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Shotcrete Vs Gunite | What Is Gunite | Advantage & Disadvantage of Guniting Process | What Is Shotcrete | Advantage & Disadvantage of Shotcreting

Shotcrete Vs Gunite

Important Point

  • Introduction of Shotcrete Vs Gunite
  • What Is Guniting?
  • Advantage of Guniting Process:
  • Disadvantage of Guniting Process:
  • What Is Shotcrete?
  • Advantage of Shotcreting:
  • Disadvantage of Shotcreting:
  • Difference Between Shotcrete and Gunite
    • What Is Gunite?
    • What Is Shotcrete?
    • Shotcrete Vs Gunite
    • Gunite Vs Concrete
    • Is Gunite Stronger Than Concrete?

Introduction of Shotcrete Vs Gunite

  • Shotcreting and Guniting are one of the most important and widely used techniques in construction.
  • The purpose of using the shotcrete and Guniting method is the same but the process of application is different.
  • Guniting and shotcreting are both different techniques. Many people do not know the difference between Guniting and shotcreting.
  • Sprayed concrete is widely used in the construction of tunnels, underground structures, slope stabilization, structural repairs, and swimming pools
  • In this article, you will get to know about the guniting and shotcreting process and the difference between Shotcrete and Gunite.

What Is Guniting?

Guniting

  • Guniting is a technique that consists of the pumping of mortar or concrete at a high velocity through a hose or spray gun to apply on the surface.
  • The Guniting process is also known as Dry Shotcreting. It is a process of spraying a mix of mortar or concrete at high pressure to the surface with the help of spray gun.
  • Guniting is one of the most effective techniques which is widely used for the repairing of the concrete which is damaged.
  • Guniting process is used in the slope stabilization dome construction of retention walls water tanks and pools etc.
  • The process of converting has wide applications such as the strengthening of old structures, lining of the reservoir and canal, waterproofing of the surface which come directly with the contact of water.

Also, Read: What Is Guniting | Set Guniting Systems | Advantage | Disadvantage

Advantage of Guniting Process:

The various advantages of guniting process are as follows

  • The Guniting process is economical as compared to other types of method.
  • The dry mix can be prepared quickly as compared to the wet shotcreting mix.
  • The guniting process is used in swimming pools and artificial caves to provide special shapes and features.
  • The High compressive strength of the concrete can be obtained with guniting process.

Also, Read: Tributary Area | Tributary Area Examples | Tributary Width | Tributary Load | Tributary Area in Columns | Overview of Tributary Area

Disadvantage of Guniting Process:

The various disadvantages of Guniting process are as follows

  • The dry mix of concrete can clog or block the hose pipe during the application of concrete.
  • The process of Guniting required a skilled operator.
  • The quality of the work depends upon the operator.
  • In this method, there may be chances of wastage of concrete.

Also, Read: Types of Roof Tiles | Tile Roof Replacement | Tile Installation Cost | Roofing Tile Price | Ceramic Tile Price Per Square Foot | Tile Installation Factors

What Is Shotcrete?

Shotcrete

  • The term Shotcrete itself says that it is a technique in which the concrete is shot out through the hose is known as Shotcrete.
  • Shotcrete is sprayed on the surface through a hose at a high velocity. Shotcrete is used with both wet mix as well as dry–mix
  • Shotcrete can be done with both dry mix or wet mix. Shotcrete is placed and compacted properly.
  • Dry mix process for shotcreting, in which water is added to the concrete mix at the nozzle.
  • Wet mix process involves the mixing of all the ingredients required for concrete. In the case of wet-mix shotcrete process, the water content is controlled more accurately as compared to the dry-mix method.
  • Shotcreting is the best method in which the concrete mix is applied in layers under the pressure of compressed air.
  • The water cement ratio for shotcrete normally ranges within 35 to 0.50 by mass which is somewhat lower than for most conventional concrete mixes.
  • Shotcreting process is done with the special unit which consists of a mortar gun. The dry mix of cement sand and aggregate is prepared in the appropriate proportion for the process of shotcreting.
  • There are different types of shotcreting machines are available which help to control the complete process and make it easy.
  • The Shortcrete is widely used for the repairing of the structure and earthquake damage. Shotcreting method is very helpful in underground mining.

