News from Vector Corrosion Technologies
Information on Supplemental Reinforcing in Galvanic Jackets
May 19, 2018 - Structural galvanic jackets incorporate supplemental reinforcement inside the jacket to strengthen a distressed pile that has suffered significant section loss of the primary reinforcement.
For supplemental reinforcement to benefit from a galvanic cathodic protection (GCP) system, the steel must be electrically continuous, and it must be electrically connected to the anode network. In the majority of installations with supplemental reinforcement, conventional uncoated steel is used.
Occasionally, engineers will request that epoxy coated reinforcing be installed inside galvanic jackets for additional strengthening. This is not necessary because the galvanic anode system will easily protect uncoated supplemental reinforcement and it will require unnecessary work to make the epoxy coated reinforcing steel electrically continuous such as removing portions of the coating and welding the bars together.
Uncoated supplemental reinforcement is encased in a highly alkaline cementitious grout inside the jacket. This alkaline environment promotes passivation of the conventional reinforcing, so the additional galvanic current necessary to prevent corrosion initiation of the supplemental reinforcement is minimized.
So the cost-benefit analysis associated with using epoxy-coated steel as supplemental reinforcement in galvanic jackets indicates the use of epoxy-coated supplemental reinforcement is not justified.
Galvanic pile jackets are an excellent choice to protect structures in a corrosive marine environment as well as brackish and freshwater. It is important to select the right pile jacket for the environment.
For more information on Galvashield galvanic pile jacket systems, visit our website at https://www.vector-corrosion.com/galvashield-jacket-system or contact Vector at email@example.com.
Galvashield® Fusion™ T2 Receives Most Innovative Products Award
April 4, 2018 - Vector Corrosion Technologies is pleased to announce the Galvashield® Fusion™ T2 anode system for reinforced concrete was recently awarded 2018 Most Innovative Products (MIP) at the World of Concrete Awards.
Presented annually in conjunction with the World of Concrete in Las Vegas, the MIP Awards program showcases many products exhibited at the show. Winning products are chosen by World of Concrete Attendees, a panel of industry experts and online balloting based on the innovation they bring to the industry.
Galvashield Fusion T2 is an advanced two-stage concrete corrosion mitigation system that combines the power of impressed current cathodic protection with the maintenance-free performance of galvanic anodes in a single anode unit.
After an initial phase of self-generated electrical current passivates concrete reinforcement corrosion, the anode unit automatically switches to galvanic cathodic prevention that shields the structure from future corrosion damage. The Galvashield® Fusion™ T2 anode system protects concrete structures from corrosion for up to 30 years or more.
Galvashield Fusion T2 is the ideal solution for long term, low maintenance preservation of structures suffering from corrosion-induced concrete damage such bridges and parking structures, residential and commercial buildings, piers and wharfs, and industrial facilities.
Vector Expands the Use of Galvashield® One-and-Done™ Single Wire Rebar Connection for Concrete Anodes
January 19, 2018 – Vector Corrosion Technologies is pleased to announce that it is expanding the use of its contractor-friendly One-and-Done™ single wire connection for the attachment of Galvashield® embedded galvanic anodes to reinforcing steel in concrete repairs and new construction.
Galvashield XP is the original galvanic anode for concrete and has been protecting structures around the world for over 20 years. One of the novel features of the Galvashield XP anode was its twin steel tie wires to make quick and secure connection to reinforcing steel without the need for welding.
Vector first introduced the single wire One-and-Done connection technique in 2015 with the launch of Galvashield XP Compact for the building and parking market.
The three primary features of the Galvashield One-and-Done connection are:
- Fast installation – Galvashield anodes are installed up to 2 times faster than the original two-wire method. This means significantly less labor costs and more efficiency for the contractor’s schedule.
- Simple – No special tools are required.
- Lower cost - The new anode design allows more anodes per package reducing shipping cost and reduced packaging waste for disposal.
In 2018, Vector will begin to supply Galvashield XPT with the One-and-Done connection and more products will be available in the future.
