Tuesday, March 24, 2015

PVC Pipe - A Reveiw

Overview

PVC pipe is a fairly recent technical advancement that is critical to Civil Engineering. Although there are more recent technological breakthroughs in the Civil Engineering field, PVC is one that has had a very large impact.

PVC stands for Polyvinyl Chloride. PVC pipe is a type of plastic pipe used mainly for water and sanitary sewer systems, although it has been used in some areas for storm sewer systems as well. PVC is light-weight, inexpensive, wear resistant, and good under pressures.

Applications

PVC is used in almost all new water and sanitary sewer systems because of its great traits. Contractors like to use it because it can be made into sticks that are twenty feet long, versus the old iron and clay tile pipes which were four or five feet long. It also is easier for the contractors to handle because of its light-weight.

PVC pipe can be manufactured much cheaper than other forms of pipe allowing in a reduced cost. The traits spoken about in the previous paragraph also add to the reduced cost. The contractors ability to lay one stick of pipe that is twenty feet long versus four sticks of pipe to achieve the same twenty feet, allows the contractors to work more efficiently which also adds to the reduced cost.

PVC can also with stand higher internal pressures. These increased pressures allow for more functionality and a reduction in the amount of apparatuses needed for pressure reducing. It also allows the pipe to carry water to higher pressure applications reducing the need for additional pumps.

It is also resistant to most chemicals. This allows engineers to use it in sanitary sewer systems that are constantly under attack from household chemicals. These chemicals alone are not so bad but it is the mixing of these chemicals along with everything else that can be found in a sewer system that increases the chemicals potency. PVC is resistant to most of these chemicals which make it a great product to use in areas where this is a concern.

Along with chemical resistance, PVC is also resistant to most acids. This also adds to its usability in sewer and water systems.

PVC's ability to resist chemical and acidic wear allows for an increased life span in the PVC pipe installed. PVC is usually expected to last up to two times as long as the old iron and clay tile pipes used previously.

Conclusion

PVC is a great advancement in the field of Civil Engineering. Because of its low cost and long life span it can be used in many applications. PVC is by far the most installed pipe in underground utility construction, and is being used in homes for sewer plumbing as well. The only real drawback of using PVC is that UV rays can damage the plastic pipe after some time. With the necessary precautions in place, this is rarely a problem. PVC used in the field of civil engineering is usually buried but there are UV protectors than can be used if necessary.

Tuesday, March 3, 2015

WHAT IS CIVIL ENGINEERING?

Basics

 Many people think of Civil Engineers as the people who design roads and bridges, but in reality, it is much more than that. Civil Engineering is a very broad field that involves quiet a few sub-fields. Some of these sub fields include, Structural Engineering, Environmental Engineering, Municipal Engineering, and Transportation Engineering, to name a few.

Structural Engineering mostly deals with structures and there abilities to resist loads. Bridges, tunnels, dams, and canals would be some of the more common structures that a Structural Engineer would be involved with. A Structural Engineer would aid in the design and construction along with assessing the structure throughout its life to insure safety and function ability.

Environmental Engineers evaluate the environmental impacts of proposed projects, and help with treating the air, ground and water around us. They design systems to deal with contaminants in our environment and ways to avoid future contamination from occurring.

Municipal Engineers design and maintain cities. They are involved with the design of the cities streets, pedestrian paths, building planning, and utilities. This field of Civil Engineering is what I am most interested in because it allows the engineer to be involved in a few different civil disciplines instead of specializing in just one.

Transportation Engineers design and maintain all of our modes of transport, although most Transportation Engineers usually specialize in one mode of transportation. Different modes of transportation would include passenger vehicles, trains, airplanes and boats.

Interests

Civil Engineers are usually people who are interested in the outdoors. Most of the sub-fields of Civil Engineering, require you to do things outdoors on occasion, so a liking of the outdoors is good. One of the interests for me personally is being around construction. I worked general construction jobs for three years, before starting college. I  liked construction and wanted to stay involved in it in some way. Another interest that Civil Engineers have is being apart of building things that the general public uses every day. This means that the things Civil Engineers build must be extremely safe and reliable, both for people and the environment.

Values

Civil Engineers value the people around them. Most of what Civil Engineers do, are things that most people take for granted. When is the last time you drove to work, or turned your faucet on? You probably never even thought about all of the work that goes into ensuring that you had a safe drive to work because the roads you used were engineered sufficiently, or that you can drink water from your faucet without worrying about getting sick because there are Civil Engineers somewhere who are ensuring that your water is safe.

Civil Engineers also value building things in an innovative and economic fashion. They are coming up with ways and materials to build things that are cheaper, safer and will last longer than the more conventional methods that have been used before.

General Purpose

From everything so far, we can conclude that the general purpose of a Civil Engineer, is to build a safe and reliable future. All of the things that Civil Engineers are involved with affect the general population in some way. Whether its a structural engineer, who designs the roof over our heads, or the environmental engineer who ensures that we are not contaminating our air and water. Civil Engineers look to build a safe, reliable and sustainable future for us all.