What Are the Advantages of Road Roller？

A road roller is a compactor-type engineering vehicle that was first invented by Alois Hamm and is utilized to compress soil, gravel, asphalt, and concrete for the construction of roads and foundation beds.

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Firstly horses were used to drag the drum to fulfil the requirement of the roller,  later a steam-powered engine was used. Eventually, the steam-powered engine was replaced by other sources like diesel or petrol-powered engines.

Road rollers can weigh around 1-20 tons.

The main purpose of road roller is to remove the voids present in the soil, gravel, or concrete making them solid, stable, and dense.

Heavier the roller, and compression will be successful.

It contains various components like a diesel engine, a cover to protect the driver, a drum ( vibratory smooth drum or statics smooth drum), a water system, tires, and a compaction meter to consider the compaction level.

Single Drum Roller Double Drum RollerTriple Drum RollerIt contains only one drum at the front with wheels on the back.It has 2 drums without wheels.It has 3 drums without wheels.It can move faster.Comparatively, it moves slowly.It is slower.It is lighter.It is heavier.It is heavier.It has more traction and mobility.It has less traction and mobility.It has lesser traction.

  2. Types of Road Roller  

There are 6 types of road rollers which are explained below.

  a. Grid Roller  

The grid roller has a grid-like pattern in the steel drum.

It is generally towed behind the tractor or other heavy machines.

The grid may be ballasted with a concrete block or steel attachment for more contact pressure.

It provides low-kneading action.

It is not best for clayey soil, silty clay, uniform soils, etc.

It can be operated at a speed of 5-24km/hr.

This roller type contains steel bars placed in a grid pattern on the drum that serves a high-contact pressure to the soil. Because of this design, these machines are well suitable for compressing coarse soil and working on the subgrade and sub-base road construction projects.

Grid rollers are made of a cylindrical heavy steel surface comprising a network of steel bars which form a grid with square-shaped holes.

It is normal for the roller to be ballasted with concrete blocks. This type of roller is normally a pulling unit and serves a high contact pressure but minimum kneading action.

Uses: Compaction of well-graded coarse soils and weathered rocks.

  b. Smooth Wheeled Rollers  

It is also known as a Static Roller.

Its total weight is about 8-10 tons but the weight can be added by ballasting the inside space of the roller drum with water or wet sand.

It serves 100% ground coverage

It is of 2 types:

I. Three-wheeled Roller

This roller contains 2 wheels at the rear and 1 wheel at the front. Three-wheel road roller has bigger and heavier rolling drums prepared to give a better performance during the process of compacting.

II. Tandem Roller / Double drum Roller

This roller has 1 wheel at the front and 1 at the rear. The tandem, or double drum roller, has one steel drum in the front and one in the back.

As the two drums proceed, this also proceeds the roller. The efficiency of the tandem roller results from the two drums whole sections of a highway can be flattened and paved rapidly and efficiently.

It is useful when the material does not need high pressure.

Uses: large and gradual surface like asphalt, finish the top layer, etc.

Pros:  flatten and pave the whole section rapidly and successfully.

  2.3 Pneumatic Tyred Roller  

The pneumatic roller is a type of road roller that is made of a heavily loaded wagon with many rows of 4 to 6 closely spaced tires.

It provides uniform pressure throughout the width with an 80% coverage area.

The pneumatic roller is also known as a rubber-tired roller.

The weight and air pressure of the tires can be placed to meet the desired certain pressure on a site.

They are mainly utilized for pavements and can help smooth out and polish a pavement, but are also best for cold-laid bituminous or cold mixed pavements and layers of loose soil. 

The tire pressure is approximately 7kg/cm².

It provides better static penetration into the materials.

Rolling non-plastic silt and silty soils. Intermediate rolling of asphaltic concrete.

These rollers are used for the compaction of coarse-grained soils with some fines. The total weight of the roller can rise from 11.0 tonnes to 25.0 tonnes or more by ballasting with steel sections or other ways.

Uses: This roller is mainly used for pavement, soft base coarse material, layers of loose soil, cold laid bituminous and asphalt, etc

  2.4 Sheepsfoot Roller/Tamping Roller/ Padfoot Roller  

Sheepsfoot roller is a type of static or vibration type roller with round and rectangular lumps known as “lugs” and “feet” fixed on it. Sheepsfoot roller is also known as Padfoot or tamping rollers. They’re one of the best for compacting soil and silty clay in the field of road construction work

The lugs that are fixed on the drum are :

I. Spindle-shaped broad base

II. Clubfoot type

III. Prismatic type

The area of lugs or feet may vary from 30 to 80 cm².

Its coverage area is about 8% to 12%.

In wet conditions, the Tamping roller is utilized mostly. The layer thickness of the compacting soil must not be below the minimum of 50mm, which depends on the length of the foot. This is one of the main disadvantages of sheep foot rollers.

It is mainly utilized for the compaction of cohesive soil ( i.e, heavy clay, silty clay).

