Archive for March, 2010

Pipeline Constructions

Use of bulldozer for constructing pipeline

Construction of pipeline

Pipeline constructions involve various tasks prior to, during and after the construction. It starts with surveying and staking the area, creating the right-of-way and trenching the path where the pipeline will be constructed. Stringing of pipes which involves putting the pipes end to end is the next step. Once this is done the actual construction of pipelines begins. This involves, bending the pipes and joining them. The ends of the pipes are welded together, using epoxy resins as sealants.

Once this is done, a protective coating is applied on them to ensure they don’t corrode and are resistant to natural corroding factors. The pipelines are then lowered into the trenches that have been dug out using bulldozers and special cranes. After installing proper fittings and tightening the valves etc. the trenches are recovered. Pressure testing is done for some time with the pipes using air, water and methanol. After this the right-of-way is brought back to its original contour by replacing the top soil.

Ensuring Safety at Construction Sites

Safety gears for construction

Safety measures for construction

Construction sites could often prove dangerous to workers and non-workers. For the same reason various regulations are in place to ensure that safety norms are practices at construction sites. The lives of workers are often at risk at construction sites, and a single slip-up could be fatal. Most construction sites have a temporary fencing that prevents non-workers to approach risky construction area due to dangerous equipment being operated or transfer of materials, excavations etc.

There are many rules in place to ensure workers are safeguarded from dust, dangerous fumes and other construction material in the air that could cause harm to the workers and people in the nearby area. Excavations are usually covered when no work is going on and there should be clear sign boards to prevent people fast delivery to go anywhere near them. Also roof edge protection is done to ensure that workers don’t fall of the edges of roofs and ceilings of commercial buildings under construction.

Latest construction equipments

Different equipment for constructions

Eight types of Different construction equipments

A whole variety of equipment is used at a construction site for various functions. Some of them are heavy equipment that needs a specialist to operate them while some are simple utility equipment to make things easier. Concrete block making machines, graders with almost 8 feet long blades, and hydraulic jacks are among the most used heavy equipment. Pulverizers are commonly used to break down the material to a smaller size especially the soil. Lifting equipment such as cranes that use wire and rope slings or pick and lift mechanisms are also used extensively to transfer heavy material from one spot

In some places, sand blasting equipment is also used to clean up hard surfaces. Concrete cutters are very helpful to cut through concrete masonry and stone. Soil compactor, to even up the soil foundation, the broomer with powerful sweeping hydraulic machines to clean up a space are examples of sophisticated equipment used in modern constructions.

Prefabricated Steel Buildings

 

Prefabricated white Steel Building

Constructed Prefabricated Steel Building

Buildings in modern day constructions excessively use steel in various components e.g. sheets, welded beams, gutters, ridges, flashings and louvers. The prefabrication helps in bringing some important properties to steel and improve its overall structural strength too. The greatest advantage of steel which is pre-fabricated is that it is more economical compared to wood and stone. Exterior paneling and the usage of I-frames helps improve the overall quality of the steel structures.

It is also easier to design steel buildings and the final finish, ease and cost of adding accessories required on steel structures are good reasons to choose pre-fabricated steel over other materials. Prefabricated steel is easy to relocate and also incur less welding costs. These are also more resistant to rust and wear because of their protective alloy coatings. These coatings ensure that the steel doesn’t react to other chemicals in runaway water, neither does it corrode over a period of time.

Types of Foundations

 

An Artifical doundation - Palm Jumeirah, Dubai

Palm Jumeirah, Dubai

On the broad level foundations are of two types. A natural foundation is laid where the soil is compact to a great level and hence cannot be further compressed. The foundation is hence raised on the immediate soil. It is often good to provide a drain at the lowest area to ensure there is no water clogging in the foundation. Sometimes, the soil is blasted and shaken a bit, and the uneven patches are cut and filled with concrete to make it tight and compact.

Artificial foundation means when a building is supported by an artificial structure. These could be spread, pile or pier foundations. Spread foundations are laid extending on either side of the walls to reduce the pressure per unit area. Pile foundation is when long round or pointed timber or other wood like oak is used. When there is a hard layer beneath soft soil, piers are dug through the soil which is filled with concrete for good support.

What is Tilt-up Construction?

Image of Tilt-up Construction

Workers working at Tilt-up Construction site

This is a construction mostly used for one-story building including office trial pack buildings, warehouses and others. It has worked well for these types of set up and the trend is not about to stop any time soon. It is therefore economical for building individually designed concrete structures.

Tilt-up Construction has a numerous environmental benefits during the construction phase and after that. This means that you will not incur expenses usually known as maintenance or repair costs at a later time. This method saves on energy by combining thermal mass and other stuffs hence reducing air infiltration.

During construction, materials such as fly ash, slag cement, silica fume can be incorporated as a result diverting materials away from the landfill and in the end reducing waste of virgin materials. All in all, this method of construction requires strict monitoring to ensure the overall success and general safety of the concerned parties.

Water Supply and Various Types of Pipes

Different types of Water supply pipes

Six types of Water supply pipes

Water supply is generally the subsequent generation of water to various parts of a housing system. The supply is normally done with the help of pipes from a public water supply. Such a scheme requires an individual to familiarize themselves with the available types of pipes before settling on one type of pipe. This will ensure that you choose the ideal type which suits your needs to the maximum.

The available types of pipes include the likes of metallic, cement and plastic pipes. All these types are used for supplying water to various parts of the house. Their prices vary considerably depending with their life span. For the metallic pipes, you will certainly find the likes of CI pipes, GI and steel pipes.

Cement pipes includes the likes of asbestos cement pipes among others. They are ideal since they are corrosive resistance as opposed to other types of pipes. Cement pipes are normally bulky and thus heavy to carry around

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