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I sent an e-mail and should get a video later today/tomorrow morning.
It seems odd to blast a building on a Wednesday morning but I guess in such a congested area there really is no "good" time to do it.
I will post a copy of the video after they transfer it and e-mail me a copy.
This company is pretty interesting. They are a subsidiary of a huge conglomerate which manufactures everything from steel to shoes. In fact, they manufacture Nikes, Adidias and even Timberland boots.
The explosives demolition market in China is so large that they decided to start up their own company dedicated to performing this kind of work. There workers have drilled so many holes that 41 of them have come down with a strange lung infection and 2 have died from it.That's pretty tough when you consider that the highest paid drillers make about $246 per month.
Oddly enough, many mixtures of concrete in the European communities have asbestos as an adhesive. I witnessed the mixture on 2 projects in Europe and learned they use acid to dissolve concrete because of the asbestos content.
They also have microbes in the concrete that makes for succeptability to various viral/lung infections.
With AED, Europe, we have specified all drillers must wear at least nuisance masks.
The shrink wrap idea was discussed many years ago. Ideally, the internal protective measures should impede or mitigate any ejection of flyrock. Externally, a good geo beats down secondary fly. Controlling dust with any external material is just hooey! Dust is the greatest by-product of implosions. The few who have been imploding for many years understand that any "innovative technique" is smoke and mirrors.
I have used water deluge systems when shooting asbestos coated structures and had all emmissions well below EPA standards. Region 9 EPA has commended the water deluge and approved the use of said for other projects in the Region 9 area that had hazardous materials present. Insofar as European standards, I have yet to encounter any.
Unless this structure was shot inside a "bubble", then Blast1 is 100% correct. The vast majority of dust is caused by the fracture of concrete. In other words, it comes from inside the columns, beams and floors as they break-up. It simply cannot be controlled.
That means the dust cloud is predominately silica. With the tough new silica standards how does OSHA/EPA let you get away with that? Do you have to get a variance every time?
The Chinese have had limited success with airborne water drops from helicopters but in the long haul I don't know how practical that really is, especially in urban settings.