The drum weight can be increased either by ballasting with water, or damp sand or by mounting a steel section.

a. Has a steel drum fitted with ‘feet’ of one type or another

For example, sheepsfoot, wedge foot, and pad foot

b. Compacting layer up to 250 mm

c. Normal compaction for clay, clayey gravel, and sandy clays

d. Poor performance on sandy gravels o Not suitable for compact sand.

Uses: compacting soil, silty or wet clay, embankment, and subgrade layer in pavement, road, and railway projects.

  2.5 Cylindrical Roller  

A cylindrical roller is a traditional type of roller that is lightweight.

It is a type of walk-behind roller, typically drawn by hand and sometimes powered by an engine.

It is about 1 meter in diameter and 1.5 meters in length and is made up of iron, stone, or concrete.

The ground pressure induced by this type of roller is about 7kg/cm^2.

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Uses: Mainly used for private projects, yard work, etc.

  2.6 Vibratory Roller  

The vibratory roller is similar to a smooth-wheeled roller with a steel drum of 0.9-1.5 meters in diameter and 1.2-1.8 meters in width.

It comes at a higher cost.

The drum imparts vibration by the rotation of an eccentric shaft inside.

A vibratory roller is a compactor having a drum utilized to densify soil, asphalt, or other materials through the use of combined static and dynamic forces to raise the load-bearing capacity of the surface. Vibratory rollers can totally cover the area below the wheel.

Just depending on static force (weight of the drums), a vibratory roller employs vibrating force to perform a more powerful effect. A rotating or reciprocating mass permits the drums to vibrate. The insertion of the vibrating force permits better work and higher compaction levels.

Uses: compacting granular base course, asphalt, crushed rock, and gravel and mostly for compacting in higher depths.

  3. History of Road Roller  

The first roller was horse-drawn and probably borrowed farm implements.

Since the usefulness of a roller varies to a large extent on its weight, self-powered vehicles put back horse-drawn rollers from the mid-19th century. The first such vehicles were steamrollers.

Single-cylinder steam rollers were majorly employed for base compaction and run with high engine revs with low gearing to advance bounce and vibration from the crankshaft through to the rolls in much the same manner as a vibrating roller.

The double cylinder or compound steam rollers started popular from around onwards and were used majorly for the rolling of hot-laid surfaces due to their smoother running engines, but both cylinder types are efficient in rolling the finished surface.

Steam rollers were usually dedicated to work by their gearing as the slower engines were for base compaction whereas the higher geared models were usually referred to as “chip chasers” which tracked the hot tar and chip laying machines. Some road companies in the US employed steamrollers through the s.

In the UK some remained in service until the early s. As internal combustion engines enhanced during the 20th century, kerosene-, gasoline- (petrol), and diesel-powered rollers slowly changed their steam-powered counterparts.

The first internal-combustion-powered road rollers were similar to the steam rollers they are changed. They used a similar method to transfer power from the engine to the wheels, typically large, exposed spur gears.

Some users opposed them in their infancy, as the engines of the era were generally hard to begin, particularly the kerosene-powered ones. Virtually all road rollers in service today employ diesel power.

  4. Manufacturers  

ABG (Germany) – SD/TD (purchased by Ingersoll Rand and now part of Volvo CE)

Albaret (France) – PT/TD (now part of Caterpillar)

Ammann Group (Switzerland)

Aveling-Barford (England) – TD/PT/3P

BOMAG (Germany) – SD/TD/PT (BOMAG/HYPAC in the USA market)

Case CE (USA) – SD (brands the Ammann/Sta machines as Case in the USA)

Caterpillar Inc. (USA) – SD/TD/PT (has the former lines of RAYGO, BROS and Bitelli)

Dynapac (Sweden) – SD/TD/PT/3P

Galion (USA)-

Hamm AG (Germany) – SD/TD/PT/3P (now part of the Wirtgen Group)

HEPCO (Iran) – SD/TD/PT/3P

Hitachi (Japan) – SD/TD/PT/3P

Huber Company, (USA)

Hyster (USA) – SD/TD/PT (part of HYPAC and Bomag USA)

Ingersoll Rand (USA) – SD/TD/PT (now owned by Volvo)

Kamani Engineering Corporation (India) – tractor-mounted (now part of the RPG Group; production ended c.-)

LiuGong, HQ at Liuzhou, China

Marshall (England) – TD

Sakai Heavy Industries (Japan) – SD/TD/PT/3P

Sany (China) – SD/TD/PT

World Equipment(China) – SD/TD/PT

Tampo (USA) – SD/TD

Vibromax (Germany) – SD/TD/PT (purchased by JCB, now branded JCB)

Wacker Neuson (Germany)

Note:

SD = Single drum

TD = Tandem drum

PT = Pneumatic tyre — Rubber tyres or multi-tyre are also common

3P = 3-point rollers — These are very similar to the old steam roller design

  5. Advantages of Road Roller  

The advantage of road roller is;

a. It is easy to handle and use.

b. It is safe and powerful.

c. It is easy to eyes and can work as we desired.

