Acid Resistant Linings Dubai & Abu Dhabi

Acid Resistant Linings

Equipment designed to handle corrosive acids such as sulphuric acid should be acid resistant otherwise they will not perform well and corrode sooner than later. Acid resistant materials are employed in industries ever since the manufacture of sulphuric acid started. Acid resistant linings are usually used in industries where acid usage is high and the equipment needs protection from its adverse effects. Although alloys of various materials are available which provide excellent acid resistance but since these are expensive, usage of alternative acid resistant linings has emerged over the past many years.

The most commonly used types of acid resistant linings in industries include acid resistant bricks which are further categorized into two types: Red Shale and Clay Bricks. These are most commonly used in combination with an acid resistant membrane as the bricks themselves are not completely acid resistant and function to reduce the rate at which the acid migrates to the membrane and equipment’s lining and cause damage. Besides brick linings, Chamotte and carbon & graphite linings have also become quite popular for their ability to show resistance to a lot of harmful chemical substances such as acids, alkalis, solvents and oils and grease in both liquid and vapour phases.

Ceramic Fibre Lining Dubai & Abu Dhabi

Ceramic Fibre Lining

Employed in furnace industries, ceramic fibre lining has become one of the top rated technologies used in constructing energy efficient furnaces. Ceramic fibre lining is installed in the furnaces in the form of modules which are then compressed by fibre blanket and squeezed into each other in all different directions practically leaving no space or gap among the modules giving the whole lining immense strength and durability. Ceramic fibre linings have become the first choice of industrialists when it comes to furnace construction majorly because of its extraordinary ability to resist high temperatures, heat shocks, easy installation and maintenance processes.

Besides the inner strength the ceramic fibre lining imparts to the furnace, they can also resist external mechanical force making the furnaces reliable and durable. Moreover, since the fibre blanket is extremely tough with no holes or gaps among the modules, it makes up for the deformed furnace shell rendering it useful and workable still. It resilience towards high temperature allows lesser heat to be conducted through it which subsequently results in smaller amounts of heat loss and an increase in energy-efficiency of the furnace reducing operational and fuel costs as well.

Casting Dubai & Abu Dhabi

Casting

Extensively employed in industries and construction sites, casting also known as foundering is the process whereby a liquid is poured into a mould which is basically a hollow cavity of a desired shape. The liquid solidifies inside into the desired shape which is then removed or broken out of the mould to complete the process and employed to work. Casting is basically a simpler and easier route to create difficult shapes in construction and industries which otherwise would be a lot more difficult to make through other rather traditional methods making the process economical, easy to use and accessible to many.

Casting process can be divided into subcategories either based on the type of mould used such as sand or metal or by pouring method such as gravity, vacuum or low pressure method. Based on various reasons, casting process has almost replaced other typical methods of moulding. One of the many advantages of casting is the ability to create complex yet small shapes in practically any type of material. Being the cheapest and most economical method available, casting can be employed to create any size of shapes as heavy as 200 tonnes!

Gunning Dubai & Abu Dhabi

Gunning

Construction processes have continued to evolve into a lot more sophisticated methods ever since technology overshadowed every little act of human life. Gunning machines is one such bespoken and brilliant example of exceptional technology and usefulness brought together. Incorporating proven technology and latest designs, companies have built gunning machines that allow engineers and construction workers to carry out their duties efficiently all day and night, through the year. The designs have evolved a lot offering simple handling and function with minimum maintenance required.

Gunning machines are extensively employed in steel and iron industry where they are utilized to repair refractory lining. Maintenance work done using gunning machines is best suited in industries and plants that do not require extensive large-scale repair work but quick small maintenance in several parts of the plant are needed to be done. What makes gunning machines appropriate for speedy refurbishing processes is the ease with which the apparatus can be set up and materials can be mounted. Besides the materials ejected from the machine tend to dry out a lot faster than many other traditional methods avoiding the risks of any possible explosions making gunning machines one of the best method of choice for repair work in industries.

