LifeJacket® - Delivers Optimal Protection

LifeJacket® is a maintenance-free system – its current output self adjusts to meet changes in temperature, humidity, concrete resistivity and a number of other factors, delivering optimum corrosion protection to the structure at all times.

LifeJacket® - Delivers Optimal Protection

LifeJacket® is a maintenance-free system – its current output self adjusts to meet changes in temperature, humidity, concrete resistivity and a number of other factors, delivering optimum corrosion protection to the structure at all times.

LifeJacket® - Delivers Optimal Protection

LifeJacket® is a maintenance-free system – its current output self adjusts to meet changes in temperature, humidity, concrete resistivity and a number of other factors, delivering optimum corrosion protection to the structure at all times.

LifeJacket® Galvanic Cathodic Protection System

Lifejacket on Bridge Columns

The LifeJacket® Cathodic Protection System uses a proprietary zinc mesh anode placed directly against the inside face of a stay-in-place fiberglass form, and is proven to stop corrosion by providing an electrical current to the affected region. This current is produced through a galvanic process and thus, does not require a remote power supply.

The custom fabricated fiberglass jackets are designed and manufactured to fit a wide range of infrastructure shapes and sizes for rapid installation. Along with providing the attachments and components of a cathodic protection system, LifeJacket® also creates a stay-in-place form that is used for a “form and pump” repair of the concrete structure that is being repaired and protected.
 

  • Industrial Lifejacket application

    Customized for Every Application

    The LifeJacket® System may be tailored for nearly any type of structural component. Originally developed for marine piles, STRUCTURAL TECHNOLOGIES has successfully adapted the configuration of the LifeJacket® System for a wide variety of industrial, energy, transportation and commercial applications.

  • Nuclear LifeJacket Installation

    Repairs, Strengthens, Protects

    In addition to providing corrosion protection, the stay-in-place LifeJacket® serves as a form for placement of cementitious repair materials for cross-section loss, adding or restoring capacity to a structure.

  • Custom Made Lifejacket

    Delivers Optimal Protection

    LifeJacket® is a maintenance-free system – its current output self adjusts to meet changes in temperature, humidity, concrete resistivity and a number of other factors, delivering optimum corrosion protection to the structure at all times.

 

LifeJacket® System Component Technical Data

ZINC ANODE
Electrical Conductivity 27% IACS
Zinc Mesh Weight 7.8 Kg/m² (1.6 lb/ft²)
System Weight  17.1 Kg/m² (3.5 lb/ft²)
Average Open Area of Zinc 53%
Current Capacity 738 A•hr/Kg (335 A•hr/lb)
Typical Life Expectancy 25 years, minimum



Glass Reinforced Polymer (GRP) Casing
Water Absorption (ASTM D570) 1% max.
Ultimate Tensile Strength (ASTM D638) 103 MPa min. (15,000 psi min.)
Flexural Strength (ASTM D796) 172 MPa min. (25,000 psi min.)
Flexural Modulus of Elasticity (ASTM D790) 4.8 GPa min. (700 ksi min.)
IZOD Impact (ASTM D4812) 15 ft-lb/inch min.(unnotched)
Barcol Hardness (ASTM D2583) 45 min.

 

LifeJacket® trade name and patents are owned by Jarden Zinc Products, Inc. and are distributed and custom designed for specific application exclusively in the US and Mexico by STRUCTURAL TECHNOLOGIES.
 

STRUCTURAL TECHNOLOGIES’ Corrosion Team provides highly specialized investigative and engineering services. Our team integrates with owners, engineers and builders to provide or assist in initial assessment and design – in order to identify the root cause of the corrosion and determine the proper solution for the individual application.
 

LifeJacket® Engineering Team Leader
Doug Leng

Doug Leng

Doug Leng is a Vice President of Business Development with STRUCTURAL TECHNOLOGIES, Hanover MD. He received his Bachelor of Science degree in Metallurgical Engineering focused on Physical Metallurgy and Materials Processing from Michigan Technological University. He has over 20 years of industry experience with a primary focus on cathodic protection of steel reinforced concrete. Leng is the Chariman of NACE TG047 - Sacrificial Cathodic Protection of Steel Reinforced Concrete, and an active member of the International Concrete Repair Institute (ICRI), the American Concrete Institute (ACI), and the American Society of Metals (ASM). Leng is a co-inventor of the LifeJacket® Cathodic Protection System, author of several papers, articles and abstracts on the topic of cathodic protection of steel reinforced concrete. 

 

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Specialized Engineering Services for Corrosion

Corrosion Assessment

Corrosion assesmentSTRUCTURAL TECHNOLOGIES supports both our in-house and industry partners in condition assessment by performing a variety of evaluations to determine the extent of corrosion related damages. We draw upon the experience of our corrosion experts to interpret the data and ascertain the level of deterioration of a structure. In addition we evaluate the longevity of the structure based on its current condition and potential extension of its service life based on repair and/or installation of corrosion mitigation systems.

Assessment Services Include:
  • Comprehensive condition and/or corrosion assessments
  • Corrosion damage surveys
  • Corrosion rate analysis
  • Concrete contamination, including chloride and carbonation.
  • Concrete resistivity
  • Diagnostic services
  • Time to failure / chloride, carbonation modeling

Download the Information Sheet

System Engineering

Corrosion investigationSTRUCTURAL TECHNOLOGIES works closely with our clients to consider all aspects of a project including the desired life expectancy of a structure, budget, and scheduling needs. Incorporating our own proprietary products and other solutions available in the marketplace, we are able to holistically develop better, more efficient solutions for our customers.

Design Services Include:
  • Corrosion Control System selection
  • Material selection
  • Custom System design of proprietary and non-proprietary products

System Installation Support

Installation Services

LifeJacket installation

STRUCTURAL TECHNOLOGIES provides construction phase oversight on the proper installation of LifeJacket® Systems. Available services include:

  • Project-specific coordination with owners, consultants and contractors 
  • Recommended quality assurance and quality control procedures
  • On-site training and technical support 
STRUCTURAL TECHNOLOGIES' licensed engineering services are provided by Structural Technologies StrongPoint, LLC - A Structural Group Company, or through other licensed engineers.

Installation Support

LifeJacket installation

 

STRUCTURAL TECHNOLOGIES provides construction phase oversight on the proper installation of LifeJacket® Systems. Available services include:

  • Project-specific coordination with owners, consultants and contractors 

  • Recommended quality assurance and quality control procedures

  • On-site training and technical support 

 
Turnkey Investigate – Design – Build Solutions 

When paired with Structural Groups’ specialty contracting partners - we provide our clients with Turnkey Investigate-Design-Build services from corrosion investigation, through system installation monitoring and maintenance services with single-source accountability. Together, we seamlessly integrate to deliver customized, cost-effective, and long-lasting solutions for corrosion challenges.

 

 

 


 

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.