Shotcrete/Sprayed Concrete Market

Source: www.euclidchemical.com

Shotcrete are nothing but a different form of concrete or mortar which can be projected on a surface with high velocity.

It is also known as air-blown mortar, sprayed mortar, pneumatically applied mortar or gunned concrete. Al these names indicate the method of using this concrete.

Ingredients of shotcrete materials are cement, additives, admixtures, and special construction chemicals.

Shotcrete has high strength, durability, low permeability, excellent bond, and limitless shape possibilities. These properties can be enhanced with addition of different admixtures such as fibers, silica fume, accelerators, retarders, plasticizers, etc. These materials make shotcrete highly resistant to heat, water washout, and alkali & chemical attacks.

What makes a shotcrete different from mortar is its method of applying mortar to a surface which gives additional advantages to the dry or wet shotcrete.

Because of spraying action, shotcrete can be used in various surfaces constructions like dams, bridges, Sewers, Tunneling, Mining, Tanks, Domes and many others. It found its applications mainly as structural material for surface coatings in tunnels and mines.

Shotcrete is used in two ways as Dry Mix and Wet Mix. Both dry and wet processes result in the production of material having superior hardened properties as compared to normal concrete. The resulted material usually has high strength and high durability. This is why shotcrete is widely accepted as structural material in different work scenario. 

Source: miningandconstruction.com

The reason why shotcrete is preferred over mortar is the process of implementing shotcrete on a surface. This helps to get stronger bond with different substrates.

Both methods can be used interchangeably. The preferred method is determined by certain factors as Economics, Availability of material and equipment, Site access and the expertise and preference of the contractor.

 In the wet mix process, all ingredients are thoroughly mixed with water and then added to delivery equipment. Delivery equipment is a nozzle or pump which uses com pressed air to spray the mixture with high velocity.

Shotcrete Process has following benefits

•   Ideal for irregular surface applications;
• Allows for easier material handling in areas with difficult access;
• Little or no formwork is required; and
•  Cost effective method for placing concrete.

 Discussing about shotcrete market, there are a few drivers leading to increased demand. These drivers can be of the following

• Underground constructions industry and a range of applications,
•  increasing R&D efforts to make shotcrete highly resourceful, and
• The huge demand from the construction sector which finds shotcrete useful in a myriad of applications.

Growing advancements and technological inventions in shotcrete equipment and materials can found huge potential in the future.

As from the figures from 2012, European region found to dominate the global shotcrete market by revenue while Japan, China, and the U.S. shared 25.8% of the total shotcrete consumption in 2012. The Brazilian shotcrete consumption for end-use applications is expected to grow at 7.9% from 2013 to 2018.

Market players are concentrating on expansion strategy with increasing geographical base. At the same time they are focusing on new product launching, collaboration with similar organizations, acquisition and merger.

There are continuous efforts taking place in R&D to develop new equipments and improved processes so that human efforts can be minimized and work quality gets improved.
  
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