Why Do Bridges Have Expansion Joints?

expension joints

As per the basic lesson in science, all materials flexible or not are prone to changes in their physical appearance with changes in the surroundings temperature. Concrete belongs to the non-flexible category of materials and hence it does not bend or stretch without changes to its physical appearance. While concrete’s strength and hardness comes as a useful characteristic most of the times it may also pose serious risks to the life and reliability of concrete structures (buildings, bridges, dams etc) when affected by environmental changes. It expands and contracts with the increase or decrease in temperatures and if suitable measures are not made to cope with this phenomenon, these changes may cause cracks to occur and slight shifts in structural elements.

Expansion Joints Save The Day!

To prevent the harmful effects of temperature on concrete expansion joints are incorporated in the construction of concrete structures such as between sections of bridges, walls and roofs, paving slabs, railway tracks and piping systems. Flexural stresses in concrete structures are produced due to the vertical movements of adjoining rigid foundation components such as if a slab is places between two structures an expansion joint is essential to keep the structures together. The main function of these expansion joints is to absorb these stresses and permit thermal contraction and expansion without inducing stress into the structural elements and causing a serious damage. Besides the function of preventing concrete structures from thermal expansion and contraction, expansion joints also absorb vibrations and permit soil movements due to earthquakes or ground settlement.

So how exactly are expansion joints helpful in the construction of bridges?

The bridges made of concrete are prone to thermal changes just like any other concrete structure and hence need modifications in structural elements to cope with those changes and prevent any serious damage to bridges. Concrete bridges expand and contract slightly not only due to thermal changes but due to shrinkage of concrete, ground settlement, ice and even due to weight of vehicles. To cope with all these environmental factors, bridge engineers incorporate expansion joints between various sections of bridge.

Expansion joints must be carefully designed and installed into the concrete structures to get maximum benefits. These joints are placed at equal intervals in the structure to ensure uniformity throughout the structure and to allow the joints to absorb environmental changes homogeneously. Bridge engineers carefully embed and install expansion joints into the concrete structure and make the transition smooth, however if an asphalt rubber is placed on the bridge, the engineers need to leave a little room for expansion joints. In which case, the drivers may experience a little bump while passing over that area.

What Are the Advantages of Being a Petroleum Engineer?

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Petroleum engineering is one of the most coveted fields of engineering with attractive job perks, opportunities to grow, handsome pay and chances to travel around the world. Petroleum engineers are highly educated, trained and specialized people in their field and work primarily for oil and gas companies, mining and petroleum and coal products manufacturing industries in countries dominated with petroleum resources. Their main job is to locate oil resources and supervise their extraction through various technological methods such as injecting chemicals, water or steam into the earth. Besides supervising extraction teams, their job also involves research and to improve the petroleum extraction techniques employing latest technology.

Petroleum engineers’ jobs are extremely difficult, there would be times when they have to work for hours without breaks locked up in their offices and other times they would have to work for hours under the scorching sun overseeing field work and extraction teams. While this life might be ideal for a loner it might not be best suited to a people’s person or a family man. Besides these challenging work conditions, petroleum engineers enjoy a number of rewards and advantages.

Coveted Job

The countries rich in oil and petroleum resources are some of the richest nations in the world because their economies are extremely dependent upon the extraction of those natural resources. Since only a small percentage of the necessary petroleum products flow out of the earth due to natural forces, petroleum engineers help with the extraction in an efficient and cost-effective manner employing various techniques ensuring minimum loss of these assets making their knowledge, skills and experience extremely valuable to the oil and gas companies.

High Pay

For a job as demanding and challenging as petroleum engineer’s comes with a lot of perks and an obviously attractive pay. When the demand and stakes are high the pays are high as well and this is the most obvious advantage of being a petroleum engineer. As per the U.S. Bureau of Labor Statistics, petroleum engineers reported an average salary of $138,980 per year in 2011 which is significantly higher than any other type of engineering. Petroleum engineers are among the very few professionals who have the chance to secure a high paying job right out of the college. And not only this, the job promises continuous raise in income as well.

Job Security & Growth

A Bachelor’s in Petroleum engineering is not offered all over the world making the degree special and since there aren’t a lot of people graduating with the degree the job prospects for the ones who do are high. Besides working for private or government Oil and Gas Companies petroleum engineers also find work in mining industry and petroleum manufacturing industries. Bear in mind though that petroleum engineering jobs may require relocation and that is one of the reasons these are categorized among jobs with high pays and amazing future opportunities.