Watch the One-and-Done anode connection in action versus the traditional two wire connection on YouTube at:
At Vector Corrosion Technologies, saving structures is what we do. With the largest range of cathodic protection technologies and services to control concrete corrosion, Vector offers innovative solutions for most every budget and service life objective. For more information, contact your Vector Corrosion Technologies at firstname.lastname@example.org.
ACI 562-16: The ACI Concrete Repair Code
The May/June issue of ICRI's Concrete Repair Bulletin included an excellent overview and update on the status of the concrete repair code (Requirements for Assessment, Repair and Rehabilitation, of Existing Concrete Structures) developed by ACI International (ACI). The Code was developed by ACI Committee 562 to provide a standard for existing concrete assessment and durable repair design.
In 2016, ACI introduced an updated version. ACI 562-16 requires design professionals to satisfy strength requirements and to consider durability in repair design. ACI 562-16 also includes provisions that are unique to repair such as the evaluation of the interfacial bond of repair materials, repair detailing to minimize the potential for cracking, consideration of the repair sequence, and the interaction of the repaired areas with the non-repaired portions of the structure.
ACI 562-16 also requires consideration of durability in the design of repairs. Ideally, the durability aspects of the repair design will include consideration of the desired service life of the repaired structure. A primary goal of the durability provisions is to reduce the potential for future deterioration adjacent to the repair areas (anodic ring effect) which can be satisified by the use of Galvashield XP Embedded Galvanic Anodes.
To assist design professionals in how to use ACI 562-16, ACI/ICRI 562MAN-1611, Guide to the Code for Assessment, Repair, and Rehabilitation of Existing Concrete Structures (Fig. 4) was jointly developed by ACI and ICRI. The guide provides plain language explanation and context to the provisions in the code, including how to work with the IEBC.
To learn more, download the Concrete Repair Bulletin Article.
Chloride Extraction Technology Recognized by ICRI
At the International Concrete Repair Institute 2016 award program, the Historic Malpaso Creek Bridge rehabilitation project was recognized with an Award of Merit in the Historic Structures category. VP of Business Development Eliseo Conciatori, accepted the award on behalf of the project team Caltrans (Owner), Truesdale (GC), Vector Construction (Corrosion Subcontractor), and Vector Corrosion Technologies (Technology Provider).
The Historic Malpaso Creek Bridge, is an open spandrel reinforced concrete parabolic single span arch bridge. Situated adjacent to California’s Pacific Ocean, the Malpaso Creek Bridge has been subjected to airborne chloride exposure for 80 years. The Malpaso Creek Bridge’s reinforced concrete spandrel columns, arch-spans, and struts were treated with Norcure Electrochemical Chloride Extraction (ECE). No permanent system is left in place and the bridge maintains its original appearance, a key benefit for historic bridge preservation.
We Save Structures.
On Thursday, November 10, 2016 Daniel Rosa EIT presented "105 Gordon Baker Drive, A Case Study of Methods For Successful Post-Tensioned Cable Repairs in Occupied Buildings" at the ICRI Fall Convention in Cleveland, OH.
Daniel is a Project Manager for Vector Corrosion Technologies out of Milton, ON. VCT specizlizes in concrete rehabilitation including Post-Tension Repair, Cathodic Protection, and Structural Strengthening.
We Save Structures. For more information, contact email@example.com.
Chodachek Presents at ICRI San Juan
Jason Chodacheck, Southeast USA Business Development Manager for Vector Corrosion Technologies, received excellent feedback after presenting his paper Cathodic Protection of Concrete in Harsh Saltwater Environments at the ICRI Spring 2016 Convention in San Juan, PR. In his paper, the case studies detailed various options for protecting corrding marine structures exposed to seawater. These options include impressed current cathodic protection systems, surface applied galvanic anodes, embedded galvanic anodes for repair and new construction, and galvanic pile jackets. Click here for a copy of Jason's presentation.
Lisa Viker joins Vector as Business Development Manager – Midwest USA
Vector Corrosion Technologies, Inc. is pleased to have Mrs. Lisa Viker join our team in the role of Business Development Manager covering the Midwest territory in the United States out of the Rochester, MN area. Lisa will be working closely with Mr. Tore Arnesen, PE as he transitions into retirement after 10 years of successfully providing Innovative Solutions to Vector’s clients.
