• Taaffeite
• Rutile
• Tugtupite
• Lapis Lazuli
• Turquoise
• Sillimanite
• Oligoclase
• Spodumene
• Gypsum
• Tektites
• Shell

 

If you are interested in buying gemstones in South Africa you need to look out for the following:

How to buy gemstones in South Africa
1. Look at the background of the seller!
2. Look at the credentials of the seller!
3. Study the gemstone.
4. Is the gemstone from South Africa or not?
5. Check the integrity of the seller.

 

To view more articles, please visit the Leads 2 Business Blog.
If you are interested in becoming one of our subscribers, please visit Leads 2 Business.
To view notes with screenshots on how to use our website, please visit the Leads 2 Business Wiki.

 

References:
Cape Town Diamond Museum
Rock Hounds
Touch Gemstones
Gemrock Auctions
Cape Town Magazine
Interflora
Gem5
Diamond Portfolio
SAMAA

 

 

 

About Christine Smith

My journey started in 2015 with Leads 2 Business, as an Account Executive, and gradually grown to take the role of being the Client Liaison Office (CLO) since 2018. Assisting in the delivery of our services and insuring our clients expectations and requirements are exceeded.

What does Google mean to me?

posted in: Did You Know 0

What does Google mean to me?

The title made me giggle…it should say “what does Google not mean to me?”

Google is my “go-to person” for EVERYTHING that I am looking for information about, be it something I already know, or want know, or need confirmation about, or to settle an argument, anything and everything, there is pretty much nothing that Google cannot help you with.

The above got me thinking, Google has always just been “there” and I have never really thought about how it got its name, how the information gets there (for me to find) and what it all means…hmmm…this means I get to do some research (on Google of course)….

How Google did gets its name?

Turns out Google was born from a spelling mistake! What? The Grammar-nerd firmly instilled in me was horrified, turns out that Google is a misspelling of a real-life mathematical term, googol.

Back in the late 90’s, Larry Page and Sergey Brin were working on a search engine and they had called it “Backrub”……thank goodness they were smart (they were grad students at Stanford after all) and went on a brainstorming session to rename their search engine and with the help of a fellow student Sean, came up with the name “Googolplex”.

Googolplex is the name for 10 to the power of googol. Googol is the name used by mathematicians to reference 10 to the power of 100 or the number 1 followed by 100 zeros. (The name googol and googolplex were originally coined by Milton Sirotta, nephew of Edward Kasner, a famous American mathematician)
When Sean suggested googolplex, Larry thought that the term googol was better and thought that the definition of the word was a great fit for what they were trying to do which was to index an unfathomable number of Internet web pages.

Sean, not realizing googol was spelled with an ol at the end, searched the Internet to see if the domain google.com was available. Larry liked the new word Sean had accidentally come up with, and voila! Google was named.

How does Google find what I am looking for?
Google has several steps that they take in order to find and collate their information (so that you and I can find it easy-peasy)

1. Spiders/Crawling as much of the web as they can.
SPIDERS!!!! that is just creepy and I had an instant visual of an old movie from 1984 starring Tom Selleck called Runaway that had all these hundreds of little killer robots in the shape of spiders (shudder) running around but thank goodness my Arachnophobia is unfounded, it’s not that type of spider (cue nervous giggle) Google has millions of servers spread out across the globe and these are used to crawl, index and power Google’s search engines and are constantly trying to find new pages and check existing pages for updates. A search engine spider does the search engine’s grunt work: It scans Web pages and creates indexes of keywords. Once a spider has visited, scanned and categorised a page, it follows links from that page to other sites. The spider will continue to crawl from one site to the next, which means the search engine’s index becomes more comprehensive with endless amounts of information.

2. Indexing the information that has been sourced.
Google has an index of 100 000 000 gigabytes (might actually be more by now) and that a LOT of data. On the pages that are indexed, Google will select pages or words which are relevant to the site, this is automated and determined by all kinds of metrics including how often a website is updated, what is the theme of the website etc.

