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Paving contractors, road builders and even government agencies are turning to Roller Compacted
Concrete as the pavement of choice in larger numbers as the acceptance of Roller Compacted
Concrete, also known as RCC, grows across the United States. RCC offers unique qualities
different from traditional concrete or asphalt that make the pavement an economical, fast-
construction candidate for many applications previously reserved for asphalt or conventional
concrete.
RCC has been traditionally been used for surfaces carrying heavy loads at low speeds because of
its relative coarse texture, but in recent years RCC has been selected as the pavement of choice
for a greater number of commercial and industrial applications. Cities such as Columbus Ohio
have begun using Roller Compacted Concrete for residential streets, and Atlanta Georgia has
used RCC for interstate shoulder construction. RCC is primarily used in the construction of
industrial and commercial parking areas and low traffic road surfaces.
Typical applications of RCC include:
Industrial access roads and parking areas
Shipping yards and ports
Truck and freight terminals and distribution centers
Bulk commodity storage and compost areas
Aircraft parking areas
Urban, rural and park roadways
Large commercial parking lots
Temporary travel lanes
RCC is also being used in pavement systems for higher traffic speeds serving as base for
traditional concrete or the lower lift in a two lift paving operation.
There are many benefits to the use of roller compacted concrete, but the main factor is the RCC
can be constructed faster and cheaper than traditional concrete and multiple lift asphalt
pavements. RCC can be constructed fast because it is typically placed with asphalt type paver
equipped with a standard or high density screed, then compacted with rollers. Unlike conventional
concrete the use of forms, dowels, reinforcing steel and vibration are not used. Additionally
transverse joints are not required, however when project specifies they must be present the joints
are spaced farther apart than conventional concrete.
The cost savings associated with RCC is attributed not only to the ease of construction, but the
material also uses less Portland Cement the most expensive ingredient in conventional concrete.

2. The specific savings associated with the use of roller compacted concrete is dependent on the
complexity of the construction, size of the project and specified mix design.
Additional benefits of RCC - Roller Compacted Concrete
Durability and resistance to chemical attack
High freeze-thaw durability even without the use of air entrainment
High strength capable of supporting heavy repetitive loads without failure
Reduced cracking and shrinking
Rigid surface eliminating rutting except in areas of heavy tire chain or studded tire use
Resists abrasion even under heavy traffic loads and volume
Light colored surface reduces the required lighting for parking and storage areas
Light vehicles and cars can travel on RCC soon after completion
While the benefits of RCC are numerous it is important to understand there are also some
limitations to the use of roller compacted concrete. For example the production of large quantities
of RCC requires specialized equipment. While a transit mix truck can mix RCC the mixing time is
significantly longer than conventional concrete and the amount of RCC than can be mixed in the
truck is reduced because the dryness of the RCC mix. Also the surface of RCC may not be
suitable for high speed traffic without diamond grinding.
Other limitations of RCC
Adjacent slabs and multiple horizontal lifts must be place within an hour to ensure good bonding
unless a cold joint is planned
Pavement edges are more difficult to compact causing most specification to require 96% modified
proctor density on cold joints
Admixture usage on RCC may be higher than traditional concrete because of the dryness of the
material
RCC paving in hot weather requires extra attention to reduce the possibility of water loss and
evaporation
When considering the versatility of RCC, its ease of application in comparison to conventional
concrete and its durability as compared to asphalt it becomes clear the roller compacted concrete
is a suitable paving substitute. When considering the rising cost of oil and petroleum based
products such as asphalt it becomes clear that RCC is likely the paving material of the future.
Matthew Gladen is the managing partner of FESCO Direct LLC. FESCO Direct LLC offers the
most comprehensive line of RCC production equipment of any capital equipment dealer currently
operating in the US.
Equipment available for the production of Roller Compacted Concrete from FESCO Direct LLC
include a conversion trailer that when placed under any existing dry mix or ready mix concrete
plant allows the production of RCC at the maximum production capacity of the concrete plant or
200 cubic yards per hour what ever is lowest. Other specialty equipment include highly portable
continuous mixing plants. Currently FESCO Direct offers two modes of Continuous Mixing Plants;

3. one offering a maximum of 400 tons per hours and the other offering a maximum of 600 tons per
hours. http://fescodirect.com/roller_compacted_concrete_plant.html
For more information on RCC and the equipment used to produce RCC contact FESCO Direct at
+1 (262) 349-9436 or visit their company's website at http://www.fescodirect.com.
Article Source:
http://EzineArticles.com/?expert=Matthew_Gladen
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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
==== ====