Also, Read: What Is Shotcrete | Shotcrete & Concrete | Shotcrete Technology | Types of Shotcrete Technology | Advantages of Shotcrete | Disadvantages of Shotcrete

Advantage of Shotcreting:

The various advantages of shotcreting process are as follows

  • The process of shotcreting forms a strong and uniform layer of concrete on the surface.
  • The shotcreting process is more economical as compared to conventional concrete which required formwork.
  • Shotcreting is suitable for the construction where the formwork cannot be installed.
  • The concrete can be applied to one nozzle from a safe distance.

Also, Read: What Is Concrete Resurfacing | How to Resurface Concrete | Concrete Resurfacing Material | Concrete Repair and Resurfacing

Disadvantage of Shotcreting:

The various disadvantages of shotcreting process are as follows

  • The concrete in the process of shotcreting is premix so that it is necessary that it has to be applied quickly.
  • There may be chances of developing crack if more water is added in the premix concrete.
  • The process of shotcreting is a little bit expensive as compared to guniting process.

Also, Read: What Is a Partition Wall | Uses of Temporary Interior Wall | Walling Materials | Types of Interior Wall Materials | Types of Partition Walls

Difference Between Shotcrete and Gunite

The difference between shotcreting and Guniting are as follows

Sr.No.

Shotcreting

Guniting

1 Shotcreting is a technique of spraying of concrete on the surface at high pressure. Guniting process is a technique of spray mix of mortar and concrete at high velocity.
2 The Shotcrete process can be done with both dry mix as well as wet mix. The guniting process is carried out with only dry mix. It is also known as dry shotcreting.
3 In the shotcreting process large size of aggregates can be also used. In the guniting process small size of aggregates are used.
4 Shotcreting process is used for or large quantity of work. Guniting or dry shotcreting process is used for the small quantity of work
5 Formal operating labours can be also work ok in the shotcreting process. High skilled labour is required for the greeting process.
6 The waste created by the sprayed concrete in case of shotcreting process is less. The waste created by the spread concrete in case of guniting process is more.

Also, Read: What Is Fire Escape Staircases | Types of Fire Escaping Stairs | What Is the Importance of Fire Escape in the Building | What Are the Fire Staircase Requirements


Short Note

What Is Gunite?

Gunite is the popular trade term for dry-gun concrete, while shotcrete is the common term for wet-gun concrete. With the gunite method, the dry concrete ingredients are placed into a hopper and then pushed out pneumatically through a hose to a nozzle.

What Is Shotcrete?

Shotcrete or sprayed concrete is concrete or mortar conveyed through a hose and pneumatically projected at high velocity onto a surface, as a construction technique, first used in 1914. It is typically reinforced by conventional steel rods, steel mesh, or fibres.

Shotcrete Vs Gunite

Gunite and shotcrete are essentially the same material, but they are applied with different processes.

  • Gunite is the popular trade term for dry-gun concrete, while
  • shotcrete is the common term for wet-gun concrete.

Gunite Vs Concrete

Firstly, unlike concrete, which uses large and small aggregates, gunite only uses small particles. As we stated earlier, concrete comes ready mixed. With gunite, on the other hand, a dry mix is fired through a hose with the water being added at the point of delivery.

Is Gunite Stronger Than Concrete?

when building gunite pools, you can stop and start without any problems, which will help give a smoother finish. Using gunite can be more time-consuming to apply than concrete because you need to do the mixing on-site, and there could also be hold-ups if the dry mix clogs up pipes during the process.

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By Krunal Rajput

About Krunal Rajput

Hey, I am Krunal Rajput. The Man Behind CivilJungle. I started this site to spread knowledge about Civil Engineering. I am a Degree Holder in Civil Engineering.

You can find him on Facebook, Twitter, Tumblr, Instagram and Google News.

Comments

  1. ProAll says

    15th July 2021 at 12:30 pm

    If you are looking for pool builders and mixers for producing Gunite and Shotcrete, get in touch with ProAll INC. They have a fantastic range to suit different requirements whether big or small. You can reach them through their website or directly via call.

    Reply

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