[Leica] IMG: Repair of WWII Concrete

[Jim Nichols]

Thanks, Lluis.  The truck was so bright and fresh that I couldn't pass 
it up.  Like you, I shot his back.  Wish I could have got his face, as well.

Jim Nichols
Tullahoma, TN USA

On 2/18/2016 6:48 PM, lluisripollphotography wrote:
> Well documented Jim! My favorite is this one
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> <http://www.gallery.leica-users.org/v/OldNick/Wash+Job+3161.tif.html>
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> Lluis
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>
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>> El 18 febr 2016, a les 21:19, Jim Nichols <jhnichols at lighttube.net> va escriure:
>>
>> I took a walk in the sunshine today at the local airport.  Felt good!
>>
>> This airport was built during WWII as an US Army Air Force training base for B-24s, hence the concrete was very thick to withstand the wheel loads.  While much of it has held up well, places that received a lot of traffic have developed cracks.  A contractor has been hired to cut out these broken areas and replace them with new concrete.  ( It is interesting to me that, while concrete made today in our area uses crushed limestone as the aggregate, I have seen areas of the original pours that used creek gravel, including a few mussel shells, as the aggregate.)
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>> This image gives an idea of the thickness of the original concrete.
>> http://www.gallery.leica-users.org/v/OldNick/Thick+Concrete+3162.tif.html
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>> To tie the new to the old, the old concrete is drilled and rebar is installed.
>> http://www.gallery.leica-users.org/v/OldNick/Drilling+for+Rebar+3163.tif.html
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>> About half of this section has been replaced, as the crews work with manageable pour sections.
>> http://www.gallery.leica-users.org/v/OldNick/Working+Concrete+3157.tif.html
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>> The rotating mixer drum must be washed out after each pour.
>> http://www.gallery.leica-users.org/v/OldNick/Wash+Job+3161.tif.html
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>> And then, the truck heads back to the plant for another load. Multiple trucks were in use, to keep the job moving at a workable pace.
>> http://www.gallery.leica-users.org/v/OldNick/Going+to+Reload+3165.tif.html
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>> Fuji X-E1 with Fujinon 35/2.0
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>> Comments and critiques welcomed.
>>
>> -- 
>> Jim Nichols
>> Tullahoma, TN USA
>>
>>
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