ALC Demolitions Study Guide 2023 Complete

ALC Demolitions Study Guide 2023 Complete
Publication for Explosives and Demolitions
TM 3-34.82
Publication for Engineer Field Data
TM 3-34.85
What is required for C4 to ignite?
Heat and Pressure
What are the three Detonating Effects?
- Deformation
- Spalling
- Radial Cracking
How does charge construction affect the outcome of the blast?
- Placement and priming. Where the prime is placed will dictate the direction of the
explosive wave.
When a charge detonates, what does the explosion change into?
- Highly compressed gas
Problem Solving Format: Step 1
Identify and measure critical dimensions.
Problem Solving Format: Step 2
Calculate for TNT/Rule of thumb
Problem Solving Format: Step 3
- Divide by RE Factor (Skip this step if using TNT)
Problem Solving Format: Step 4
- Divide by package weight/volume round up to next whole package.
Problem Solving Format: Step 5
- Calculate number of charges (Number of Targets and Cuts)
Problem Solving Format: Step 6
- Calculate total amount of explosive ( Step 4 x Step 6)
Formula for Internal Timber Cutting
P = D2/250
Formula for External Timber Cutting
P = D2/40
Formula for Abatis
P = D2/50
TNT Unit and RE
- .25, .50, and 1.00 Unit
- 1.00 RE
M112 Block Unit and RE
- 1.25 Unit
- 1.34 RE
M118 Block Unit and RE
-