3. Determining how the information should be ranked
Google uses a trademarked algorithm called PageRank, which assigns each Web page a relevancy score. A Web Page’s “PageRank” depends on the following (a) the frequency and location of specific keywords e.g. if a keyword only appears once, this webpage will get a low score for that keyword. (b) How long the web page has existed e.g. hundreds of new web pages are created daily and sadly some of them have a very short lifespan, Google places more value on a page that is active and has an established history. (c) How many other web pages link to your webpage
Well!! It seems that Google is a very, very busy search engine that is constantly looking for new information just to please me….and I am very grateful. My life without Google would be ‘informationless’, boring and unfathomable.

Google Quotes that ‘spoke’ to me:
Google is arguably one of the greatest inventions. The search engines is one of the greatest human inventions – Franklin Foer (I hear you Frankie……Google is the best!)
People at different stages of their lives are doing different things, and they all using Google – Susan Wojcicki (So true Susie, I would be lost without Google)
If it isn’t on Google then it does not exist – Jimmy Wales (Jim, I believe it!)

I found a new love in Google. I’m a Googler now – Alan Mulally (Al, you and me both, been in love with Google for a while now, I’m a Googler too!)

Sources:

Skill Crush
Quora
How Stuff Works
Brainy Quote

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.

Awesome Internet Facts

Awesome Internet Facts

I’ve heard you love fun facts!

Well, here are some of the best! – I hope you will have as much fun reading through them and learning something new as I did while researching materials for this post.

1. A little over forty years ago the internet was invented in a beer garden. In fact, it was founded on August 27, 1976 on a picnic table at Rossotti’s (or Zott’s) Alpine Inn Bear Garden – who says the best ideas don’t come over a drink 😉

2. The name Google was created accidentally. A spelling error was made by the original founders who were under the impression they were going for Googol.

3. The first computer mouse was invented by Doug Engelbrecht and it was carved from wood First Computer Mouse

4. As of 1st January 2018, the total internet users across the world was 4,156,932,140 (that’s over 4 billion users). While the average internet speed across the globe is 5.6Mbps, in the USA it is 18.8Mbps.
The country with the fastest internet speed is South Korea with an average Internet speed of 26.7Mbps!


5. Google is the most popular website in the world. YouTube is second and Facebook is third.

6. The first tweet was sent on March 21, 2006 by Jack Dorsey:


7. Mark Zuckerberg’s original Facebook profile number ID is 4 – https://www.facebook.com/zuck – The first three Facebook accounts were for testing.

8. The first YouTube video was uploaded April 23, 2005. It’s called Me at the Zoo

9. The GIF format was invented by Steve Wilke, an engineer at Compuserve in 1987.

10. Today, the Internet is 10,753 days old. Check How old is the Internet

11. This is what Google looked like in 2004:


12. Google rents out Goats to help cut down the weeds and brush at Google HQ – Google Blogspot

13. The first smiley appeared in 1979, when Kevin McKenzie tried to express his emotions by electronic means. First it look like this -) Three years later, Scott Fahlman added a colon : -) and it took the form we are used to.

14. The first AOL Instant Message was sent by Ted Leonsis to his wife on Jan. 6, 1993. It read, “Don’t be scared … it is me. Love you and miss you.” His wife replied, “Wow … this is so cool!” Leonsis later became AOL’s Vice Chairman.

15. The first sentence uttered on Skype was in Estonian in April 2003 by a member of the development team. It was ‘Tere, kas sa kuuled mind?’ or “Hello, can you hear me?” in English.

16. The very first domain name registered was www.symbolics.com on the 15th March 1958.

17. Domain name registrations were free till 1995.

18. Anthony Greco was the first man ever arrested for sending spam messages in 2005.

19. The first picture ever uploaded on the web was posted by Tim Burners Lee (inventor of the World Wide Web) on behalf of a comedy band called Les Horrible Cernettes.


20. The world’s first website is still online – Info.cern

21. The first webcam was deployed at Cambridge University computer lab – its sole purpose to monitor a particular coffee maker and avoid wasted trips to an empty pot.

22. The Internet took just 4 years to reach its first 50 Million Users.

 

It’s amazing how little we know about something we use for more than 10 hours a day! – We’re just scraping the surface when it comes to incredible facts about the Internet, but now you can go and dazzle your friends with your new-found knowledge.

 

Do you know of any other fun and interesting facts about the Internet? If so, let us know about them in the comments!

 

Sources:
Life Hacks
Buzz Feed News
The Fact Site

To view more articles, please visit the Leads 2 Business Blog.
If you are interested in becoming one of our subscribers, please visit Leads 2 Business.
To view notes with screenshots on how to use our website, please visit the Leads 2 Business Wiki.

