506.3R-91: Guide to Certification of Shotcrete Nozzlemen

506.3R-91: Guide to Certification of Shotcrete Nozzlemen

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**WITHDRAWN DOCUMENT - This document has been discontinued by ACI and is available for informational purposes only.


This is a guide for a means of certifying wet mix and dry mix shotcrete nozzlemen for application of several but not all types of shotcrete. Certification procedure includes a learning and training period, a written/ oral examination, and a workmanship demonstration.


Document Details

Author: ACI Committee 506

Publication Year: 2017

Pages: 13

ISBN: 9780870310195

Categories: Shotcrete

Formats: PDF

This document is Withdrawn

Table of Contents

Chapter 1: Introduction

1.1 Purpose of nozzleman certification

1.2 Available procedure for testing nozzelmen

Chapter 2: Certification production

2.1 General

2.2 Training and study period

2.3 Certification examination

2.4 Written test

2.5 Workmanship demonstration

2.6 General

2.7 Test panel requirements

2.8 Materials for the demonstration test

2.9 Mixture proportions

2.10 Equipment for the demonstration test

2.11 Shotcrete crew

2.12 Shooting the test panel or area

2.13 Curing

2.14 Testing and analysis of test panel or area

Chapter 3: Evaluation of the certification examination

Chapter 4: Summary

Chapter 5: References

Appendix A - Bibliography of shotcrete publications

Appendix B - General questions on shotcrete practice

Appendix C - Specific questions on wet mix shotcrete

Appendix D - Specific questions on dry mix shotcrete

Appendix E - Specific questions on structural shotcrete

Appendix F - Specific questions on underground shotcrete

Appendix G - Specific questions on refractory shotcrete

Appendix H - Specific questions on prestressed tank shotcrete


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