Introduction of Roller

Types of Rollers:

• Cylindrical Rollers.
• Grid Rollers.
• Pneumatic Tyred Rollers.
• Sheepsfoot.
• Smooth Wheeled or Static Rollers.
  • Single Drum Rollers.
  • Double Drum Rollers.
• Vibratory Rollers.

#1. Cylindrical Rollers:

#2. Grid Rollers:

#3. Pneumatic Tyred Rollers:

#4. Sheepsfoot:

• The aggregate weight of the roller.
• Area of every lug.
• No of feet or lugs in touch with the ground.
• Total no of lugs per drum.
• Paramount pressure exercised on the soil when a foot is vertical.
• The density of the blended soil should be about 1.48 kg/cm3.
• Pressure on the feet maybe 4 to 7 kg/cm2 for light rollers and up to 25-70 kg/cm2 for brobdingnagian rollers.

#5. Smooth Wheeled or Static Rollers:

#5.1. Double Drum or Tandem Roller:

• Tandem rollers (having one wheel at the rear and one wheel in front)
• Three-wheeled rollers (having two wheels at the rear and one in front)

#5.2. Single Drum or Three-wheeled Roller:

#6. Vibratory Rollers:

Advantages of Roller Compacted Concrete:

• Brisk placement.
• Shorter haul distance.
• Small construction crew.
• Can resistance lofty temperatures.
• Heat isn't evolved during the dehydrating of concrete.
• In this roller-compacted concrete rebar isn't required.
• Roller compacted concrete requires the minutest nurture.
• Roller compacted concrete requires minimal maintenance.
• Roller compacted concrete is resistant to shoving & pushing.
• Roller compacted concrete brings forth substantial durability.
• Will not be affected by oil spills, fuels, and/or hydraulic juices.
• It may be used as a roadway after only 24 hours of being placed.
• This roller compacted concrete is gobbling less time for construction.
• This roller compacted concrete is cost-effective and brisk construction.
• Roller compacted concrete doesn't buckle under ponderous concentric loads.
• Also, it reduces cement consumption as lissom concrete blends are also used.
• Also, it reduces cement consumption as concrete blends are routinely utilized.
• The cost of formwork is diminished or eradicated due to the layer placement method.
• There is not any concern about the discharge of lofty heat during the drying of concrete.
• Roller compacted concrete has a plain surface, and no pits & holes are contemporary in it.
• Roller compacted concrete surface is smooth & plain and there are also no potholes present.
• Roller compacted concrete doesn't crumble under ponderous concentric loads i.e., can withstand massive loads.
• Transportation costs, placement, and compaction of concrete are minimized, as a result, the concrete is handled by dump vehicles, sprinkled by the bulldozers, and squeezed by vibration rollers.

Disadvantages of Roller Compacted Concrete:

• Reveling of cracks.
• Adept workers are required.
• Smoothness is onerous to attain.
• Dams constructed or renovated with roller-compacted concrete may undergo water leakage.
• In roller compacted concrete dams, the drainage gallery often surges construction time and additionally surges costs.
• Although it's accustomed to design RCC dams efficiently, in comparison to other dams because of the low-cost option, there are situations which will make RCC costlier.
• Situations where Roller Compacted Concrete might not be germane is when aggregate material isn't considerably accessible, the foundation rock is of abysmal quality, or where foundation conditions can result in imprudent differential settlement.

Advantages of Road Roller:

• They are secure.
• The road rollers are brawny.
• To engender a finish that's easy to the eyes and effortlessly works out, the road rollers are utilized.
• The vehicles are effortless to utilize and to handle everything the project demands, the road roller is befitting.

Disadvantages of Road Roller:

• Cost is lofty.
• Noise is illustrious.

Why Use Roller in Compaction?

Types of Rollers

• Cylindrical Roller. 
• Sheepsfoot Roller.
• Pneumatic Tyred Rollers. 
• Smooth Wheeled Roller. 
• Vibratory Rollers.
• Grid Rollers.

Analysis of Use of Road Roller

What Are Rollers?

Roller Types

• Cylindrical Rollers. One type of walk-behind roller is a cylindrical roller.
• Grid Rollers.
• Pneumatic Rollers.
• Sheepsfoot.
• Smooth Wheeled or Static Rollers.
• Vibratory Rollers.

Smooth Wheel Roller Advantages and Disadvantages

• Effective compaction
• Versatility
• High productivity
• Good stability
• Good maneuverability

• Limited compaction depth
• Limited traction
• Uneven compaction
• High cost
• Limited efficiency on rough terrain

Smooth-Wheeled Roller

What Is the Purpose of Rollers Placed Under the Equipment?

Static Roller Vs Vibratory Roller

Types of Rollers for Compaction

• Sheepsfoot Roller. These rollers are unique due to the round or rectangular protrusions all over the roller – these are also often called “tamping rollers”.
• Smooth-Wheeled Roller.
• Grid Rollers.
• Vibratory Rollers.

Single Drum Road Roller

Road Roller Types

• Grid rollers.
• Smooth wheeled rollers.
• Pneumatic tyred rollers.
• Sheepsfoot rollers.
• Single drum rollers.
• Double drum rollers.
• Padfoot/ Tamping rollers.

Smooth Wheeled Tandem Roller

How Many Types of Roller?

Road Roller Machine

Pneumatic Roller Uses

• What Is Kerb in Road
• Layers in Road Construction
• What Is Dressing of Stone | Types of Dressing of Stone
• Floating Slab Vs Monolithic Slab | What Is Monolithic Slab | What Is Floating Slab
• RCCFull Form | What Is RCC | Advantages & Disadvantages of Reinforced Cement Concrete | Properties of RCC | What Does RCC Stands for
• What Is a Cavity Wall | How to Build a Cavity Wall | Cavity Wall Detail | Cavity Wall Thickness | Cavity Wall Insulation Pros and Cons | Brick Cavity Wall
• What Is Oblique Drawing | Oblique Drawing Examples | What Is Oblique View | Oblique Projection | Oblique Shape | Cabinet Oblique | What Is Cavalier Drawing
• Which of the Following Is a Way That Slopes Fail | Types of Slope Failure | Geotechnical Failures | Types of Slopes in Geography | Causes of Slope Failure | Slope Stability
• What Is Pier and Beam Foundation | Advantages & Disadvantage of Pier and Beam Foundations | Pier and Beam Foundation Design | How to Build a Post and Pier Foundation