Lisa has over 6 years of concrete and corrosion repair experience and 16 years of experience in agri-business, most recently as the Repair, Protection & Strengthening Manager for the Agricultural Market Segment at Simpson Strong-Tie. Lisa is a life-long resident of Minnesota and has a Master’s degree from St. Mary’s University and a BA from St. Cloud State University. She can be reached at LisaV@vector-corrosion.com.
Bridges 2016 Conference, March 16, Ricoh Arena, Coventry
Bring your Concrete and Steel Bridge Corrosion challenges and connect with the Bridge Preservation Specialists at Vector.
Bridges 2016, March 16 at Ricoh Arena in Coventry, is the largest conference and exposition dedicated to the UK bridge construction industry. Stop by the Vector Corrosion Technologies exhibit to learn more about the latest anti-corrosion technologies for concrete and steel bridges.
VCT Claims Two Awards for Concrete Repair Excellence, October 21, 2015
Vector Corrosion Technologies (VCT) was pleased to be recognized for two recent concrete repair projects at last week's International Concrete Repair Institute (ICRI) 2015 Awards gala at the Fort Worth Hilton. The objective of the ICRI award program is to recognize outstanding concrete repair projects from around the world.
Strengthening of Grinding Building Slab at Batu Hijau Copper-Gold Mine
2015 ICRI Award of Excellence - Industrial Category
While working at the Batu Hijau Copper-Gold mine in Indonesia, Vector was asked to provide a recommendation for a heavy duty elevated slab that was experiencing major concrete cracking. Vector's investigation, which included a GPR survey, revealed the concrete reinforcing steel was installed incorrectly.
Vector devised a concrete slab strengthening plan that utilized carbon fibre reinforced polymer tape (CFRP) placed in slots near the slab surface, verified the strengthening solution in large scale laboratory testing, and implemented the repair with its local partner.
Structural Repair & Protection of Post-tensioned Parking Garage at University of Missouri Hosptials and Clinics
2015 ICRI Award of Merit - Parking Category
A unexpected tendon eruption in a 1986 vintage parking deck lead to a comprehensive evaluation which determined a large percentage of the push through (stuffed) post-tensioned tendons were broken. A large majority of the post-tensioned tendons also had missing or degraded post-tensioning grease, a problem that was exacerbated by a gutter system that trapped moisture and debris below failed expansion joints.
As part of a major rehabilitation program, post-tensioning tendons that were treated with Vector’s Post-tech PT Cable Drying system were then injected with corrosion inhibiting grease to provide a long lasting innovative solution.
For more information about Vector's award winning concrete repair and concrete corrosion solutions, contact us at firstname.lastname@example.org.
Post-tension Impregnation System Featured in PTI Journal
In the PTI Journal case study "TENDON IMPREGNATION TECHNOLOGY MITIGATES CORROSION AND PROTECTS POST-TENSIONED TENDONS", the authors describe how Vector's Post-tech PTI Post-tension Impregnation process improves the corrosion resistance of grouted or bonded post-tension tendons. The article describes the process and summarizes testing completed at Vector's Winnipeg Development Centre and by the Florida Department of Transportation.
Wade Bridge Rehabilitation
Check out our new Bridge Rehabilitation Advertisement featuring George Wade Memorial Bridge Rehabilitation. Also known as the North Bridge, the 40-year old Wade Bridge transports Interstate 81 and the Capital Beltway across the Susquehanna River in Harrisburg, Pennsylvania. The PennDOT project utilized a galvanic encasement of the chloride-contaminated concrete pier caps using Galvanode DAS distributed anode system and general galvanic protection with Galvanode ASZ+ surface-applied humectant activated arc spray zinc. The ad will run in an upcoming issue of the Associated Pennsylvania Constructor's Highway Builder. For more information, contact Vector.
