Value of Specifying Grouted Field Personnel Certification
Gregory Hunsicker, P.E. May 2012 PTI Convention - Nashville
Course Objective
Quality of materials and
workmanship are critical to the performance of grouted post-tensioning. Individuals who complete the training will have a sound working knowledge of all aspects of installation and inspection of all grouted post-tensioning systems
D. Van Landuyt, P.E., TXDOT
Course Objective
PTI Certification Workshop: Level 1 & 2 Bonded PT – Field Specialist
3-day workshop specifically aimed at field personnel involved in the installation, stressing, grouting, and inspection of bonded post-tensioning multi-strand and bar systems used in bridge and building construction.
Baseline of Knowledge
Course Objective
Benefits: Durability of PT construction Improved productivity Enhanced safety Risk reduction Improved profitability &
competitiveness Code & specification compliance
PTI/ASBI M50, PTI M55 Professional development Better value for the owner Consistency Focus on Preplanning QC and Record Keeping Best Practices Discussion
Attendees
Field personnel Installers and Inspectors
Owners Engineers Managers Large projects Experienced and new personnel
Experience level differentiates Level 1 and 2
Consistency
Specifying the Certification
M50 Specification Example Several DOT’s and other Owners already specify requirements for certification
7.1 Supervision Post-Tensioning Operations • Direct Supervisor of Post-Tensioning Operations shall be
certified as PTI Level 2 Bonded PT Field Specialist • Foreman of each installation and stressing crew shall be
certified as PTI Level 2 Bonded PT Field Specialist • Foreman of each grouting crew shall be certified as PTI
Level 2 Bonded PT Field Specialist and ASBI Certified Grouting Technician
• At least 25% of each crew shall be certified in PTI Level 1 Bonded PT – Field Installation
Course Description
Day 1 Introduction to Post-Tensioning Post-Tensioning Systems &
Components Materials and Properties Installation Tendon Stressing
Day 2 Grouting Field Demos
Day 3 Corrosion Protection Construction Documents Safety Troubleshooting Review Certification Exam
Course Description
1. Introduction to Post-Tensioning Basic Principles of Post-tensioning Definitions Bonded vs. UnBonded Internal and External Tendons Applications of Post-tensioning
Course Description
2. Post-tensioning Systems and Components
Terminology and components Proper handling, storage, and
protection of components Establishing and identifying job site
responsibilities Traceability
Course Description
3. Material Properties and Testing Stressing Forces Strand Production and Properties Elongations and Tolerances Sampling Testing – Friction Tests, MOE, etc Grout Testing
Course Description
4. Installation Tools and equipment unique to the
installation of post-tensioning systems
Field placement tolerances Duct assembly & installation
requirements Grout Vent Locations Anchorage installation processes Methods and techniques for
installing prestressing steel Importance of protecting the
prestressing steel prior to grouting
Course Description
5. Stressing Proper use of stressing equipment
and related tools to properly prepare, stress, and finish bar and strand tendons
Understand jacking force versus hydraulic gauge pressure
Proper marking and measuring procedures
Allowable times between stressing and grouting
Lift-offs
Course Description
6. Grouting Overall grouting operation and how
to use equipment Written Grout Plan Hot Weather / Cold Weather Procedures for checking for
blockages Proper mixing procedures related to
grout types Repairs
Course Description
7. Corrosion Protection Identify levels of corrosion protection Identify the characteristics of grout
that contribute to PT durability Identify the possible ways to protect
post-tensioning anchorages Identify ways to provide temporary
corrosion protection of tendons during construction
Course Description
8. Contract Documents Identify all of the pertinent
construction documents utilized in post-tensioned construction
Extract needed information from these documents and apply it to the construction of the project
Identify types of documents Calibrations Charts QC Records
Course Description
9. Safety Understand hazards associated with
different operations Safe material handling and storage Avoiding Issues
Course Description
10. Troubleshooting Identifying and repairing common
issues Avoiding issues by utilizing best
practices
Course Description
Exercises
Filling out Stressing Records Strand Properties Grouting Procedures Reading Plans and Specs Jobsite Safety Analysis (JSA)
Course Description
Field Demos
Install, Stressing, Grouting Compare different types of
equipment and materials Grout testing Discuss common issues / tips
and tricks
Course Description
Exam 60 question Multiple Choice
Exam Closed Book
Instructors
Professionals within the post-tensioning industry
Variety of Backgrounds CT40 PTI Committee
Certifications
Level 2 Bonded PT – Field Specialist Prerequisite: None Exam minimum score: 80% Work experience: 1500 hours in PT
500 placing + 500 stressing + 500 grouting
Level 1 Bonded PT – Field Installation Prerequisite: None Exam minimum score: 70% Work experience: None
Valid for 4 years Recertification by online exam
Upcoming Courses
Level 1&2 Bonded PT Field Specialist
May 23-25, 2012 - Gainesville, FL July 18-20, 2012 - Chicago, IL September 12-14, 2012 - San Jose, Calif. October 10-12, 2012 - Austin, TX
Special Requests All of the five nationally recognized PTI Training and Certification programs
can be presented at your location by proven industry experts. Train and certify your employees or other group and eliminate travel-related expenses. We bring the experts to you.
Value of Specifying Certification
Consistent and Current Training to Latest Specifications
Best Practices Focus on Durability of PT
construction Owners know what to expect
Contact Gregory Hunsicker or
Miroslav Vejvoda for more information [email protected] [email protected]
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