NEW Blasting Technique

PowerDeck Concept

By

R. Frank Chiappetta

Explosive Applications Engineer

Blasting Analysis International, Inc

Allentown, PA USA.

Objectives

Reduce Explosive Consumption

Eliminate Subgrade Drilling

Improve Fragmentation

Lower Ground Vibrations

Reduce Fines

Single Hole Control Tests

Instrumentation

Borehole Inspection Camera

TDR Based VOD Recorder

High-Speed Video Camera

Digital Fragmentation Analysis

Conventional & Laser Surveying

Digital Seismographs

Blasting Analysis International, Inc.

High-Speed Video

Full Scale Shots

Fragmentation Results

Normal PowerDeck

Combined Images 23 37

Minimum Size

P20 Size

P50 Size

P80 Size

Top Size

2.5 in 2.1 in

2.9 2.1

6.5 4.9

11.3 8.9

25.1 24.9

Fragmentation Results

PowerDeck shot reduced fragmentation by:

P20 Size 24 %

P50 Size 25 %

P80 Size 21 %

Proven Benefits Worldwide Eliminates or reduces subgrade drilling.

Reduces explosive consumption 10-50%

Reduces ground vibrations 10-75%

Increases fragmentation using less

explosives.

Decreases Fines

Blasting Analysis International, Inc.

Proven Benefits Worldwide *continued*

Decreases operating costs for:

Crusher liners

Electrical consumption

Excavation, haulage and processing equipment

Increases productivity and profitability.

Blasting Analysis International, Inc

NEW Blasting Technique

PowerDeck Concept

By

R. Frank Chiappetta

Explosive Applications Engineer

Blasting Analysis International, Inc

Allentown, PA USA.