CORROSION MITIGATION OF PRECAST CONCRETE PARKING GARAGES
Precast concrete structures can be susceptible to premature corrosion-related deterioration, resulting in higher maintenance costs. In a recently published article in Concrete Repair Bulletin, Tore Arnesen and Leo Whiteley presents techiques to mitigate corrosion, minimize maintenance, and extend service to existing and new precast concrete parking garages.
David Whitmore Presents ACI Repair Application Procedure (RAP) 8 - Installation of Embedded Galvanic Anodes
Mr. David Whitmore, President of Vector Corrosion Technologies, presents the updated ACI Repair Application Procedures for Installation of Embedded Galvanic Anodes (ACI RAP - 8). The video can be found HERE on ACI's YouTube Channel. Engineers can also review this document to receive on-line CEU's on the ACI Website.
Using Galvanic Anodes and Shotcrete Repairs to Mitigate Corrosion
Shotcrete is a commonly used method for repairing corrosion damaged structures. Check out this American Shotcrete Association article in Shotcrete magazine on how to incorporate embedded galvanic anodes to extend the life of shotcrete repairs.
Immediate Job Openings
Business Development Manager - Canada and U. S.
Vector Corrosion Technologies has immediate openings for Business Development Managers throughout Canada and the U.S. We are looking for individuals with a bachelor's degree and that have demonstrated successful experience in technical specification sales in the construction industry. Strong communication skills and experience in the concrete repair industry is preferred. Interested candidates should email their qualifications and salary requirements to: EliseoC@Vector-Corrosion.com
Vector Introduces Guide for Post-Tension Repair
Vector Corrosion Technologies has a new brochure to discuss solutions for repair and protection for post-tensioned structures.
Post-tensioned concrete is a unique structural system and Vector's engineers and technicians have specialized knowledge and training in the deterioration and repair of post-tensioned concrete.
Des solutions innovantes aux problèmes de corrosion™
25 février 2015 - Afin de mieux servir nos clients francophones à travers le monde, Vector Corrosion Technologies est heureuse d'annoncer que sa brochure principale de «Solutions innovantes pour la corrosion des armatures» est maintenant disponible en français. Cliquez ici pour une copie électronique; pour recevoir une copie imprimée, s’il vous plaît écrivez-nous à email@example.com ou infoEU@vector-corrosion.com.
2014 ICRI Award of Excellence Winner
Vector Corrosion Technologies was the recent recipient of the 2014 Award of Excellence for the Concrete Repair and Corrosion Mitigation of Disraeli Bridges Concrete Piers by the International Concrete Repair Institute. The City of Winnipeg utilized an innovative Design-Build-Finance-Maintain contract to address corrosion damaged concrete bridges on the Disraeli Freeway. The project utilized Norcure electrochemical chloride extraction to passivate active corrosion on land-based concrete piers and Galvanode ASZ+ humectant activated metallized zinc anode to control corrosion galvanically on two water-based concrete piers.
Vector opens Cradley Heath Research Centre
In 2014, Vector completed the purchase and renovation of a 324 m2 facility in the UK to create the Cradley Heath Research Centre. Under the direction of Dr. George Sergi, the primary focus of this to facility is to research new and innovative approaches to control corrosion in structures. This facility compliments the existing Winnipeg Development Centre which primarily focuses on product development and technical product support.
Corrosion Control Implemented on UK Multi-storey Car Parks, David Simpson 2012
With over 4000 multi-storey car parks in operation, many built without recognising their harsh environmental conditions, the United Kingdom has become a leading user of technologies to address chloride-induced corrosion of reinforced concrete.
Over the past 10 years, corrosion testing has become a standard process in the evaluation of concrete structures (e.g. BRE Digest 444 part 2) and full half-cell corrosion potential mapping is being used more frequently to assess the risk of corrosion, which in practice can vary greatly over the cark park structure.
After identifying the areas of high corrosion risk by corrosion potential testing (such as low cover concrete and high chloride concentrations), a corrosion control strategy can be implemented to target these areas using embedded galvanic anodes, an increasingly utilised technique over the past 12 years. Galvanic anodes, combined with waterproof coatings which reduce moisture content and create a barrier for future chloride contamination, deliver cost effective corrosion control that will substantially impact the service life of cark parks.