Gunite is a dry-mix process for the pneumatic application of concrete. Although the term is often used interchangeably with shotcrete, gunite was the proprietary product name for the original invention. Sprayed concrete is one of the solutions used in trenchless rehabilitation.
Gunite is a cost-effective way to repair defective sewer or water pipes rather than replacing them.
Trenchlesspedia Explains Gunite
In 1911, the inventor Carl Akeley received a patent for a product he called Gunite. He had used the dry-mix concrete spray during repairs of the Field Columbian Museum in Chicago in 1907. The product name came from the nickname for his invention, “cement gun.” Even after other manufacturers had developed similar products under the broader “shotcrete” term, the word gunite continues to be commonly used in the construction industry for any pneumatic application of concrete, wet or dry.
Gunite has many uses in different industries. It is well known as a technique in the installation of underground pools. When applied manually, the proper spraying of dry-mix concrete requires expertise and experience. Automated processes are used in the trenchless rehabilitation of underground pipe.