Embed Size (px)
Citation preview
VECTORCORROSIONTECHNOLOGIES
Post-Tech® PTI Impregnation SystemCorrosion Protection System for Bonded Post-Tension Tendons
Vector-Corrosion.com
PTI Brochure REV 2018.indd 1 2018-12-19 10:50 AM
Vector-Corrosion.com
Vector Corrosion Technologies
Vector has earned numerous awards and patents for ground breaking innovations in corrosion mitigation technologies and services. • Galvanic Protection Systems• Impressed Current Cathodic Protection• Electrochemical Treatments• Post-Tensioned Services
Post-Tech Services
Vector specializes in the investigation and rehabilitation of bonded and unbonded post-tensioned concrete structures. Our Post-Tech services include: • Non-destructive Evaluation• Moisture Testing / Corrosion Evaluation• Cable Drying• PTI Impregnation System• Grease and Grout Injection• Tendon Repair and Replacement
Canada474B Dovercourt DriveWinnipeg, Manitoba R3Y 1G4Phone: +1 (204) 489-9611Fax: +1 (204) 489-9633E-mail: [email protected]
United Kingdom27A Upper High StreetCradley Heath UK, B64 5HXPhone: +44 (0) 1384 671400E-mail: [email protected]
United States8413 Laurel Fair Circle, Suite 200ATampa, FL 33610Phone: +1 (813) 830-7566Fax: +1 (813) 830-7565E-mail: [email protected]
VECTORCORROSIONTECHNOLOGIES
Vector, Post-Tech,the Vector Logo are registered trademarks. © 2017 Vector Corrosion Technologies. Printed in Canada.
8
PTI Brochure REV 2018.indd 8 2018-12-19 10:50 AM
VECTORCORROSION TECHNOLOGIES
Vector-corrosion.com
VECTORCORROSION TECHNOLOGIES
VECTORCORROSIONTECHNOLOGIES
Vector-Corrosion.com
2
Post-Tech® PTI Impregnation System Corrosion Protection System for Bonded Post-Tension Tendons
The Post-Tech PTI Impregnation System is specifically engineered to mitigate corrosion in bonded post-tension tendons. The impregnation material is applied under pressure and travels along the length of strands to mitigate corrosion in tendons with grout defects such as segregation, soft grout, chloride contamination and voids. • Post-tensioned bridges • Other post-tensioned structures• Grouted stay cables • Suspension and hangar cables • Prestressed concrete structures• Buttonhead and paper-wrapped tendons
The Post-Tech PTI system uses the naturally occurring interstitial spaces in high strength steel strands to deliver a formulated low viscosity dual action hydrocarbon silicon polymer resin.• Displaces moisture from the steel surface• Forms a protective barrier on any exposed steel surfaces• Impregnates the surrounding grout for an additional barrier to
moisture and oxygen.
Post-Tech PTI flows along interstitial spaces in strands
PTI Brochure REV 2018.indd 2 2018-12-19 10:50 AM
Post-Tech® PTI Impregnation System
0
1250
2500
3750
5000
Potentiostatic Testing
Laboratory testing was also conducted to verify the performance of the Post-Tech PTI Impregnation System on post-tension strands in chloride contaminated and chloride-free grout. Post-Tech PTI treated and untreated lollipop samples were subjected to a one hour potentiostatic corrosion test. The test automatically adjusts the applied current to maintain a constant steel potential of +200 mV versus a silver-silver chloride reference cell. In this test, resis-tance to corrosion is measured by the reduction in current passed. The Post-Tech PTI treated samples passed significantly less current than the untreated controls.
