Quality Assurance Essentials Emulsion Emulsion Tas ask k For - - PowerPoint PPT Presentation

Quality Assurance Essentials

Emulsion Emulsion Tas ask k For

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ce Mee Meeting ting

By: Colin A. Franco, P.E. Associate Chief Engineer RIDOT

Den Denver er - May May 21 21-22 22, , 20 2017 17

Quality Assurance - Definition

AASHT HTO O R10 0 & TR & TRB Cir ircula lar r E-C173 73 Qualit ity y Assura rance nce – Al All t l thos

• se planned and

systematic act ctio ions s nece cess ssar ary to provide confidence that a product or facility will perform satisfactorily in service …

• Applies to projects on the NHS
• State administered and locally administered
• Including Design-Build - 23CFR637.207(b)

“All provisions of 637.207(a) are applicable to Design-Build projects and other alternative contracting methods.”

• Non-NHS projects
• Many States apply same QA procedures as NHS

Applicability of 23 CFR 637

QA Program

Agency Acceptance Dispute Resolution Independent Assurance Contractor QC Lab Qualification Personnel Qualification

Core Elements of a Quality Assurance Program

Core Elements of a QA Program

Quality Assurance Quality Control Agency Acceptance Independent Assurance Dispute Resolution Laboratories Personnel

• All acceptance activities must be

carried out by the Agency or their “Designated Agent”

• Agency independently performs:
• Acceptance (Verification) Testing

Agency Acceptance

Acceptance Program

• Acceptance program. All factors that

comprise the Agency determination of the quality of the product as specified in the contract requirements. These factors include:

• verification sampling,
• testing,
• inspection

Acceptance Function

• Acceptance is not focused on directing the methods used to achieve conformance
• The primary objectives of agency acceptance are:
• Measure the Quality of all materials produced

and placed by the contractor

• Determine the corresponding payment

the contractor should receive

Acceptance Function

• Quality measurement is achieved through three general acceptance activities:
• Monitoring the adequacy of contractor QC activity
• Performing acceptance inspection to identify visually deficient work
• Performing Acceptance sampling and testing for key quality characteristics
• Agency is obtaining information to confirm that all products meet the specified

quality level

Independent Assurance - “Activities that are an unbiased and independent evaluation of all the sampling and testing procedures used in the Quality Assurance Program”

Independent Assurance - IA

• Provide an assessment of

personnel proficiency and equipment for both agency and contractor

Independent Assurance activities:

Scope of IA Activities

• Performed by Agency or Designated Agent personnel who are not

directly responsible for project Acceptance sampling and testing

• Provides periodic independent evaluation of QC and Acceptance

personnel and their equipment

• Not used to make a determination of work quality or

acceptability

Independent Assurance – IA (cont.)

Quality Control - QC - “The system used by a Contractor party to monitor, assess and adjust their production or placement processes to ensure that the final product will meet the specified level of quality.”

Definition Contractor Quality Control

• QC is the responsibility of

the Contractor

• The party producing or

placing the product is in the best position to exercise Quality Control

Contractor Responsibility for Quality Control

Scope of Quality Control Activities

• Contractor’s QC system should address:
• Materials production processes
• Materials transportation and handling
• Field placement procedures
• Calibration and maintenance of equipment
• Activities (sampling, testing and inspection) to maintain each process in control
• Means to make timely adjustments and corrections

Contractor QC Operating Documents

• Quality Control Plan - A project specific document prepared by the contractor

which identifies QC personnel and procedures that will be used to maintain production and placement processes in control and meet the agency specification requirements.

• Central Laboratories
• Consultant Labs used for Independent

Assurance (IA)

• Consultant Labs used for Dispute Resolution

Requirements for Laboratory Accreditation

“Laboratories that are capable as defined by appropriate programs established by each Agency.”

Qualified Laboratories

• Laboratory Qualification

Program

• All other Labs performing

sampling and testing that is utilized in the Agency’s acceptance decision

Laboratory Qualification

Qualified Personnel - “Personnel who are capable as defined by appropriate programs established or recognized by each Agency.”

Definition Qualified Personnel

Personnel who are recognized by a formal certifying body as qualified to perform specific procedures.

Definition Certified Personnel

• Formal training
• On-the-job training
• Specified re-

qualification intervals

• Proficiency demonstration
• A written exam
• A process for

disqualification or decertification A complete personnel qualification/certification program should include, at minimum:

Requirement for Personnel Qualification / Certification

• Dispute Resolution - The procedure used

to resolve discrepancies between the Agency’s Acceptance and Contractor’s QC testing results that could impact payment.

• Dispute Resolution system required when

QC results used in Acceptance decision.

Materials Testing Dispute Resolution

• Can be performed within the DOT
• Use of accredited third party

laboratory can be used.

Responsibility for Dispute Resolution

SAMPLE

• 5. Tests performed during the construction of the

• 6. Tests associated with post construction/in-

SECTION DESCRIPTION

• C. Material conformance testing
• 4. Tests and processess to establish the design and construction criteria utilizing specific materials and resources
• B. Process control tests conducted during the

• 2. ASPHALT

EMULSION GRADES

• 1. List of various applications for bitumen emulsions
• 2. List of the all grades of bitumen emulsions that can be used for

• 3. Describes the various tests associated with the

PERFORMANCE TESTS

• A. Lists test performed when designing the emulsion

3. MANUFACTURING OF LIQUID BITUMEN EMULSION

5. CONSTRUCTION

1. EMULSION APPLICATIONS

6. IN-SERVICE PERFORMANCE REQUIREMENTS FUNCTION AND DURABILITY

• 4. DESIGN/

PRECONSTRUCTION ENGINEERING

B. MATERIAL MANUFACTURING (STABILITY/CONSISTENCY)

A. MATERIAL ENGINEERING AND DESIGN

Quality Assurance Testing

SAMPLE

• 5. Tests performed during the construction of

• 6. Tests associated with post construction/in-

SECTION DESCRIPTION

• C. Material conformance testing
• 4. Tests and processess to establish the design and construction criteria

• B. Process control tests conducted during the

• 2. ASPHALT

EMULSION GRADES

• 1. List of various applications for bitumen

• 2. List of the all grades of bitumen emulsions that can

• 3. Describes the various tests associated with

PERFORMANCE TESTS

• A. Lists test performed when designing the

5. CONSTRUCTION

1. EMULSION APPLICATIONS

6. IN-SERVICE PERFORMANCE REQUIREMENTS FUNCTION AND DURABILITY

• 4. DESIGN/

PRECONSTRUCTION ENGINEERING

Quality Assurance Testing

Questions

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