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One of the oldest manmade structures are none other than the dam, whose main purpose is to
hold back water. They are also used to help drive water to where it is needed for irrigation
purposes, to help keep flooding under control, or to help generate power. Dam construction may
only serve a handful of useful purposes, but there are numerous types of dams and different ways
to create them to meet those needs. Some of the different types include timber, arch-gravity,
masonry, and embankment dams. And the more common materials used in dam construction
include concrete, rock, steel, and wood.
Even though dam construction has existed for quite some time, the craft has been refined and
perfected, especially in the last 100 years with the advanced dam construction engineering
techniques that have developed. Some of the dams built a long time ago are in need of a
structural update, if not a complete repair. The cost of the huge undertaking of bringing all dams in
the US up to meet the current standards has been estimated at $40 billion. It will be important to
use a material that is affordable, but still remains reliable and safe.
Engineers have been more and more focused on using a material called roller compacted
concrete. It is a fairly new creation, which was first used in dam construction in the early 1980's to
build the Willow Creek Dam in Oregon. Since then, roller compacted concrete has been effectively
utilized in the dam construction of over 70 brand news dams, and to repair at least another 100
dams. The 3 things that make it a perfect fit for dam construction are cost, time to construct and
performance. Roller compacted concrete is durable and strong, yet its cost can match that of rock
filled constructions.
Roller compacted concrete allows the dam to be protected from earthquakes, erosion, and keeps
water from running over top of the dam. It is made with the same materials that make up
conventional concrete including water, cement, and construction aggregate (sand, gravel, stone,
etc). Roller compacted concrete has also shown that it can be used efficiently in reinforcing older
dams to help them become more resistant to earthquakes as well making them more stable
overall. Many dams already do not meet the current safety standards, and 80 percent of this
country's dams will have been around for 50 years by 2020, so roller compacted concrete can
come in handy now more than ever.
Anthony Onaf is a Raleigh SEO consultant associated with Thalle Construction Company. Thalle
specializes in dam construction using roller compacted concrete.

2. Article Source:
http://EzineArticles.com/?expert=Ant_Onaf
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#1 in Customer Satisfaction !! We offer Quality Concrete Plants & Equipment Sales for the Best
price! Call 1-(262)-349-9436
www.FescoDirect.com
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