Shotcrete Training

A cement mixer is not needed in shotcrete applications.

Cement is usually poured into a form, using gravity as an aide, from a cement mixer. But for some construction or building projects, cement needs to be applied into areas that cannot be accessed by a mixer. When this is the case, shotcrete, or blastcrete, a method that sprays concrete in any direction, is used. Being a shotcrete technician involves the operation of spray equipment, which requires training for proficiency.

Types

The types of training reflect where shotcrete is commonly applied. The two major categories are designed for applications below and above-ground. Below-ground training is for cellar, tunnel or mine-shaft applications. Above-ground training teaches shotcrete methods for residential, commercial and industrial construction. Certification is supplied by the American Shotcrete Association.

Features

For above and below-ground applications a technician must be trained in dry and wet-mix concrete. Trainees will go through wet and dry mixing methods for below and above ground uses. There will be training for nozzle types, maintenance and use. Trainees will go through test sessions in which shotcrete is applied onto various surfaces (wood and soil) and in different manners (arcing from horizontal to vertical). A technician, apart from the application process, must know how to build the forms that receive the shotcrete.

Cost

A training application will cost between $175 to $250. This package is broken down into one training session for dry-mix and another for wet-mix. For the complete training package, there can be additional expenses: travel; separate educator fees, equipment and materials.

Time Frame

Training takes on average one day, six to eight hours. The American Shotcrete Association holds rotating training sessions in which educators will travel to cities, train a group in that city for one day and then move on to another location.

Considerations

The training for dry and wet-mix concrete applications can be taken separately or combined into one package. A shotcrete technician, who has received training and has at least five years of shotcrete experience can become a shotcrete educator and a nozzle examiner. Certification through the ASA is required for an educator and examiner.

References

• Shotcrete: ASA Certification
• Blastcrete: Training
• 2010 Shotcrete Training Application
• Shotcrete Training Info and Training Schedule
• Deere and Ault: Shotcrete Training and Certification

Resources

• SCS Mining: Shotcrete Training
• Shotcrete: Certification