About Chantélle Naudé

I have been with Leads 2 Business for 9 years, working in the Leads 2 Quotes department. Mother to two beautiful daughters.

3D Concrete Printing

posted in: Did You Know 0

3D Concrete Printing


Wow…so looking at pictures of 3D concrete printing, I was like:

Is this even possible…and yes, it is.
So let’s have a bit more of an in depth look at exactly what 3D Concrete Printing entails.

Definition: 3D Concrete Printing refers to various technologies that use 3D printing as a core method to fabricate buildings or construction components.


So basically, construction units such as walls or columns can be pre-fabricated off site by means of 3D printing. The completed wall parts will then be transported to the construction site, installed on traditional foundations and reinforced with traditional steel structures or cement. The unpolished walls can then be supplemented with different finishes.

There are numerous 3D printing methods used on a construction scale, which include the following main methods:

  • Extrusion (concrete, cement, wax, foam, and polymers),
  • Powder Bonding (polymer bond, reactive bond, sintering)
  • Additive Welding.

3D printing at a construction scale will have a wide variety of applications within the private, commercial, industrial and public sectors.

Advantages of these technologies include:
• Faster Construction
• Lower labour costs
• Increased complexity and/or accuracy
• Greater integration of function and less waste produced
• Could improve the quality of the end product
• Another advantage is the freedom of design, whereby buildings can be tailored to suit customer needs.

Demonstrations of these technologies have included fabrication of housing, construction components, bridges and civil infrastructure. This technology has increased in popularity in the recent years as new companies have emerged onto the market, such as Yingchuang Building Technique (Shanghai) Co. Ltd or Winsun as it is known. Their entry into 3D printing started in 2005, with the intervention of the spray nozzle, one of the main elements of its first 3D printer. The spray nozzle was used to experiment with cement and other materials. Winsun also set up the world’s biggest 3D construction printer, which is 10 metres wide, 6.6 metres high and 150 metres long…pretty awesome hey 
In 2013, Winsun successfully printed a batch of ten 3D residential houses, whereby they used a special ink made of cement, sand and fibre with a proprietary additive. Winsun has increased productivity and made it possible to save costs, a standard house can now be built for plus minus $30,000. Then the increase in the speed of construction is a huge factor as well, for example, the construction of a two-storey 1,100 sqm mansion took one day to print and two days to assemble…yes I know, incredible right!!

Winsun’s technology is also a lot more environmentally friendly. They source 50% of their ink material from construction waste and mining tailings.
The company’s most important showcase project was the company’s first 3D office. It opened in May 2016 in Dubai for the Dubai Future Foundation. The building was printed in Suzhou, cut into pieces for shipping and transported to Dubai. It was assembled and finished within a few weeks.

Now, the main challenge that faces 3D printing is the scepticism of designers, governments, project developers etc. For some it seems just too good to be true. Winsun then realised that they can win clients over by inviting them to their factory to view the prototypes with their own eyes. They are also collaborating with architects such as Cornell Design Institute, Tongji Design Institute and Jiaotong University to educate designers to incorporate the 3D-printed design into their work, as well as training architects with its textbook on 3D printing.
Below are a few amazing 3D buildings that have been built

Europe’s first residential 3D printed house
World’s first 3D hotel

And that is 3D concrete printing as I understand it and a bit of background into one of the world’s biggest 3D concrete printing companies, Winsun.

I hope your mind is as blown away as mine at the moment 😀

Now get cracking on your new 3D printing building.

Sources:
Lifegate
CNET
Wikipedia
Future of Construction

To view more articles, please visit the Leads 2 Business Blog.
If you are interested in becoming one of our subscribers, please visit Leads 2 Business.
To view notes with screenshots on how to use our website, please visit the Leads 2 Business Wiki.

About Bianca Horne

I started working at Leads 2 Business in May 2013 in the Africa Tenders Department. I worked my way to the Leads 2 Quotes Department in September 2016 and have been there ever since.

All you need to know about Drone Surveying

posted in: Did You Know 2

All you need to know about Drone Surveying

SURVEYING
What is surveying?