Potentionstatic testing in progress
Tota
l Cur
rent
(mC
)
93.1% Reduction in Current94.7% Reduction
Untreated Treated
0
12.5
25.0
37.5
50.0
Post-tension Strands in Chloride-Free Grout
Tota
l Cur
rent
(mC
)
81.4% Reduction in Current
94.7% Reduction
Untreated Treated
Post-tension Strands in Chloride-Free Grout with 4.5% Void
0
250
500
750
1000
Untreated Treated
94.7% Reduction94.7% Reduction in Current
Tota
l Cur
rent
(mC
)
Post-tension Strands in Chloride-Contaminated Grout (2% Cl-)
PTI Brochure REV 2018.indd 7 2018-12-19 10:50 AM
VECTORCORROSION TECHNOLOGIES
2
VECTORCORROSIONTECHNOLOGIES
Vector-Corrosion.com
2
Post-Tech® PTI Impregnation System Corrosion Protection System for Bonded Post-Tension Tendons
The Post-Tech PTI Impregnation System is specifically engineered to mitigate corrosion in bonded post-tension tendons. The impregnation material is applied under pressure and travels along the length of strands to mitigate corrosion in tendons with grout defects such as segregation, soft grout, chloride contamination and voids. • Post-tensioned bridges • Other post-tensioned structures• Grouted stay cables • Suspension and hangar cables • Prestressed concrete structures• Buttonhead and paper-wrapped tendons
The Post-Tech PTI system uses the naturally occurring interstitial spaces in high strength steel strands to deliver a formulated low viscosity dual action hydrocarbon silicon polymer resin.• Displaces moisture from the steel surface• Forms a protective barrier on any exposed steel surfaces• Impregnates the surrounding grout for an additional barrier to
moisture and oxygen.
Post-Tech PTI flows along interstitial spaces in strands
PTI Brochure REV 2018.indd 2 2018-12-19 10:50 AM
Post-Tech® PTI Impregnation System
0
1250
2500
3750
5000
Potentiostatic Testing
Laboratory testing was also conducted to verify the performance of the Post-Tech PTI Impregnation System on post-tension strands in chloride contaminated and chloride-free grout. Post-Tech PTI treated and untreated lollipop samples were subjected to a one hour potentiostatic corrosion test. The test automatically adjusts the applied current to maintain a constant steel potential of +200 mV versus a silver-silver chloride reference cell. In this test, resis-tance to corrosion is measured by the reduction in current passed. The Post-Tech PTI treated samples passed significantly less current than the untreated controls.
Potentionstatic testing in progress
Tota
l Cur
rent
(mC
)
93.1% Reduction in Current94.7% Reduction
Untreated Treated
0
12.5
25.0
37.5
50.0
Post-tension Strands in Chloride-Free Grout
Tota
l Cur
rent
(mC
)
81.4% Reduction in Current
94.7% Reduction
Untreated Treated
Post-tension Strands in Chloride-Free Grout with 4.5% Void
0
250
500
750
1000
Untreated Treated
94.7% Reduction94.7% Reduction in Current
Tota
l Cur
rent
(mC
)
Post-tension Strands in Chloride-Contaminated Grout (2% Cl-)
PTI Brochure REV 2018.indd 7 2018-12-19 10:50 AM
VECTORCORROSION TECHNOLOGIES
2
VECTORCORROSIONTECHNOLOGIES
Post-Tech® PTI Impregnation SystemCorrosion Protection System for Bonded Post-Tension Tendons
Vector-Corrosion.com
PTI Brochure REV 2018.indd 1 2018-12-19 10:50 AM
Vector-Corrosion.com
Vector Corrosion Technologies
Vector has earned numerous awards and patents for ground breaking innovations in corrosion mitigation technologies and services. • Galvanic Protection Systems• Impressed Current Cathodic Protection• Electrochemical Treatments• Post-Tensioned Services
Post-Tech Services
Vector specializes in the investigation and rehabilitation of bonded and unbonded post-tensioned concrete structures. Our Post-Tech services include: • Non-destructive Evaluation• Moisture Testing / Corrosion Evaluation• Cable Drying• PTI Impregnation System• Grease and Grout Injection• Tendon Repair and Replacement
Canada474B Dovercourt DriveWinnipeg, Manitoba R3Y 1G4Phone: +1 (204) 489-9611Fax: +1 (204) 489-9633E-mail: [email protected]
United Kingdom27A Upper High StreetCradley Heath UK, B64 5HXPhone: +44 (0) 1384 671400E-mail: [email protected]
United States8413 Laurel Fair Circle, Suite 200ATampa, FL 33610Phone: +1 (813) 830-7566Fax: +1 (813) 830-7565E-mail: [email protected]
VECTORCORROSIONTECHNOLOGIES
Vector, Post-Tech,the Vector Logo are registered trademarks. © 2017 Vector Corrosion Technologies. Printed in Canada.
8
PTI Brochure REV 2018.indd 8 2018-12-19 10:50 AM
VECTORCORROSION TECHNOLOGIES
Vector-corrosion.com
VECTORCORROSION TECHNOLOGIES
