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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). PTM 611.
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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)
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
PTM 611 • Materials Quality Assurance Stewardship Review • Recommendation • “Security of field cured cylinders should be improved.”
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)
PTM 611 • Metal Tags >5mm Saw or Grind into Tolerance
PTM 611 • Destructible Stickers • Controlled Environment • Worked Good
PTM 611 • Statewide Pilot Project • 3 Projects per District • Pre-fab facilities
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PTM 611 • Results……………………. Some Good
PTM 611 • Back to Basics
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
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…….
PTM 611 • Each Specimen Mold Must Contain the Signature of a • PennDOT Representative • Contractor’s Certified Technician • Technician’s Certification Number
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……….
PTM 611 • Each Specimen Must Contain the Signature of a • PennDOT Representative • Contractor’s Certified Technician • Certification Number
PTM 611 • Date Molded • Construction Area • Series Number • Class of Concrete • Specimen Type • PennDOT Rep Signature • Concrete Technician • Technician’s Certification #
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)
PTM 611 • Specimen Types • Acceptance Testing (AT) • Quality Control Testing (QC) • Verification Testing (VT) • Independent Assurance Testing (IA) • Quality Assurance Testing (QA)