Surveying refers to the detailed inspection of an object or area. It is commonly used to investigate infrastructure, developments or to assist with mining activities.
There are many different forms of surveying, infra-red, aerial photography and sensing tools just to name a few.
These methods can be very costly and time consuming and in today’s times we need to be fast and cost effective. Drones now allow us to save time and money.

DRONE SURVEYING
One of the more effective tools that allow you to obtain data a lot quicker and easier.

Today’s drone technology has many benefits.

  • Lower operational costs
  • Real-time reporting
  • Reliable data collection
  • A birds-eye-view of any terrain.

Here are a few ways drone surveying can save time and money, making any project more cost effective:

  • STOCKPILE SURVEYS
  • SLOPE MONITORING / DETECTION
  • TOPOGRAPHICAL SURVEYS

Now the question that everyone is asking…. What are the pros and cons of Drone Surveying??

THE PRO’s:

  • EASE OF DEPLOYMENT: Drones are able to complete survey projects in half the time of any traditional surveying method. Traditional surveying that took several weeks can now be done in a few short days, allowing projects to be done in less time.
  • REDUCED RISK: Drones are able to go into harsh and hazardous terrains, allowing better collection of any data in any environment.
  • DETAILED DATA: Drones are able to capture high-resolution images as they are equipped with imaging software which makes it easy to turn images into a wide variety of geo-referenced 2D maps and 3D models.
  • WILDLIFE: Leads 2 Business are very passionate about saving Rhinos. Drone surveying greatly assists in the fight against rhino poaching and the protection of the environment.

THE CONS:
There are some concerns when it comes to drone surveying.
Government can restrict drones to only fly in certain areas. There can be legal and financial implications for any persons that are found to be in violation.

Thus, in short, the Pros out way the Cons by far, as long as you have all your legalities in order!

 

Click here to watch Heart of a Ranger.

Sources
Airborne Drones
DC Geomatics
Planet In House
Grind Drone

To view more articles, please visit the Leads 2 Business Blog.
If you are interested in becoming one of our subscribers, please visit Leads 2 Business.
To view notes with screenshots on how to use our website, please visit the Leads 2 Business Wiki.

About Connie Flinders

I started working at L2B in April 2017 as an Accounts Executive. Not knowing too much about the construction industry. Learning new things every day and enjoying every second of it. Loving what I do!

Disastrous Demolitions and Dodgy Detonations…

posted in: Did You Know 2

Disastrous Demolitions and Dodgy Detonations…

That old adage, ‘failing to plan, is planning to fail’ certainly has merit – but sometimes, no matter how well planned, things don’t go to plan.

You know how it goes… that coffee machine you installed, instructions so carefully followed, gurgles and empties it’s contents on the floor, your meticulously prepared presentation goes awry because of connection issues…
or the office printer keeps printing in a foreign language! “konnichiwhaaa..t?”

Things do go wrong, sometimes catastrophically… but there’s very little that’ll top a disastrous demolition.

Imagine watching your carefully laid plans fail and instead of a spectacular demolition, you're forced to stand by as the multi-story building topples over and starts rolling – towards another development!!

An 80-foot-tall factory building in Cankiri, Turkey topples over like a giant somersault instead of being demolished as expected.

 

 

Should I stay, or should I go…?

This 22-floor apartment building in Liuzhou, China was demolished to make room for a new real estate project in the city.

However, (who would have thought?) things didn't go exactly as planned.

Seconds after the initial blast, half of the building crashed to the ground as planned... but the other half remained standing, leaning ever so slightly to the side.

The second half has since been demolished with a crane.

 

 

 

 

 

Almost!

The Red Road flats – Glasgow City.
Built in the 1960’s the Red Road flats in Glasgow City were earmarked for demolition in 2015.

Two of the six buildings in Red Road estate remained standing after they proved too resilient for planned demolitions.

Disruptions were caused for about 2500 residents living in the exclusion zone, who then faced delays in returning to their homes.

The demolition contractors confirmed the remaining two blocks were stable and would be demolished using routine machine demolitions.

 

 

 

 

Say again?   Repeating in Russia.

Trying – and failing – to demolish a building in Crimea Sevastopol.

 In a botch job of bad exploding, demolitionists rigged a 16-story building in Sevastopol, Crimea to blow, and could only make it lean.

Undaunted, the demolition team set another charge and succeeded in a second failed attempt.

