Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge. ...
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Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge. ...
pervious concrete cost vs concrete
pervious concrete cost
pervious concrete paving
pervious concrete driveway
pervious concrete companies
pervious concrete installation
pervious concrete patio
pervious concrete cost per yard
interesting civil engineering topics
civil engineering topics for presentation
civil seminar topics ppt
civil engineering seminar topics 2018
best seminar topics for civil engineering
seminar topics pdf
seminar topics for mechanical engineers
seminar topic for civil engineering pdf
Porous Concrete is an important application for sustainable construction and is one of many low impact development techniques used by builders to protect water quality.
The high porosity of Concrete allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge.
It is traditionally used in parking areas, areas with light traffic, residential streets, pedestrian walkways, and greenhouses
This document is prepared for our major project submission for B.tech degree. the project deals with improvement of compressive strength of pervious concrete with out affecting its permeability property much.
pervious concrete used in pavement presentation
presented by answer Muneer Ali
MSc in civil engineering - university of Baghdad
eng.anwer2012@gmail.com
009647710646107
Porous Concrete is an important application for sustainable construction and is one of many low impact development techniques used by builders to protect water quality.
The high porosity of Concrete allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge.
It is traditionally used in parking areas, areas with light traffic, residential streets, pedestrian walkways, and greenhouses
This document is prepared for our major project submission for B.tech degree. the project deals with improvement of compressive strength of pervious concrete with out affecting its permeability property much.
pervious concrete used in pavement presentation
presented by answer Muneer Ali
MSc in civil engineering - university of Baghdad
eng.anwer2012@gmail.com
009647710646107
Block paving is one of the most popular surfacing options and is made from clay and concrete. For more details visit http://www.switchlandscapes.co.uk/
Pervious Concrete is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge.
Porous asphalt pavement is one alternative solution to the problem of stormwater drainage from parking and other low traffic density areas.PA used in place of traditional impervious paving materials decreases the total amount of runoff leaving a site, promotes infiltration of runoff into the ground, reduces the amount of pollutants carried to a storm drain or waterway, and aids with reducing peak runoff velocity and volume.
“When it pours, it’s porous.”
Porous asphalt pavements offer developers and planners a new tool in their toolbox for managing storm water. These pavements, used mostly for parking lots, allow water to drain through the pavement surface into a stone recharge bed and infiltrate into the soils below the pavement. Such pavements have been proving their worth since the mid-1970s, and recent changes in storm water regulations have prompted many consulting engineers and public works officials to seek information about them
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Pervious concrete for Road Pavements
1. Pervious concrete
Pervious concrete is a mixture of coarse
aggregate, Portland cement, water and little to no
sand.
A typical pervious concrete pavement has a 15-
25% void structure and allows 125 to 325 litres
of water per minute to pass through each square
metre.
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2. Pervious concrete for road pavements
Pervious Concrete can be successfully used for
pavements and is environmentally friendly paving
material that offers the durability of standard
concrete while retaining storm water runoff and
replenishing local watershed systems
By using pervious concrete drainage of run off
water at parking lots, sidewalks, streets,
driveways, etc. can be done.
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3. Where it is used?
pervious concrete is helping communities in
California and Washington restore groundwater
supplies and reduce pollution of coastal waters,
which can endanger fragile aquatic ecosystems
and even swimmers.
In California, pervious concrete is primarily being
used to pave parking lots. But its also becoming a
practical alternative for subdivision streets,
sidewalks, and golf cart paths.
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4. Installation process of Pervious
Concrete
Pervious concrete is delivered to the
jobsite by conventional ready-mix
trucks.
Because pervious concrete is thicker in
consistency than regular concrete, a
vibrating mechanical screed is used to
level it off. Vibration is followed by
compaction with a heavy steel roller to
attain greater strength.
Because pervious concrete has a low
water content, curing is especially
critical. After placement, the concrete
is mixed with water and then covered
with plastic sheeting and kept damp for
at least 7 days to allow full hydration of
the cement.
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5. Benefits of Pervious Concrete
Economic Benefits
Environmental Benefits
Other Benefits
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6. Economic Benefits
initial costs for pervious concrete pavements
are higher than those for conventional
concrete or asphalt paving. But total costs
can be substantially lower.
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8. Other Benefits
Lower installation costs
Permits the use of existing sewer systems
Increased land utilization
Lower life-cycle costs
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9. Limitations
As pervious concrete contain no fine
aggregate its surface is quiet rough and
honeycombed. Hence it seems unsuitable for
roads where traffic is heavy as on highways.
It can not used for highways, because it has
low strength
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10. Further Scope
There is much more scope for research
work to impart sufficient smoothness to
pervious concrete pavement surface.
Grinding of surface or providing porous
plaster may be tried.
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