Transcript PTM 611 - ACEC/PA

District 8-0 Winter Construction School
February 23rd, 2012
PTM 611
Linda A. Atkinson
Bureau of Project Delivery (BOPD)
Innovation & Support Services Division (ISSD)
Construction Quality Assurance Section (CQAS)
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PTM 611
• PTM 611 Making and Curing Concrete
Compression and Flexural Test Specimens
in the Field
• Revised December 2011
• Change 5 to the 2003 edition of
Publication 19
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PTM 611
• Materials Quality Assurance Stewardship
Review
– Recommendation
• “Security of field cured cylinders should be
improved.”
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PTM 611
• Questionnaire to all 50 States
• Best Practices
• Dissimilar Acceptance and Quality Control
Processes
– Nothing or Not Applicable (20)
– Locks on Cure Boxes (2)
– Metal Tags (1)
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PTM 611
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PTM 611
• Metal Tags
>5mm
Saw or
Grind into
Tolerance
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PTM 611
• Destructible
Stickers
• Controlled
Environment
• Worked Good
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PTM 611
• Statewide
Pilot Project
– 3 Projects
per District
– Pre-fab
facilities
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PTM 611
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PTM 611
• Results……………………. Some Good   
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• Some NOT SO GOOD….       
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PTM 611
• Back to Basics
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PTM 611
• Making and Curing Concrete Compression
and Flexural Test Specimens in the Field
– Added Section 12
• Identification and Security of Compression
Test Specimen Molds and Compression Test
Specimens Molded on Construction Projects
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PTM 611
• 12.1 Identification of Specimen Molds
– A PENNDOT Representative shall identify each
specimen mold with the following info
• Date Molded
• Construction Area
• Specimen Type
• Series Number
• Class of Concrete
• AND Most Importantly…….
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PTM 611
• Each Specimen Mold Must Contain the
Signature of a
– PennDOT Representative
– Contractor’s Certified Technician
• Technician’s Certification Number
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PTM 611
• 12.2 Identification of Specimens
– The PennDOT Representative will transfer the
EXACT SAME Info on the Specimens
• Date Molded
• Construction Area
• Specimen Type
• Series Number
• Class of Concrete
• AND Most Importantly……….
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PTM 611
• Each Specimen Must Contain the
Signature of a
– PennDOT Representative
– Contractor’s Certified Technician
• Certification Number
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PTM 611
•
•
•
•
•
•
•
•
Date Molded
Construction Area
Series Number
Class of Concrete
Specimen Type
PennDOT Rep Signature
Concrete Technician
Technician’s Certification #
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PTM 611
• TABLE B Section 704
Lot Sizes for Concrete Acceptance
Construction Areas
Structural Concrete
(S)
Pavement Concrete
(P)
Pavement Patching Concrete
(PP)
Incidental Concrete
(M)
Pavement Concrete RPS
(RPS)
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PTM 611
• Specimen Types
–
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–
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Acceptance Testing
Quality Control Testing
Verification Testing
Independent Assurance Testing
Quality Assurance Testing
(AT)
(QC)
(VT)
(IA)
(QA)
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