100 adantages of precast concrete
TRANSCRIPT
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THE LITTLE BOOK OF
CONCRETE
A GUIDE TO THE ONE HUNDRED
ADVANTAGES OF PRECAST CONCRETE
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ACKNOWLEDGEMENTS
The National Precast Concrete Association produced this book
the British Precast Concrete Federation Ltd., which developed t
for the book. NPCA gratefully acknowledges British Precast for
with this publication.
b h
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INTRODUCTION
If concrete were to be invented today, it would be hailed as a
most commonly used building material in the world, and becau
it for granted. Too often this means that we overlook the nearly
b l ff d b
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WEATHERPR
Precast concrete is resi
penetration, flood dama
blown debris. It can als
winters of freeze-thaw
materials, which can de
with such regular expo
and contraction.
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QUIET
Because of concretes
density, precast buildings
make for a peaceful
lifestyle. Privacy and
effective sound reduction
are ensured, making
precast an ideal choice
for commercial and
residential construction.
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YET ACOUSTICALLY VERSATILE.
Because precast can be formed in any shape, size and textur
designed to deflect or absorb sound. This makes it a good ac
for music but also an effective sound barrier along busy road
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THERMALLY EFFICIENT.
Costs associated with heating and
cooling can be greatly reduced through
concretes thermal mass benefits.
Reduced peak heating and cooling loads
can be achieved because concrete reacts
slowly to changes in outside
temperature.
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PLUG AND PLAY.
Precast concrete can carry preinstalled
utility services and fixtures, whether
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WI-FI COMP
With homes and offic
wired for information
good news that preca
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RESISTSBUOYANT FORCESUNDERGROUND.
With a specific gravity of 2.40,
precast concrete resists buoyant
forces better than any other material.
Once it is installed, it stays put!
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PROTECTS AGAINST FIRE.
Precast concrete is fireproof. It protects against the
spread of fire between rooms or properties, and itcannot catch fire, burn or drip molten particles.
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LOWERREFURBISHCOSTS AFT
Concrete typically n
remedial treatment f
to the high tempera
many cases, some m
a coat of paint may required.
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OFFERS A SAFE HAVEN
The structural strength and density of precast concrete makes it an
for safe rooms in houses. Precast concrete storm shelters can easil
for protection in tornado-prone and hurricane-prone areas.
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AND KEEPS BUILDINGS SECURE.
Whether for homes, businesses, schools, bank vaults and incre
construction, precast is secure against break-ins and breakouts
reinforced concrete is extremely difficult to penetrate and is im
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INEDTERANDROD
Organi
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DURABLE ...
Concrete buildings from hundreds of years ago are still in use toda
Some say concrete can last up to 2,000 years, and there are
certainly many structures around that are well on
their way to such a ripe old age.
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WHICH MEANS ITEASIER TO GO HIGH
Tall buildings up to 80 stories can
precast concrete panels. The structprecast can reduce floor depths by
a 60 story building, the height wou
20 feet, which means two additiona
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DAMPENS VIBRATION.
Structures like sports stadiums and concert halls a
susceptible to vibration from noise and crowd mov
in some cases can be disturbing to people usi
Precast concrete can be used to
vibrations due to its mass, w
the material of choi
stadiu
hal
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INTELLIGENT.
It may be helpful to know how a structure is performing over tim
can be embedded in precast concrete to log data on movement or
Engineers then capture the data on the chip by swiping a reading
across the surface of the element.
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CAN ACHEIVE HIGH STRENGTHS
In civil engineering applications, high-strength concrete is often des
precast components can be cast to meet such demands. If high ear
are needed, this can be achieved through high-performance concre
designs or accelerated curing methods at the plant.
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RESISTS CHEMICAL ATTACK
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RESISTS CHEMICAL ATTACK.
For sidewalks and driveways, precast concrete interlocking pav
choice, because they are resistant to fuel and oil spills, they ca
easily and they are widely available.