10 Most Famous Bridges in the World

Man’s fascination with bridges will never end so not surprisingly tourists throng to the most famous bridges ever built all over the world from Asia to Europe. If you plan to visit any of these countries then better not miss on the exquisite sights that are these magnificent bridges.

1.   Golden Gate Bridge (San Francisco)

golden gate

With its majestic golden arches and incredible span of 1280 m, the Golden Gate Bridge has been a landmark of the city of San Francisco since its completion in 1937. The vivid sunset hue is actually not golden as the name suggests but a bright orange. This color was chosen by the architect Joseph B. Strauss because dense fog often envelopes the suspension bridge limiting visibility in the strait. It was built to connect the city with Marin County which lies north of it. One peek at this ingenious suspension bridge and anyone can easily guess the location.

2.   Tower Bridge (London)

tower-bridge

The thriving city of London has long since sparked the imagination of writers, artists and architects. One of the most popular tourist attractions in Europe is the Tower Bridge, built under the supervision of John Jackson that stands sentinel over the River Thames in Central London. It has been featured in countless literary publications and films since being open to pedestrians in 1894. There is something truly magical about this brilliant blend of suspension and bascule design augmented by the beauty of the castle right next to it.

3.   Rialto Bridge (Venice)

Rialto

Who isn’t familiar with the beautiful Grand Canal that flows throw the delightful city of Venice? Every tourist hops on for a charming gondola ride passing right under the iconic Rialto Bridge. It is a small but unique piece of architecture that is instantly recognizable. Antonio da Ponte drafted the design and construction concluded in 1591 standing the test of time despite criticism.

4.   Ponte Vecchio (Florence)

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The Italians boast of some of the finest architecture in the world so it isn’t surprising that the Ponte Vecchio, though ancient, is a popular masterpiece. Creating a passage between the two ends of the Arno River, it is the only one in Venice that was not destroyed by the Second World War. Keeping with the medieval tradition, people still sell their wares to tourists and locals on the stone arch bridge.

5.   Millau Viaduct (Millau)

Millau

The French outdid themselves by finishing this breathtaking cable bridge that spans the valley adjacent to River Tarn on Millau in 2004. It is an inspiring sight that meshes the glory of nature with human genius. It beats the Eiffel Tower in Paris to snatch the spot for the tallest structure in the entire country.

6.   Sydney Harbour Bridge (Sydney)

Sydney

When it comes to architecture, the lovely city of Sydney beats the capital of Australia. Apart from the Opera House, the Sydney Harbour Bridge occupies a special place in the hearts of tourists and locals alike, who call it “The Coathanger”. Its glorious steel arch is a refreshing site in the bustling business district.

7.   Great Belt Bridge (Denmark)

Great belt

This is another marvelous suspension bridge that boasts the highest points in the country. It was opened to traffic in 1998 and connects the islands Zealand and Funen. Made up of not one but two main bridges, the Great Belt Bridge joins at the tiny island Sprogø. It has an East Bridge (1624 m) and a West Bridge (6611 m).

8.   Brooklyn Bridge (New York)

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NYC needs no introduction. It is undoubtedly the most famous city in the world thanks to Hollywood. The Brooklyn Bridge, completed in 1883, is a distinguishing feature of the city that lights up the skyline of Manhattan connecting it to Brooklyn across the East River. Of course, it is a magnet for tourists and many annual events take place in the vicinity.

9.   Charles Bridge (Prague)

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At a time when gothic architecture was beloved by many, the Charles Bridge was built over the Vltava River in Prague. This incredible work of art was finished somewhere in the 15th century and is a hub for tourists, vendors and artists. It connects the Old Town with the Prague Castle district and is the only means to cross over to the other side so it’s always full of traffic.

10. Akashi Kaikyō or Pearl Bridge (Kobe)

akashi

The brilliant engineers in Japan came up with the modern marvel that is the Akashi Kaikyō Bridge, which has the distinction of being the longest suspension bridge (1991 m) ever built. It was opened to the public in 1998 and connects Kobe to Iwaya spanning across the Akashi Strait.

Each bridge is renowned for its unique design, history and position in the surrounding landscape that makes them ideal for stunning photography. No wonder tourists make a point to put them on must-see-sights lists.

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