LOL!! Once again, Susan, you crack me up and made my day. I didn't even know we could type in large screaming red letters. How did you do that, BTW? I don't see any font options on my reply page. Bless you for this and all your other wonderful posts.
MacTech (aka "Blast, Jr.") - Two quick thoughts: one, how about some powdered magnesium? Two, fires on asphalt will, at the least, soften and/or bubble the pavement. With persistent high heat, you can even start it on fire. And I think that Susan will agree with me that you're just the guy to do it. So think concrete, or at least concrete block. And thank you for your research.
Below the reply box is a button to select "Switch to Full Reply". Once you select that option, there are all manner of capabilities that appear across the top of the text entry box. I just wish it could improve my typing skills sometimes.....
BTW, All explosives burn, just at different rates.