ABSORBS IMPACTS
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ABSORBS IMPACTS.
Precast concrete can resist massive impacts, so it makes an ideal m
security around public structures. Whether in day-to-day use as a m
or for protecting the perimeter of a building, precast structures can
to absorb the impact from vehicles, redirect them and/or slow them
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LESS STRESS REL
Keeping in shape is important, an
is no exception. Some mattime, which can be diffi
in design. Not precast.
structure maint
and propertiefrom
CAN BE THIN
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CAN BE THIN
The use of synthetic or steel fiber reinforcement,
carbon composite grids and other high-tech
reinforcing materials in the precast concrete mixcan produce extremely slender elements. This
means that precast can be used in structurally
ambitious projects.
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CAN BE MADE INTO ANY S
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CAN BE MADE INTO ANY S
Form and mold manufacturers can use their skills to c
forward or unusual shapes. Manufacturers can offer
on how to achieve difficult architectural sh
barriers, bridge abutments and ot
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CUSTOMIZATION IS
Molds can be designed to be custo
means that parts of a mold can be
to produce slightly different sized
(master mold concept). This is an e
BLENDS WITH
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BLENDS WITHEXISTINGSTRUCTURES.
In areas of historic or
architectural importance,
precast concrete
structures can be
designed to match or
complement their older
counterparts. Careful mix
design in the precast
plant and use of mock-
CAN REPLICATE PATT
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CAN REPLICATE PATTSHAPES OR OTHER M
The versatility of precast means th
imitator, whether this entails copy
like keystones and capitals or ma
materials like natural stone o
restoration or pre
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CAN BESTRAIGHT ORCURVED
For external walls or
cladding panels, the
shape of a precast
component is called its
profile In these
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ODET
The lev
wall orreferre
articula
used to
AVAILABLE IN A WIDE
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AVAILABLE IN A WIDERANGE OF COLORS
There are many different aggregates and
pigments that can be incorporated into
precast concrete products, depending on
what is required. This gives designers
considerable scope to produce subtle or
contrasting colors.
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CAN BE CUT TO SUIT.
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Considerable flexibility can be built into precast concrete. Not only
and door shapes be created, but there is scope to design elements
are more lightly reinforced in some areas. These can then be cut thlater date should the client wish to add a door between two rooms
for example. Thin-walled knockouts are also common in utility
products that are easily adaptable to on-site
conditions and changes.
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PERFECPRECIS
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SMOOTH.
In the same way that
natural stone is prepared,
precast concrete can be
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EASPAINSTA
For som
precast
CAN BE DESIGNED TO CHANGE COLO
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The inclusion of thermochromatic dyes in precast concrete will ca
it to change color when it reaches particular temperatures. This i
fun idea but has serious applications too. For example, the concrecan indicate when it is too cold or too hot to touch.
CAN BE SELF-C
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The inclusion of titanium d
panels not only produces
it also helps keep the surfingredient captures unwan
this case, dirt and dust), w
washed away by the rain.
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AND BUILTO PRECISESPECIFICAT
Precast manufacture
with engineers, specand owners to guara
reliable workmanshi
the quality of servic
COVERED BYINTERNATIONAL
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INTERNATIONALSTANDARDS.
The precast concrete industry keeps a
keen eye on national and international
standards. This ensures that customers
receive the best quality products that
are compliant to all relevant standards.
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GREAT RESULTS EVERY TIME
Because of the quality controlled manufacturing environment,repetition of individual products can be achieved with confidence
whether the job requires 10, 100 or 1,000 pieces.
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WLON
LASFORMO
Precast
PLAYS A KEY ROLE IN HYBRIDCONCRETE CONSTRUCTION.
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CONCRETE CONSTRUCTION.
The combination of precast with steel or cast-in-place concrete in h
construction can have cost and program benefits. Precast concrete
brings accuracy, high-quality finishes and speed of erection to
any hybrid concrete construction project.
