Repair & Restoration

Shotcrete is often the best alternative when repair and restoration are being contemplated and can be the ideal application method for both reinforced and nonreinforced construction. From tanks and pools to chemical and automotive to retaining walls and highway structures, the opportunities are endless.

The shotcrete professional must be able to integrate new materials with in-place construction to form a composite that will stand up to exposure and use. As important as the materials is the coordination of effort from a properly qualified contractor, materials supplier, engineer, and architect. When all of these pieces are in place, the exceptional benefits of the shotcrete process are realized.

  • Bridges
  • Parking Garages
  • Dams & Reservoirs
  • Seismic Retrofit
  • Marine
  • Sewers

Resources

Join ASA Today!

Grow Your Business

  • Network with your peers in the shotcrete industry
  • Stay Current on the latest shotcrete industry trends, strategies, challenges, and opportunities
  • Receive Project Leads through project bid alerts and project listings
  • Gain Exposure through a variety of tools available to members, such as the ASA Buyers Guide
  • Influence ASA’s direction in serving members and growing the industry
  • Save significantly on ASA products and services

Grow Your Industry

  • Educate the construction world on the advantages of the shotcrete process through in-house presentations to engineers and specifiers
  • Promote the benefits of shotcrete at national trade shows
  • Coordinate proper specification of shotcrete in private and public specifications and national codes and standards
  • Engage DOT and other Public Authority officials with a variety of ASA resources and outreach efforts
  • Take advantage of Targeted Marketing in national and regional organizations and publications
  • Enable owners and specifiers to embrace shotcrete with a portfolio of tools designed to give them an understanding of and confidence in the shotcrete process

At a time when more and more companies are demanding effective use of their dollars, more companies in the shotcrete industry are realizing the benefits of becoming an ASA Sustaining or Corporate Member.

Shotcreter

  • ACI Wet-Mix Shotcreter Certification
  • ACI Dry-Mix Shotcreter  Certification

Shotcrete Inspector

  • ACI Shotcrete Inspector Certification
  • WU Certified Pool Shotcrete Inspector

Contractor Qualification

  • ASA Qualified Contractor (Level I or II)
  • ASA Qualified Pool Contractor (for self-performing)

American Concrete Restorations Inc

QSC Wet-Mix – Level II

Coastal Gunite Construction Company

QSC Dry-Mix – Level II

CONSOLIDATED SHOTCRETE INC.

QSC Wet-Mix – Level II

CROM LLC

QSC Wet-Mix – Level II

Dees Hennessey Inc

QSC Wet-Mix – Level II

Drakeley Pool Company LLC.

QSC Wet-Mix – Level I

Serenity Hardscapes LLC

QSC Wet-Mix – Level I

Top Gun of Virginia Inc

QSC Wet-Mix – Level II

Code of Conduct

An ASA Qualified Shotcrete Contractor shall adhere to the following Code of Conduct: “As an ASA Qualified Shotcrete Contractor, we agree to ongoing compliance with the requirements and standards set forth in the ASA Shotcrete Contractor Qualification Program description. We will not knowingly or purposefully violate any project specifications or requirements. We agree to maintain required insurance coverage, staff our projects with trained and certified personnel, and strive to produce a high-quality product in a safe and professional manner.”

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Shotcrete has often been described not as a material but as a process. Both wet and dry processes produce a material that exhibits superior hardened properties to high quality conventional concrete, such as high strength, low permeability, and high durability.

Although the hardened properties of shotcrete are similar to conventional cast-in-place concrete, the nature of the shotcrete placement process provides additional benefits, such as excellent bond with most substrates and instant or rapid capabilities, particularly on complex forms or shapes.

The properties of both wet- and dry-process shotcrete can be further enhanced through the addition of many different additives or admixtures such as:

  • Silica Fume — Provides reduced permeability, increased compressive and flexural strength, increased resistance to alkali and chemical attack, improved resistance to water washout, reduced rebound levels, and allows for thicker single pass applications;
  • Air-Entraining Admixtures — Improve pumpability and adhesion in wet-process shotcrete and freeze-thaw durability in both wet and dry processes;
  • Fibers — Control cracking, increase toughness values, improve impact resistance and energy absorption; and
  • Accelerators — Improve placement characteristics in adverse conditions, allow for thicker single pass applications, increase production capabilities, and reduce the occurrence of fallouts on structures subjected to vibration.

The numerous advantages of the shotcrete process are especially evident when viewed from a sustainability point of view. Unlike many sustainability claims that are based on political or social ideals that are often difficult to quantify and substantiate, the sustainability advantages of the shotcrete process directly and positively impact the economic side of a project, falling in-line with traditional business decisions such as material, labor, and time savings as well as improved quality.

In addition to the following “top ten” sustainability advantages of shotcrete, ASA’s Sustainability page offers a wealth of information on the topic.

  • Formwork savings of 50 to 100% over conventional cast-in-place construction;
  • Formwork does not have to be designed for internal pressures;
  • Complex shapes require very little, if any, formwork;
  • Crane and other equipment savings or elimination;
  • Labor savings of at least 50% in repair applications;
  • New construction speed savings of 33 to 50%;
  • Speed of repair reduces or eliminates downtime;
  • Better bonding to the substrate, which enhances durability;
  • Adaptability to repair surfaces that are not cost-effective with other processes; and
  • Ability to access restricted space and difficult-to-reach areas, including overhead and underground.

Wet or Dry?

Although both wet and dry shotcrete have specific benefits, advancements in both material and equipment technology make both processes almost interchangeable. In most applications, the preferred method is determined by:

  • Economics;
  • Availability of material and equipment;
  • Site access; and
  • The expertise and preference of the contractor.

Today, rebound levels, dust levels, and properties such as bond strength, compressive strength, and durability can be similar whether the wet or dry method is used.

Dry Mix
(sometimes referred to as Gunite)
Wet Mix

The shotcrete process is truly one of the most versatile processes available for the use of concrete in both new construction and repairs. Shotcrete can be used in almost any concrete project and typically results in a significant savings of time and money. The following list is a sample of the almost limitless applications for shotcrete.

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Shotcrete Magazine

Shotcrete, the quarterly publication of ASA, is the leading magazine of the shotcrete industry, and is designed to educate and promote the use of shotcrete as a method of placing concrete.

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What’s in the Mix

ASA produces member and nonmember editions of a monthly e-Newsletter titled, “What’s in the Mix.” These monthly e-Newsletters keep you informed of your association’s new products, services, events, and other initiatives.

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Current Sustaining and Corporate Member Shotcrete Magazine Advertisers

  • American Concrete Restorations Inc
  • Basalite Concrete Products - Vancouver ULC
  • Blastcrete Equipment LLC
  • Cancrete Equipment Ltd
  • Coastal Gunite Construction Company
  • Gary Carlson Equipment Co
  • Gunite Supply & Equipment Co
  • LRutt Contracting Ltd
  • Mapei Corporation, UTT
  • Olin Engineering Inc
  • Pure Snug LLC
  • Putzmeister
  • Quikspray, Inc
  • REED Shotcrete Equipment
  • Shotcrete Helmet
  • Sika STM- Shotcrete, Tunneling, & Mining (USA)
  • The Quikrete Companies
  • Western Shotcrete Equipment
  • World of Shotcrete

Concrete in the Cloud

The world is becoming more and more connected and it was only a matter of time before we saw it in the concrete industry as well.