The document discusses various methods for transporting and handling concrete on construction sites, including wheelbarrows, skips and hoists, belt conveyors, transit mixers, buckets used with cranes and helicopters, pumps, and screw spreaders. A wide range of equipment has been developed to transport concrete given modern demands, with considerations for advantages and limitations of each method depending on the transport distance and placing conditions. Pumps are commonly used to convey concrete over long distances both horizontally and vertically on multi-story buildings and bridges.

1. Transporting and Handling of
Concrete
CONSTRUCTION PLANNING AND MANAGEMENT
Presented By
AMAN KUMAR GUNSAGAR RAJPOOT SUMIT KUMAR
NANDAN

2. Modern demands on the transporting and handling of concrete
have imposed a wide variety of requirements on the operations
needed, and the methods and equipment that have been
developed are many. A wide variety of equipment has been
designed to satisfy these and other requirements. Concrete
handling operations now employ such diverse equipment as
trucks, hoopers, and chutes, wheelbarrows and carts operated
over runways, buckets lifted by crane, tower hoist, or cableway,
belt conveyors, pumps, and in special cases rail cars, helicopters
and boats or barges.
Requirement of Concrete Transporting
and handling

3. Transporting and Handling
Used for: Short flat hauls on all types of onsite
concrete construction.
Advantages: Versatile—ideal inside and on
jobsites with changing placing conditions.
Watch for: Slow and labor intensive.
Wheelbarrows and Buggies

5. Transporting and Handling
• Used for: Skip is used for
transport vertically up (in
multistory building)
Advantages: Skip can
discharge manually or
automatically. At the ground
level, mixer feeds the skip and
the skip travels up where
concrete is required
•
Skip and Hoist

6. Transporting and Handling
• Used for: Conveying concrete
horizontally or higher/lower
level.
Advantages: Can transport
large volume, very quick, Can
go where access is limited.
Watch for: End-discharge
arrangements needed to
prevent segregation and mortar
on return belt. Belt cover
needed in hot and windy
weather.
•
•
Belt conveyor

8. Transporting and Handling
Used for: Used for long distance travel in ready-
mix concrete plant. Concrete is continuously
agitated in truck drum (2-6 rpm)
Advantages: Transport mix in dry condition
and water is added on reaching the
destination. Pumps and conveyer belt are also
fitted to discharge the concrete.
Watch for: Wet mix in truck must reach site in
1-1.5 hours.
Ttransit mixer

9. Transporting and Handling
Buckets
Used with: Cranes, cableways,
and helicopters. Used for construction
in valley, bridge pier in river and dam.
Advantages: Enables full versatilityof
cranes, cableways, and helicopters to
beexploited. Clean discharge.
Concrete is not exposed to sun or air
hence no loss of water
Watch for: Select bucket capacity
depending on the size of aggregates in
the concrete, consistency of the
concrete and the capacity of the
equipment used to lift the bucket.

10. Transporting and Handling
Cranes
• Used for: Work above ground
level.
Advantages: Can handle
concrete, reinforcing steel,
formwork, and sundry items.
It can move horizontally &
vertically.
Watch for: Has only one
hook. Careful scheduling
between trades and
operations is needed to keep
crane busy
•
•

11. Transporting and Handling
Used for: Conveying concrete from central
discharge point to formwork.Generally used
for multi storey , tunnels, bridges.
Advantages: Pipelines take up little space and can
be readily extended. Delivers concrete in
continuous stream. Pump can move.
Watch for: Constant supply of freshly-mixed
concrete is needed without any tendency to
segregate.
Pumps
Pumping of concrete is most commonly adopted
method of transportation of concrete and placing.

12. Types of Pumps system used are-
• Mobile pump
• Screed or Mortar pump
• Trailor or Static pump
• Concrete used in pumps should be cohesive and heavy.
• Generally 15 to 150 m3/hr capacity pumps are used.
• These pumps can push concrete upto 400m horizontally and 80m vertically.
• To reduce bleeding and segregation , admixtures are used.

13. Transporting and Handling
Screw Spreaders
Used for: Spreading concrete
over large flat areas.
Advantages: Concrete can be
quicklyspread overawide area
toa uniform depth.
Watch for: They should be
used for spreading before
vibration is applied.