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

Student Manual

Best Practices Current Specifications

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 ghunsicker@structural.net miroslav.vejvoda@post-tensioning.org