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  #11  
Old June 11th 21, 04:50 PM posted to rec.bicycles.tech
Tom Kunich[_4_]
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Posts: 2,196
Default Electric Bikes

On Thursday, June 10, 2021 at 6:31:57 PM UTC-7, jbeattie wrote:
On Thursday, June 10, 2021 at 5:38:34 PM UTC-7, AMuzi wrote:
On 6/10/2021 6:28 PM, wrote:
On Wednesday, June 9, 2021 at 7:54:32 PM UTC-5, John B. wrote:

Modern concrete
Typically, a batch of concrete can be made by using 1 part Portland
cement, 2 parts dry sand, 3 parts dry stone, 1/2 part water.

John B.

Not to get off topic. !!!!!!!!!!!!!!!!! What is the topic anymore?
I've only dealt with concrete once in my life I think. Last summer I helped put a deck on and we anchored the posts in concrete. We used the ready to use bags you buy at the hardware store. Dump the bag into a wheel barrow and add some water and mix it with a shovel. Then pour in the hole. No measuring involved. Water is just whatever looks right so it mixes up to be however dense or soupy seems right.

What is a "part"? Your recipe above says parts frequently. Cement comes in bags. 50 pounds maybe. Dry powder basically. Sand and stone are measured be weight? or volume? 50 pounds of sand? 150 pounds of stone? or 2 buckets or bags of sand? 3 buckets or bags of stone? 1/2 bucket of water? 1/2 barrel of water? 1/2 bag of water?

Maybe it's like Italian grandmother recipes; handful, half
a handful, some, plenty, pinch, etc. The Greeks use 'hoofta'
which is a grandmother's hand full: Just as precise as it
needs to be.

I hear they had Italian grandmothers mixing concrete at the Hoover Dam. Eh, a liddle a dis, a liddle a dat (Louis Prima music in background)
http://digital-desert.com/hoover-dam/concrete.html


You Italian Grandmother must have mixed the concrete for my driveway. It is cracked and broken with age whereas the walkway and the floor of the garage and the foundation of the house is still perfect since it was done by the original builders and not the clowns that added things on.
 




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