Standards, Training, and Certification in the Wastewater Industry

Presented by: Bob Murphy, Sherwin Williams

Introduction

• The purpose of this webinar is to describe how to properly specify a coating system for a specific substrate, structure, and environment by specifying specific industry standards, training and certifications to ensure a quality project.

What is a Specification?

• A detailed coating specification is a complex and sometimes confusing document to navigate. Yet, it is the rulebook for QC and QA personnel responsible for inspecting work.

Specification

• Each coating specification for an industrial structure should start with:– SSPC Technical Insight Report:

Preparing and Using Protective Coating Specifications

– SSPC PA 7

SSPC Technical Insight Report: Preparing and Using Protective Coating Specifications

• The purpose of this report is to describe some best practices for preparing and administering a quality specification for application of high performance protective coatings and linings for the wastewater industry.

Concrete Condition Assessment

• The concrete structures found in wastewater facilities are exposed to conditions that can lead to rapid deterioration of the concrete surface. It is of utmost importance to evaluate the conditions of the existing structure using a combination of visual inspection and non-destructive testing

Visual Condition Assessment

• ACI-228.2R, Report on Nondestructive Test Methods for Evaluation of Concrete in Structures

• ACI-364.1R, Guide for Evaluation of Concrete Structures Before Rehabilitation

Concrete Coating Assessment Guide

• This technical guide is a field tool for use by concrete coating professionals when assessing the condition of coating systems over concrete surfaces being evaluated for maintenance and repair coating.

• It is organized according to the steps typically followed in concrete coating condition assessment and contains a special section of color illustrations to support identification of various concrete conditions that may be encountered in the field.

Concrete Condition Assessment Guide

SSPC-PA 1

• SSPC-PA 7, Applying Thin Film Coatings to Concrete

Surface Preparation

• Dual Purpose: Cleaning the surface Roughening the surface

Surface Cleanliness Standards

• SSPC and NACE issue consensus standards• Currently SSPC has issued 13 cleanliness standards• NACE is jointly referenced in 7 of the 13• SSPC-SP 13/NACE No. 6, Surface Preparation of Concrete• International Standardization Organization (ISO) also publishes

surface preparation cleaning standards• ICRI 310.2, Selecting and Specifying Concrete Surface

Preparation for Sealers, Coatings, Polymer Overlays, and Concrete Repair

SSPC-SP 13/NACE No. 6

• This standard gives requirements for surface preparation of concrete by methods of:– Mechanical– Chemical– Thermal

SSPC-SP 13/NACE No. 6• This standard provides information and guidance on:– Inspection procedures prior to surface preparation– Surface preparation– Inspection and classification of prepared concrete

surfaces– Acceptance criteria– Safety and environmental requirements

Inspection Procedures Prior to Surface Preparation

• Visual inspection• Concrete cure• Concrete defects• Physical damage• Chemical damage• Contamination • Moisture

Surface Preparation

• Surface cleaning– Vacuum cleaning, air blast cleaning, water

cleaning, detergent cleaning, steam cleaning• Mechanical surface preparation methods– Dry abrasive blasting, wet abrasive blasting,

vacuum assisted abrasive blasting, centrifugal shot blasting

Surface Preparation

• Mechanical surface preparation methods (cont’d)– High pressure water cleaning or waterjetting– Impact tools such as: scarifier, scabbler, and a

roto-peener– Power tools such circular grinder

• Chemical • Flame

Inspection and Classification of Prepared Concrete Surfaces

• Surface Tensile Strength• Coating adhesion

– ASTM D7234• Surface profile

– ICRI 310.2• Surface cleanliness• pH

– ASTM D4262• Moisture content

– ASTM D4263, ASTM F1869, ASTM F2170• Holiday detection

– ASTM D4787, ASTM D5162

Acceptance Criteria

Paint Standard

• SSPC Paint 44: Liquid-Applied Organic Polymeric Coatings and Linings for Concrete Structures in Municipal Wastewater Facilities, Performance-Based

• ASTM G210, Standard Practice for Operating the Severe Wastewater Analysis Testing Apparatus

SSPC Paint Application Standards• SSPC-PA 9, Measurement of Dry Coating

Thickness on Cementitious Substrates Using Ultrasonic Gages

SSPC-PA 9

SSPC-PA 9

SSPC-PA 9

Additional Industry Standards• ACI: American Concrete Institute• ICRI: International Concrete Repair

Institute• ASTM International• AWWA: American Water Works

Association• ISO: International Standards Organization

QP Certifications

What is QP Certification?• A proven way for facility owners and specifiers

to evaluate contractor capabilities to perform quality blasting and application work for coating projects

• Certified contractors will have the experience, knowledge and equipment to produce high quality work

Why Certified Contractors?• Certified contractors are experienced with a

demonstrated history and competence on protective coatings projects.

• Assurance that projects will be completed within your specifications.

• Lower risks of safety, health, and costly environmental compliance violations.

Types of SSPC QP Certification• QP 1 – Field Application of Coatings• QP 2 – Field Removal of Hazardous Coatings• QP 3 – Shop/Fixed Coating Operations• QP 5 – Coatings Inspection Company• QP 6 – Contractor Metalizing Certification• QP 8 – Coating/Surfacing to Concrete• QP 9 – Architectural Paints and Coatings

Training/Certification Programs• Floor Coating Basics• Concrete Coating Basics• Concrete Coating Inspector Program • CCI Supplement Determining the Level of Moisture

in Concrete• Basics of Concrete Surface Preparation • Plural Component Application for Polyureas and

High Solid Coatings

Floor Coatings Basics

• This course is designed to meet the practical training requirements of SSPC-QP 8 Section 4.4, which require that each job crew chief and each QC manager complete a minimum two-day overview of concrete components, coating and surfacing types, and surface preparation and substrate repair techniques based on SSPC consensus standards TU-10, “Procedures for Applying Thick Film Coatings and Surfacings Over Concrete Floors.”

Concrete Coating Basics

• This course is designed to provide basic training to contractors and act as a prerequisite for individuals seeking Concrete Coating Inspector Certification. This course also meets the practical training requirements of SSPC-QP 8, Section 4.4, which requires that each job crew chief and each QC Manager complete a minimum two-day overview of concrete components, coating and surfacing types, surface preparation and substrate repair techniques based on SSPC consensus standard TU-10, Procedures for Applying Thick Film Coatings and Surfacings Over Concrete Floors.

Concrete Coating Inspector Program (CCI)

• The objective of this course is to thoroughly train individuals in the proper methods of inspecting surface preparation and installation of industrial protective coatings on concrete industrial structures and facilities.

CCI Supplement Determining the Level of Moisture in Concrete

• This certification course covers those skills required to conduct moisture testing of concrete substrates prior to coating application. It defines and explains the steps for measuring moisture in accordance with relevant ASTM Standard Test Methods.

Basics of Concrete Surface Preparation

• This course defines surface preparation for concrete through a brief review of the steps involved. It then provides an overview of the methods and the standards referenced when preparing concrete for installation of the coating/surfacing.

Plural Component Application for Polyureas and High Solid Coatings

• This course is designed to train applicators in the application of protective coatings by airless spray using plural component spray equipment. The program focus is on the application of two component high solids, polyurethanes and polyurea coatings in a marine/industrial environment on steel or concrete.

• By being aware of industry standards, training and certifications you can properly specify a coating system for a specific environment and structure to ensure a quality project

Summary