Shotcrete and Gunite: What’s the difference?

March 9, 2015

As you search for a reliable shotcrete contractor, you might notice that the terms “shotcrete” and “gunite” are often used together. Some people refer to these as synonyms for the same process, while others insist there is a difference between the two processes. At Thorcon Shotcrete and Shoring, we believe it’s important for you to be informed about our construction processes, whether you are searching for a gunite pool, a shotcrete wall or general shoring services. With that in mind, here are some facts to clear up the confusion surrounding shotcrete and gunite.

 

  • Shotcrete solutions can come in two forms: wet-mix and dry-mix. The dry-mix method uses pre-blended, dry materials and the water is added as the mix is released through the application nozzle. The wet-mix method uses similar materials, but the water is added before the mix is sent through the hose. The biggest difference in application, then, is at what point water is added to the mix.
  • “Gunite” is actually an old trade term, originally claimed by Allentown Equipment (now owned by Putzmeister America, Inc.) when they began selling dry-mix shotcrete application equipment. Now, the term is used throughout the industry by many companies who provide both dry and wet-mix shotcrete services.
  • “Shotcrete” is an all-inclusive term, used to refer to both wet and dry-mix shotcrete applications. While many of us within the industry colloquially use “shotcrete” to refer to wet-mix and “gunite” to refer to dry-mix, this is technically incorrect. “Shotcrete” refers to both wet and dry processes.
  • The American Shotcrete Association has weighed in on the debate, removing the term “gunite” from the discussion entirely. They claim that the most correct terminology should refer to both processes as “shotcrete” and to specify in each case whether the dry or wet-mix method is being used.
  • At Thorcon, we consider the terms to be generally interchangeable, though we most commonly use “gunite” to refer to the dry process, as is common within the industry. We include both terms within our new website to make sure that you can find what you’re looking for as you review our services. We are always happy to clarify our specific processes with our customers, though, and we encourage you to contact us with any questions you might have concerning the shotcrete/gunite process.

Thorcon Shotcrete and Shoring is located in Littleton, Colorado and we conveniently provide the Denver area with our variety of services. We also serve the state of Colorado as a whole as well as other states within the region. Please contact us for a quote or questions about our shotcrete and shoring services. We always provide custom solutions and the best in high-quality, client-oriented service.