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REDUCES JOBSITE IMPACT.
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Precast installation is so quick that
other trades can begin work sooner
often saving weeks on the
construction schedule. Precast also
requires less storage space on site,
no long setups for scaffolding, and
smaller crews to install. Precast
needs no additional curing on site
and does not require protection
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USES PLENTIFUL,LOCAL, NATURALMATERIALS
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MATERIALS
The materials that comprise precast
concrete products come from naturaland recycled sources, making it a very
sustainable construction material,
perfect for green building under LEED
guidelines. Aggregates and water are
all widely available and in plentiful
supply.
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USESBYPRODUCTSFROM OTHER
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FROM OTHERINDUSTRIES.
Precast products can
safely incorporate
materials such as blast
furnace slag (from the
iron and steel industries)and fuel ash (from coal-
fired power stations) that
might otherwise go to
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NOTONOIL-PRO
A good
relies o
clean b
precas
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AVOIDS EXPENSIVE
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AVOIDS EXPENSIVEENVIRONMENTALDISPOSAL COSTS.
Making better use of natural resourcesmakes good business sense and holds down
costs. Using ready-made precast products
limits waste disposal costs on the job site.
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OR RECYCLED.
As with many concrete products, precast is easy to crush and
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aggregate. Demand for previously enjoyed materials like th
every year. Even the reinforcing steel can be recycled.
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SUSTAINABLE
Precast is perfect for todays focus
on preserving resources and
protecting the environment through
sustainable building practices.
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AND GREEN
Precast concrete building p
with at least four categorie
certification and can also h
qualify for additional Inno
MINIMUM WASTE EXPORTED OFF SIT
Even small amounts of scrap or waste in the process can be recycle
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slurry and process water can be recycled, and scrap products can
and reused in other sectors of the construction industry.
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PROTECTS HIGHWAY WORKERS
Precast concrete highway barriers improve safety in construction
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Precast concrete highway barriers improve safety in construction
zones on roads and highways and can be readily moved based on
traffic volume, reducing delays and speeding construction project
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REDUCES URBAN ENERGY USE.
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Precast concrete finishes help to reflect light, so at
night the streets are brighter and safer. On a hot day,
these same finishes reflect sunlight, keeping buildings
cooler and limiting the urban heat island effect.
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HELPS CREATE HEALTHYINDOOR ENVIRONMENTS.
The simple lines and smart edges of precast
concrete are easy to clean, and its hard,
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EASY TO SELL, LEASE
The aesthetic appeal and longevity of
precast structure can attract occupan
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precast structure can attract occupan
investors and produce a reliable retu
The architecture and performance qu
mean that units can be sold or leased
EASY TO EXTEND.
The fact that precast components can be dismantled
means that it is easy to add extensions or new
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means that it is easy to add extensions or new
wings to precast structures. Simply remove
end panels and continue building the end
panels can be reinstalled upon completion.
LOWINSUCOS
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With a
properresista
modula
benefit
buildincases a
insuran
those b
LOWERMAINTENANCECOSTS.
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In exposed locations, some
structures will need regularpainting to protect against
corrosion and enhance their
aesthetic appearance. Not
precast. This advantage isparticularly relevant for
roads, bridges and
structures that cannot be
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IMPRESSIVE VALUE FORA LONG SERVICE LIFE.
Theres no doubt that the many
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advantages of precast comprise a
significant package. Its super strong,long-lasting and resists buoyancy
underground. And it offers beauty
and value through attractive finishes,
modularity and quick all-weather
installation above ground.
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EVERES
Precas
and du
withsta
mainte
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PEACE OF MIND.
The technology behind precast production, design and constructio
back hundreds of years, so customers can be assured of peace o
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y , p
specifying precast products. Precast is a proven technology with
and a high-tech future.
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The association of the manufacturedconcrete products industry10333 N. Meridian St., Suite 272Indianapolis, IN 46290317.571.9500 | 800.366.7731 | www.precast.org