EOP™ – Electro Osmotic Pulse Technology

STRUCTURAL TECHNOLOGIES' proprietary technology provides the ability to mitigate chronic moisture problems in concrete – by lowering moisture transmission and content through concrete’s pore and capillary structure.

Electro Tech CP EOP™ Dewatering System

Electro Tech CP EOP™ is a proprietary electro osmotic system that controls movement of water through concrete under the influence of a pulsating electric field. An electrochemical solution, this state-of-the-art technology has been engineered by STRUCTURAL TECHNOLOGIES for various applications to control moisture and corrosion in concrete.

In selected applications, this patented system provides the ability to mitigate chronic moisture problems in concrete – by lowering moisture transmission and content through concrete’s pore and capillary structure. It can be used alone, or in conjunction with other moisture control solutions to extend the service life of concrete.

Utilizing advanced controllers and components found in Electro Tech CP™ Impressed Current Cathodic Protection Systems, Electro Tech CP EOP™ also provides the ability to eliminate, or slow corrosion of reinforcing steel in concrete.

Electro Tech CP EOP™ is also being developed as a solution to other concrete issues. STRUCTURAL TECHNOLOGIES is testing  the sysetm as a means to mitigate alkali-silica reaction (ASR) in aging concrete. ASR is a destructive process that can lower a structure’s strength and capacity and significantly impact its effective service life.

 

Specialty Products develop by Structural Technologies

In selected applications, the patented Electro Tech CP EOP™ Dewatering System provides the ability to mitigate chronic moisture problems in concrete – by lowering moisture transmission and content through concrete’s pore and capillary structure. It can be used alone, or in conjunction with other moisture control solutions to extend the service life of concrete. 

The Electro Tech CP EOP™ Dewatering System includes four main components:
  • EOP Dewartering Systems
    Controller

    Utilizing our proprietary Electro Tech CP™ advanced controllers and software, a safe, low-voltage DC electric field is applied between the anodes and cathodes and through the structure, while also monitoring system performance and allowing for adjustments to be made to the system through a remote connection.

  • Anodes:
    Probe, mesh, surface applied or other anodes establish a positive electrical charge inside the structure being protected.
  • Cathodes:
    The tips of copper-coated rods carry the negative charge and are strategically placed outside the structure being protected.
  • Reference Cells & Probes:
    Placed within the structure, these probes continuously monitor and regulate such parameters as moisture levels, temperature, voltage, current and corrosion potential.

 

Engineered Solutions for Moisture Control

Mositure Control Soultions

STRUCTURAL TECHNOLOGIES’ Moisture Control Team provides solution building services for difficult-to-solve moisture problems. Our specialty is taking on problems where traditional products and design solutions have failed. Our experts integrate with engineers, owners and builders to assist with initial assessments through design and material selection

Our engineering support services for moisture control include:

  • Investigation and diagnostics for existing structures
  • Budget development
  • Material selection
  • Specialized products for unique applications
  • Specification development assistance
  • Means and methods development assistance
  • Design Assist Services
Solution-Building Areas of Concentration

Coatings Membranes

CoatingsSTRUCTURAL TECHNOLOGIES Solution Builders assist in the selection, design and detailing of various types of coatings and pre-formed membranes. While similar, coatings and pre-formed membranes may differ in overall use and performance

  • Coatings Coatings can be rigid or elastomeric and generally involve the application of material layer(s) to produce a film covering a surface. They can be designed to control water absorption, vapor transmission, and diffusion of aggressive liquids and gasses through the surface of a structure or member. Coatings can be filled with hardened aggregates and minerals to enhance wear and abrasion resistance. We assist in the selection, design and detailing of various types of coatings.
  • Pre-formed Membranes are sheet systems that may be bonded or loose-laid over the substrate. These membranes can be formulated to resist a vast variety of chemical exposures. Sheet systems require heat, tape, adhesives, or solvents to adhere overlapped seams. Sheet systems are factory controlled for thickness, dimensional stability, and internally reinforced for strength. Sheet membranes can have fabrics bonded to either or both sides to enhance mechanical penetration, adhesion, and assist in adhesion.. Typical pre-formed membranes include:
    • Thermosetting polymer sheets,
    • Vulcanized rubber sheets, and
    • Composite systems
 

Grouting / Injection

Chemical injections

STRUCTURAL TECHNOLOGIES Solution Builders assist engineers, owners, and property management agents in product selection, design, detailing and “means and methods” specifications of a wide variety of grouting and crack injection solutions for a wide range of applications.

