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CM Zynda Concrete /Shotcrete -Consulting

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2007 CBC / ACI / ASTM CM Zynda Concrete /Shotcrete -Consulting 23565 Morrill Rd Los Gatos Ca
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2007 CBC / ACI / ASTM

CM Zynda Concrete /Shotcrete -Consulting 23565 Morrill Rd Los Gatos Ca

Author

Christopher M. Zynda 35 Years Experience

General Manger JJ Albanese Concrete Shotcrete Division

President Shotcrete Concrete Contractors Association

Past President ASA ACI Committees

506 Shotcrete / 660 Certification ASTM-C209

ASA Approved Underground Trainer ACI Certified Examiner

Copyright Materials

This presentation is protected by US and International copyright laws. Reproduction, distribution, display and use of the presentation without permission of the Author is prohibited. © Shotcrete Concrete Association 2011

Organizations Providing Shotcrete Guidance

American Concrete Institute Guides and Specifications

American Society for Testing and Materials Test Methods and Materials Specifications

2007 California Building Code California Building

Standards Commission

Shotcrete Concrete Contractors Association

2007 California Building Code

• California Code

of Regulations

Title 24

2007 California Building Code

2007 California Building Code

2007 California Building Code

2007 California Building Code

2007 California Building Code

American Concrete Institute

Shotcrete Concrete Contractors Association

Is a Non-profit Organization of Contractors ,Engineers and others with common interest in promoting and educating the Concrete industry in the use of Shotcrete (wet mix concrete process) as means and methods for installing Concrete Description of Shotcrete (wmcp) Material is generally delivered with Ready- mix trucks per ACI 318 - ASTM C94 Standard specification for ready mixed concrete. The Aggregates are a combination of coarse and fine aggregates per ASTM C-33. Concrete is pumped thru a system with air- injected at the nozzle to increase velocity and improve the placement of the concrete. The concrete being placed may be vibrated and placed with or without the nozzle in congested and horizontal applications.

ACI Nozzleman Certification

3

0" 4½

''

#

8 #

6

#

4

36"

ACI Certification Test Panel

Core Grading is based 1- 5

Project Specific Mock –up Panels

• Job specific pre-construction test panels • The worst congested Area

Pre-Construction Mock-up

Nozzleman’s helper (Air Lance / Blow pipe operator)

Remove’s rebound / overspray

Coring Mock-up Panels

Inspector grading cores

Coring Panel


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