  6. Disadvantage of Road roller  

The disadvantage of road roller is;

a. They are costly.

b. Cause noise pollution.

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Are you looking for a road roller to help you construct smooth and even surfaces in your work area? The double drum vibratory road roller is an ideal machine that can be used to flatten or compact the soil, asphalt, gravel, sand and other materials on roads. With its power-packed performance, this machine ensures professional results when working with complicated terrain areas as well as soil compaction jobs. This article will discuss why this equipment can be a great choice for those who need to create durable roads!

What is a Double Drum Vibratory Road Roller and How Does it Work

A double drum vibratory road roller is a heavy-duty piece of construction equipment used to compact and flatten surfaces like asphalt and soil. At first glance, it might seem like a simple machine – just two large drums rotating back and forth. But the inner workings of this piece of equipment are actually quite complex. The double drum roller uses a system of hydraulic pistons and vibrating weights to create high-frequency vibrations in the drums. These vibrations not only help to compact the surface being worked on, but also improve its overall density, making it more durable and longer-lasting. With a double drum vibratory road roller, construction crews can work quickly and efficiently, paving the way for smooth and safe roads for years to come.

Benefits of Using a Double Drum Vibratory Road Roller

Double drum vibratory road rollers are essential machines in construction and roadwork projects. These rollers have two drums that create a smooth and even surface on the road. The benefits of using a double drum vibratory road roller in construction are numerous. One of the significant benefits is that they save time and money. The roller can compact material faster and therefore complete the work faster. They also reduce the number of passes required to achieve a good finish, which saves on labor costs. Additionally, the double drum vibratory road roller helps in reducing air pockets within the surface, which makes it more durable and prevents damage from heavy traffic. Overall, investing in a double drum vibratory road roller is a wise choice as it helps fast track construction and maintenance projects, saving you time and money in the long run.

Advantages of a Double Drum Vibratory Road Roller Over Other Types of Rollers

Double drum vibratory road rollers are making waves in the road construction industry, and for good reason. These rollers come equipped with two steel drums that vibrate simultaneously, making them an ideal choice for compacting asphalt and other materials. They provide several distinct advantages over other types of rollers, including improved efficiency, greater compaction force, and increased stability on rough terrain. Additionally, the use of two drums means that they can work faster and cover more ground in a shorter amount of time, saving time and money on construction projects. With these benefits in mind, it is no wonder that construction companies are turning to double drum vibratory road rollers to help them get the job done quickly and efficiently.

Safety Considerations When Operating a Double Drum Vibratory Road Roller

When operating a double drum vibratory road roller, there are important safety considerations to keep in mind. These machines are powerful and can weigh up to 14 tons, making them potentially dangerous to both the operator and those nearby. One important safety consideration is to always wear the proper personal protective equipment, including a hard hat, high-visibility clothing, and steel-toed boots. Additionally, it’s critical to ensure that all workers are clear of the operating area before the machine is turned on, and to always be aware of other workers and vehicles on the job site while operating the roller. By keeping safety in mind at all times, you can help ensure that your work site remains accident-free and everyone goes home safely at the end of the day.

Common Maintenance and Repair Procedures for a Double Drum Vibratory Road Roller

Maintaining a double drum vibratory road roller can be a challenging task, but it is necessary if you want to ensure that it remains in optimal condition. One of the most important procedures is to regularly inspect and change the oil and filters, which helps keep the engine running smoothly. Another crucial process is checking and maintaining the hydraulic system, including hoses, pumps and cylinders. Over time, these components can become worn and damaged, so regular inspections and replacements are essential. The roller also requires regular greasing, which can help prevent excessive wear and tear on key components such as bearings and gears. With proper maintenance and repair, your double drum vibratory road roller can offer years of dependable service on the toughest job sites.

Tips on Choosing the Right Double Drum Vibratory Road Roller for Your Project

When it comes to road construction projects, choosing the right equipment can make all the difference. The double drum vibratory road roller is a popular choice for compacting soil, gravel, and asphalt. But with so many different models and brands available, it can be overwhelming to find the perfect roller for your project. You’ll want to consider factors like the size and type of your project, the weight and power of the roller, and the durability and maintenance required. By doing your research and choosing wisely, you can ensure that your road roller helps you achieve a successful and efficient project.

As evidenced through this blog post, double drum vibratory road rollers provide an effective and efficient way to perform asphalt compaction. They offer numerous benefits that make them highly sought-after, including their ability to create a level surface, the powerful vibration they produce, and their safety features. When it comes to maintaining or repairing one of these machines, it’s important to follow the manufacturer’s instructions and take extra precautions as needed. Moreover, considering the different types of double drum vibratory road rollers out there, selecting the right one for your project is key—so make sure to do your due diligence when making a purchase. Ultimately, if you’re looking for a superior asphalt compaction solution for your next construction endeavor look no further than a double drum vibratory road roller. So don’t hesitate—take action today and get the best results possible!