Chemical grouts are injected under pressure into or around structural elements for either or both moisture control and strengthening. Moisture control pressure grouting is injected into concrete defects within structural elements to make them monolithic. Monolithic concrete is considered water-tight.

Selection of chemical grout(s) is based on many structural, environmental, and chemical compatibility issues. The material properties of the grouts must be matched with the physical nature of concrete defects. Successful grouting practice involves a blend of “art” and ‘science”.

Commonly used and specified grouts include the following:

  • Epoxy (low viscosity)
  • Structural Urethane(s) (One part, two part, various viscosities)
  • Hydrophobic urethanes
  • Hydrophilic urethanes (foams and gels)
  • Polyacrylate (High solids to low solids)
  • Bentonite (Water or plasticizer, activated)
  • Polymeric Gel (High viscosity)
  • Acrylamides (Powder or liquid pre-polymers)
  • Sodium silicates
  • Micro-fine cements
 

Joint Seals

MJS Waterstop Systems

STRUCTURAL TECHNOLOGIES Solution Builders assist in the design and detailing of various types of joint seals .Joint seals are used in a variety of applications across industries and infrastructure types, creating moisture proof seals between the connections of various types of building materials. Joint seals typically deal with either pressure and or movement in performing their function of maintaining a watertight connection at a construction joints where different material come together (or where the design has incorporated the need to compensate for movement within the structure ) .

Joint seals consist of elastomeric glands, initially applied as sealants, preformed polymers, sheet membranes and expanded gaskets. Typical examples include:

  • Pressure-rated waterstop joints
  • Water control sealants- rout & seal
  • Load supporting glands, and
  • Traffic bearing expansion joints


Moisture Control Engineering Team Leader
Brent Anderson, P.E.
Moisture Control Engineering Leader

Brent Anderson, P.E.

Brent Anderson, P.E. has Bachelor and Master’s degrees in Civil Engineering and minors in Architecture and Mechanical engineering. He is a Member of American Concrete Institute, Society of Mining Engineers, International Concrete Repair Institute, Concrete Foundation Association, and American Society of Civil Engineers. He serves on ACI 332 Residential Concrete, and served on ACI 515 Protective Coatings for Concrete. Brent lectures throughout the United States at Higher Education Institutions.

Brent has over 34 years of experience in below-grade foundation and plaza deck waterproofing, chemical grouting with urethanes, micro-fine cements, bentonite's, acrylamides, acrylic’s and epoxies. He performs forensic foundation engineering for concrete problems (cracking,corrosion,deflection, and soil-settlement) and water leakage claims (roofs, cavity walls, building envelope, air/vapor barriers, floors). He has also provided expert witness services for waterproofing systems (products, installation, performance, design, and specification writing) and foundation problems.

ASK ME A QUESTION
 

STRUCTURAL TECHNOLOGIES' licensed engineering services are provided by Structural Technologies StrongPoint, LLC - A Structural Group Company, or through other licensed engineers.
 

Installation Support

Chemical InjectionsSTRUCTURAL TECHNOLOGIES provides construction phase support services to ensure that moisture control and waterproofing systems are installed properly and will carry out their intended functions. We coordinate with builders to provide project-specific oversight, quality assurance and quality control.

 
Turnkey Investigate – Design – Build Solutions

When paired with Structural Group's specialty contracting companies— we provide our clients with Turnkey Investigate-Design-Build services from forensic evaluation, product selection, setting of means and methods, and system installation with single source accountability. Together, we seamlessly integrate to deliver customized, cost-effective, and long-lasting solutions for moisture control problems.

 
 

 


 

STRUCTURAL TECHNOLOGIES — A Structural Group Company

With member companies dating back to 1902, Structural Group is firmly committed to its ongoing mission of making new and existing structures stronger and last longer. Through its member companies, Structural Group delivers turnkey solutions that integrate technology, engineering, and construction. Structural Group provides state-of-the-art products and engineering support services through STRUCTURAL TECHNOLOGIES and specialty contracting services through STRUCTURAL and PULLMAN

Learn more about Structural Group and its member companies.