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  #16  
Old 07-10-2014, 11:38 AM
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BlackoutSteve BlackoutSteve is offline
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Really good but it's windier today and was told to stay below level 5. Meh..
We were expectimg 120klm winds last night. It was windy, but I don't think it was that much.
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  #17  
Old 08-10-2014, 08:52 AM
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Maxed it out again this morning so I could get the "looking down" pic that I forgot before.
Yep, that's my finger. I was thinking to myself, I better not drop this f-ing phone!


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Last edited by BlackoutSteve; 08-10-2014 at 04:25 PM.. Reason: resizing images
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  #18  
Old 08-10-2014, 09:35 AM
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Is that used toilet roll in the bucket?
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  #19  
Old 08-10-2014, 10:34 AM
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Steve I am not bad with heights as I use a stock picker for up to 7 metres inside a warehouse but there is no way I could be that high outdoors with any swaying going on, credit to you.
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  #20  
Old 08-10-2014, 11:55 AM
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Thanks but it's certainly something you need to build up to. I could never do this first time out.
It also helps to understand and appreciate the physics of it too. I'm not sure what the boom and basket weigh, but if it were 3 tons, not only is it still within the wheelbase at max height but there is still another 17.5 tons of machine and counterweight.
I still prefer rope access to be honest. Ropes and knots don't break and even if you fell asleep and let go of everything, it's impossible to fall. Being supported from above is always more stable.

Toilet roll. Haha!
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  #21  
Old 08-10-2014, 05:05 PM
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BlackoutSteve BlackoutSteve is offline
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..and in case you're wondering what I'm doing up there..
All precast panels have defects like blowholes, concrete flashing, damage/chips from transport or from "burking" the panels into place, or "seams" in the formwork that leaves a line or edge. Other patching items are ferrules for the props used to temporarily support the panels, lifting lugs used for lifting them into place that need patching, and grout tubes that are filled with grout to secure them into place.
All this needs "dressing" which is either grinding and/or patching. Caulking with polyurethane between panels is also required, but we did most previously within the building with fine mesh screens in place. The screens provide fall prevention and arrest any debris during general construction.
This particular building gets a texture coat paint finish that tends to hide a lot, but it doesn't hide everything. Basically, a "Class 2 finish" is required and the paint takes care of the rest. Class 3 is off-form with almost no dressing except for transport/installation damage, and a Class 1 is a close to perfect finish with no defects visible at all.

Here, I have "bagged" a panel with rather large blowholes. Bagging is basically rubbing a mixed concrete repair mortar into the holes with a glove and a spray bottle. I'm using a lightweight "panel patch" that is so light, that it will float in water when cured. Light weight is very good when patching large vertical defects and especially defects that are underneath as it's own adhesion can easily support it's own weight. However, it's non-structural and if steel is showing, you must patch with a 70 MPa high-build. Panel patch is lucky to be 20 Mpa.


Grinding is dirty work..
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Last edited by BlackoutSteve; 09-08-2015 at 01:19 PM.. Reason: Restored image link
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  #22  
Old 30-07-2016, 05:30 PM
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Some great views from a 37 storey building I've been working on in Southbank.


I'm caulking the exterior precast panels from a crane-suspended "man-box", and because it's larger and we have the room for it, we're using the 1st Aid rescue box instead. The actual man-box is a cramped ~1.5M square, but is useful for tight areas and inside lift shafts etc..






This is looking South down Kingsway. That's Albert Park Lake.


Taken some days apart, this is looking East, that's the MCG, Rod Laver & Hisense Arenas and Government House.


A little more North is Melbourne's tallest Eureka Tower (91 storeys) and more of Southbank. Wind the clock back 15-20 years and hardly any of this was here.


West you can see straight down the Yarra River and more of Docklands. That's King Street where it passes under the casino.


WestGate Fwy and King St off ramp passing over King St.


A slightly lower view of the Burnley Tunnel portal..


Some guys on the swing stage. The shadow on the wall is us in the box! Myself and always a dog-man.


A nicer pic of Southbank looking North West.


One morning recently was very cold with a lot of low fog.


..and the hot-air balloons were out too. They drifted over and landed in Albert Park.


Looking back at the crane from close to the top of the jib.


The drop (right side) that I've been caulking.. Lot's of meters on that wall. ..an easy 500 meters worth
.
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Last edited by BlackoutSteve; 31-07-2016 at 08:14 AM..
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  #23  
Old 31-07-2016, 08:44 AM
Intruder Intruder is offline
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Thanks for the pics Steve, don't know if I would be able to feel safe hanging off a crane on top of a building.
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  #24  
Old 31-07-2016, 12:49 PM
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It's rated at quite a few more ton than my fat arse!
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Last edited by BlackoutSteve; 10-03-2017 at 07:52 PM.. Reason: typo
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  #25  
Old 31-07-2016, 05:20 PM
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Spider-Man's point of view!

That would test the nerves. Nice photos.
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  #26  
Old 31-07-2016, 07:09 PM
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  #27  
Old 10-03-2017, 06:20 PM
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Hey Steve have been using a 135ft boom the last few days. Not at max height but about 30m up and full stretch out at about 20m. Sure does make the palms sweaty. Haven't used one for a few years now. Today though the wind was howling along side the building. Have a wind speed meter on my IPhone but not sure how accurate it was. Gusts were getting up to 16mps. Ending up going down as didn't feel to safe. When your up in the boom how do you monitor wind speed?
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Last edited by LS3 HQ; 10-03-2017 at 06:22 PM.. Reason: Spelling
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  #28  
Old 10-03-2017, 07:47 PM
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BlackoutSteve BlackoutSteve is offline
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Sounds like fun! They get bouncy at full outboard stretch..
What were you using it for?

Quote:
Originally Posted by LS3 HQ View Post
When your up in the boom how do you monitor wind speed?
I use my sphinctometer.

Boom won't fall over.. There is a sh!t load of counterweight.
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  #29  
Old 13-03-2017, 12:25 PM
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Quote:
Originally Posted by BlackoutSteve View Post
All precast panels have defects like blowholes, concrete flashing, damage/chips from transport or from "burking" the panels into place, or "seams" in the formwork that leaves a line or edge.
Apart from transportation/installation defects, why don't they fix the other defects at ground level before installation?

s
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  #30  
Old 13-03-2017, 01:32 PM
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BlackoutSteve BlackoutSteve is offline
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Talking suoerficial/cosmetic repairs..
Rarely repairs are done at the yard before dispatch, because it's expected that the panel is going acquire further minor damage during transport and installation, so it eliminates the double handling in that area.

Also, many of the panel yards have concreters, but not concrete patchers.
There is a big difference between the two, not only in the products used, but how they are used. You don't "place" patching material the same way you "place" concrete.
On sites, there are concreting crews and patching crews and they are more often separate subcontracting companies.

Another reason is that a large portion of the panel is unseen/unexposed once installed, so it's pointless to go ahead and do repairs on areas that will be hidden..

Structural repairs are a different story, and those are evaluated case by case with many factors, mainly time and cost. Recasting a replacement panel can take weeks.
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Last edited by BlackoutSteve; 13-03-2017 at 01:35 PM..
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