The building was left teetering at a 70-degree angle.

The crew responsible for the controlled demo blamed the presence of nearby civilians for the failure, saying the structure was too close to a residential area, and the team couldn't use quite as much BOOM as they'd wanted, whereas another report from RT.com, a worker stated the reason being reinforced concrete, claiming the building could withstand a 10-magnitude earthquake.
Ultimately, a third explosion finished the job.

Wow - talk about a bad day at the office!

Hello Google…?:

Opening  up a whole new keg of dynamite are home demolitions.

In this next scenario, they were following instructions… literally, to the book;

Coming a close second to worst-scenario demolitions is getting a call from your neighbor… to say your house is being demolished!

Turns out the demolition company was misdirected by Google Maps…

It’s not an easy job for a demolition company, demolition work is one the most dangerous jobs in construction, with the highest injury rates. It’s never an exact science and difficulties arise from various factors, one being older developments, where there’s not a lot of historical information on the building.

Structural principals of the building are key for planning a demolition, the type of structure, where the supports are based, what types of demolition to best use, etc.

Deconstructing a building and allowing the contents to be sold for recycling or removing fixed machinery are factors that need be taken into consideration. Added to this, explosions can be caused by accidental detonations, gas build up (especially in the case of plants) or leaks from pipes.

 

Yip, there’s lot’s that can go wrong with demolitions… should you ever need a demolition job done, make sure you use a reputable company, so you won’t feature in the host of ‘Demolition fail’ videos on YouTube!

Please visit the Leads 2 Business Blog for more information on demolition.
If you are interested in becoming one of our subscribers, please visit Leads 2 Business.
To view notes with screenshots on how to use our website, please visit the Leads 2 Business Wiki.
To view more articles, please visit the Leads 2 Business Blog.

 

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.

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.’

 

If you are interested in becoming one of our subscribers, please visit Leads 2 Business for more information on demolition tenders.
To view notes with screenshots on how to use our website, please visit our Wiki site.
To view more articles, please visit our blog.

 

 

 

About Sasha Anderson

Millennial Mom + wife living the hash-tag life

Tips for Blasting

Tips for Blasting
Blasting

Firstly we need to know what blasting is. It is a technically controlled, effective and safe way to break rock for excavation. It is primarily used in Civil Engineering, Mining and Quarrying for roads and dam construction.

What explosives are used for blasting?

It is a common misconception that dynamite or gunpowder are used for most blasting activities but it is rather the engineered blasting agents that account for approximately 90% of explosive material used.
Ammonium Nitrate mixed with either sodium nitrate or calcium nitrate is the most common product and pound for pound the more effective explosive.

 

What is involved in Blasting?

• Holes are drilled into the rock and filled with explosives. The more solid the rock the more explosives will be needed.
• Proper ventilation is required to remove not only the dust but also the combustion gases from the explosion. This needs to be done before work can be resumed.
• The rock then collapses once detonation takes place.
• The debris is removed and if need be reinforcing is put in place before further work takes place.
• The entire blast lasts up to 1 second.

Blasting

Steps to be considered before blasting takes place:

• Fragmentation desired – take into consideration size of digging equipment and crushing equipment needed on the project.
• Rock quality/character – state of the area being blasted, is the rock hard or soft and is the area dry or wet.
• Site limitations – is the area to be blasted near other structures or properties.
• Safety limitations – are there any electrical hazards
• Equipment limitations – are all equipment needed for the project available

 

Random facts about blasting

• Blasting is now considered routine work in the mining industry.
• Geological or Geotechnical knowledge is needed to ensure effectiveness and safety.
• Blasting involves design and patterns, not just “blowing” stuff up…
• The result of rock blasting is often called rock cut.
• Mining and Construction are the 2 most common uses for explosives.

Blasting

 

Sources:
www.wikipedia.org/wiki
www.railsystem.net
www.miningandblasting.wordpress.com

 

If you are interested in becoming one of our subscribers, please visit our website.
To view notes with screenshots on how to use our website, please visit our Wiki site.
To view more articles, please visit our blog.

 

 

About Karen Garner-Savory

I started working at Leads 2 Business in May 2009, and have served as Head of Department of Telesales and Administration from 2010 until the present. I oversee both the Telesales department as well as the Administration of our Johannesburg Office.

1 2 3 4 5 6 11